Skip to content
Back

Philadelphia’s Main Line College Admissions Guide: Lower Merion, Conestoga, Radnor, and Harriton

By Rona Aydin

Main Line College Admissions: The Quick Version

Conestoga is ranked #2 in Pennsylvania with a 1380 average SAT and 2,361 students. It is the most academically intense and highest-volume applicant producer on the Main Line. Lower Merion is ranked #7 with a 1340 SAT and the highest per-student spending ($29,884). It has the strongest national name recognition. Radnor is ranked #3 with a 1360 SAT and an extraordinary 83% AP enrollment rate, the highest in this guide. Harriton is ranked #14 with a 1350 SAT, the best student-teacher ratio (11:1), the highest proficiency scores, and the only IB Diploma Programme on the Main Line. All four schools earn an A+ from Niche and a 97% graduation rate. Below, we break down the specific admissions strategy for each school, including SAT targets, differentiation tactics, college interest data, and what admissions officers actually see when they open a file from your child’s school.

Table of Contents

Four elite public high schools. Four overlapping but distinct admissions realities. All strung along Philadelphia’s historic Main Line, the wealthiest suburban corridor on the East Coast.

Conestoga averages a 1380 SAT and ranks #2 among all Pennsylvania public high schools. Lower Merion, Kobe Bryant’s alma mater, has a 1340 average and spends $29,884 per student. Radnor boasts an extraordinary 83% AP enrollment rate, the highest in this guide. Harriton, Lower Merion’s sister school, quietly posts the highest reading proficiency of the four at 93% and offers the IB Diploma Programme. These schools sit within fifteen miles of each other, share recruiting territory with some of the most competitive private schools in America (Episcopal Academy, Haverford School, Baldwin, Agnes Irwin), and send students to the same selective universities every year.

And yet the college admissions playbook for each one is completely different.

This guide is not generic advice. It is a school-by-school breakdown of where each Main Line high school stands in the eyes of admissions officers, what data they will see when they pull your child’s school profile, and exactly what your family should be doing about it, starting now. If you are a Main Line family navigating the college admissions process, this is the most specific, data-driven resource available.

The Numbers, All in One Place

Before strategy, look at this table. It tells you most of what admissions officers already know about these four schools before they ever read a single essay.

Lower MerionConestogaRadnorHarriton
Niche Overall GradeA+A+A+A+
PA Public HS Rank#7#2#3#14
College Prep Rank (PA)#7#2#3#8
Students1,7212,3611,1751,261
Average SAT1340138013601350
Average ACT30303131
AP Enrollment39%51%83%36%
IB ProgrammeNoNoNoYes
Math Proficiency80%73%79%82%
Reading Proficiency90%85%89%93%
Graduation Rate97%97%97%97%
Student-Teacher Ratio12:116:113:111:1
Expenses Per Student$29,884$19,156$25,159$29,884
New Teachers (1st/2nd Yr)1.6%9.2%7.8%0.9%
Avg Teacher Salary$122,391$95,339$97,255$122,391
Free/Reduced Lunch21%10%16%16%
Median Household Income$119,111$162,194$164,359$176,512
Median Home Value$453,100$709,700$833,900$810,400
Diversity GradeB+A-B+B+
Sports GradeAAAB
Clubs GradeAAAA-
Admin GradeB+A-BB
Feel Safe (Poll)100%90%88%97%
Happy (Poll)73%78%75%74%
Competitive (Poll)86%95%91%97%

Source: Niche, Pennsylvania Department of Education School Performance Reports, U.S. Census Bureau. SAT/ACT averages self-reported by Niche users. Proficiency data from 2023-24 PSSA and Keystone Exam assessments.

Study that table and a story emerges. All four schools earn an A+ overall from Niche and a 97% graduation rate, that is the Main Line baseline. But beneath the surface, these schools diverge sharply. Conestoga is the largest, most academically intense, and highest-ranked (#2 in PA). Harriton has the best student-teacher ratio (11:1), the highest reading proficiency (93%), the most experienced faculty (only 0.9% new teachers), and is the only school offering the IB Diploma. Radnor has the most extraordinary AP enrollment rate at 83%, nearly double Conestoga’s and more than double Harriton’s. Lower Merion is the most recognizable name nationally, with the highest per-student spending in the group and the wealthiest district-level teacher salaries ($122,391 average).

Each of these realities produces a different admissions strategy. Here is how to think about each one.

Lower Merion High School

The Name Everyone Knows, and What That Means for Your Application

Lower Merion at a glance: Ranked #7 in Pennsylvania. 1,721 students. 1340 average SAT. 39% AP enrollment. 12:1 student-teacher ratio. $29,884 per-student spending. 90% reading proficiency. 80% math proficiency. A+ overall Niche grade. #1 in Montgomery County.

Lower Merion is the most famous public high school on the Main Line, and arguably in all of Pennsylvania. Kobe Bryant graduated here in 1996. The school sits in Ardmore, in the heart of the Main Line corridor, and carries a national reputation that few suburban public schools can match. Ranked #7 in Pennsylvania and #1 in Montgomery County, it earns an A+ overall from Niche with an A+ for academics, an A for teachers, an A for college prep, and an A for clubs and activities. With 1,721 students and a 12:1 student-teacher ratio, it sits at the midpoint of size among the four schools in this guide, large enough to offer a full spectrum of courses and activities, small enough that teachers can develop genuine relationships with students.

The academic numbers are strong across the board. An average SAT of 1340, 90% reading proficiency, 80% math proficiency, and 39% AP enrollment put Lower Merion in the top tier of Pennsylvania public schools. The Lower Merion School District spends $29,884 per student, nearly $12,000 above the national average of $17,834, and pays its teachers an average salary of $122,391, the highest of any district in this guide and among the highest in the state. Only 1.6% of teachers are in their first or second year, indicating a remarkably stable and experienced faculty. 100% of surveyed students say they feel safe, the highest safety rating of any school in this guide.

The community context is powerful. The Lower Merion School District covers some of Philadelphia’s most storied suburban communities: Ardmore, Bryn Mawr, Haverford, Merion, Narberth, and Gladwyne. The area’s cultural richness, the Barnes Foundation was originally housed in Merion, Bryn Mawr College and Haverford College are neighbours, and the district sits along the historic Pennsylvania Railroad Main Line that gave the region its name, creates an environment where academic and cultural engagement is assumed rather than aspirational. With a median household income of $119,111 in Ardmore proper (and significantly higher in neighbourhoods like Gladwyne and Merion), this is a community where families invest heavily in their children’s education.

College interest data reveals a nationally ambitious student body: University of Pittsburgh (360), Penn State (296), Temple (280), University of Pennsylvania (216), Drexel (191), NYU (149), Boston University (144), Northeastern (128), University of Maryland (124), and Carnegie Mellon (122). The presence of UPenn, NYU, Boston University, Northeastern, and Carnegie Mellon in the top ten, five highly selective national universities, signals a cohort that routinely thinks well beyond Pennsylvania’s borders. The 216 students expressing interest in UPenn reflects the natural geographic pull of a school located less than twenty minutes from Penn’s campus.

What admissions officers see: A nationally recognized, well-resourced public school with excellent academics and deep institutional infrastructure. Students from Lower Merion are expected to be strong. The school’s name alone opens a file with a favourable predisposition, but that predisposition means the bar for standing out is higher. Every applicant from Lower Merion looks good on paper. You need a spike.

The honest problem: Lower Merion’s greatest challenge is its own reputation. Because the school is so well-known and produces so many applicants to selective universities, admissions officers have extensive experience reading Lower Merion files. They know the school profile, the course offerings, the grade distribution. A student who has simply followed the standard track, honours classes, a few APs, varsity sports, service clubs, will blend in with dozens of other LM applicants. The 86% competitive rating means peers are also gunning for the same spots. The Diversity grade of B+ and 21% free/reduced lunch ratio (the highest among the four schools, reflecting Ardmore’s mixed demographics) give Lower Merion marginally more economic diversity than Radnor or Harriton, but the school still predominantly draws from affluent families. Students need to demonstrate intellectual and experiential range that their privileged context does not automatically provide. For strategies on building that range, see our guide to building a college application spike.

SAT targets: 1450+ for competitive schools, 1520+ for the most selective. At a school averaging 1340, you need to be meaningfully above the norm, and at a school this strong, “meaningfully” means 110-180 points above average.

Conestoga Senior High School

Pennsylvania’s #2 Public High School, and the Pressure Cooker That Comes With It

Conestoga at a glance: Ranked #2 in Pennsylvania. 2,361 students. 1380 average SAT. 51% AP enrollment. 16:1 student-teacher ratio. $19,156 per-student spending. 85% reading proficiency. 73% math proficiency. A+ overall Niche grade. #2 for college prep statewide.

Conestoga is, by the numbers, the most academically accomplished public high school in this guide and one of the best in the entire state. Ranked #2 in Pennsylvania, behind only Unionville, and #2 for college prep, it sits in the Tredyffrin-Easttown School District in Berwyn, a community where academic achievement is not merely encouraged but culturally demanded. With 2,361 students it is by far the largest school in this guide, and its 1380 average SAT is the highest. The 51% AP enrollment rate means more than half of Conestoga’s student body takes at least one AP course. Niche gives it an A+ for academics, an A+ for teachers, and an A+ for college prep.

The teacher quality metrics are exceptional. 93% of surveyed students say teachers genuinely care, the highest of any school in this guide. 92% say teachers give engaging lessons. The average teacher salary of $95,339, while lower than Lower Merion’s, reflects a different district cost structure rather than lesser quality; Conestoga’s A+ teacher grade and #10 ranking for public high school teachers in Pennsylvania speak for themselves. The 9.2% new-teacher rate is manageable, though higher than the near-zero rates at Lower Merion and Harriton. Per-student spending of $19,156 is above the national average but notably lower than the Lower Merion district’s $29,884, Conestoga delivers elite outcomes without elite per-pupil spending, which is itself a testament to the community’s academic culture.

The student culture at Conestoga is intense. 95% of respondents describe classmates as competitive, the second-highest in this guide (behind only Harriton’s 97%). 86% say students are creative and artsy. 90% describe students as athletic. Student traditions, football games, Culture Days, the Best Buddies Talent Show, and Cornucopia, reflect a school with genuine community spirit layered on top of relentless academic ambition. The Diversity grade of A- and 10% free/reduced lunch rate indicate a wealthy, moderately diverse community; the Tredyffrin Township median household income of $162,194 and median home value of $709,700 place this squarely in the upper echelon of Philadelphia-area suburbs.

College interest data tells a story of extraordinary ambition: Penn State (569), University of Pittsburgh (450), University of Pennsylvania (363), Temple (334), Carnegie Mellon (279), Drexel (267), NYU (240), Boston University (231), Northeastern (205), University of Michigan (171). Three things jump out. First, the 363 students expressing interest in UPenn is the highest absolute number of any school in this guide, Conestoga produces more Ivy-aspiring students than Lower Merion, Radnor, or Harriton. Second, Carnegie Mellon at #5 with 279 students reflects the strong STEM and engineering orientation of the T/E community. Third, the University of Michigan at #10 signals a student body that looks well beyond the PA-and-Philly default.

What admissions officers see: Pennsylvania’s second-ranked public high school. A massive, hyper-competitive school that produces an enormous volume of well-prepared applicants. Admissions officers at Penn, CMU, Michigan, and similar schools have deep familiarity with Conestoga, they read many files from here every year. A strong student from Conestoga is credible but expected. A strong student who also has a genuine distinguishing factor is remembered.

The honest problem: Volume. Conestoga sends more applicants to selective universities than any other school in this guide, which means your child is competing directly with their own classmates for limited spots. The 95% competitive rating is not an abstraction, it means that nearly every student in the building is working toward similar goals with similar intensity. The 16:1 student-teacher ratio, the highest in this guide and equal to the national average, makes it harder for teachers to develop the deep individual knowledge that produces powerful recommendation letters. At a school where everyone takes APs, AP coursework alone is not a differentiator. At a school where 95% of students are competitive, being competitive is baseline. Conestoga students must find the thing that no one else at Conestoga is doing. Our Research Mentorship Program is one pathway families use to build that distinction.

SAT targets: 1480+ for competitive schools, 1530+ for the most selective. At a school averaging 1380, the bar is already high, your child needs to be 100-150 points above a mean that is itself among the highest in the state.

Radnor Senior High School

The Smallest School With the Biggest AP Programme, and a Fierce Rivalry That Defines Its Identity

Radnor at a glance: Ranked #3 in Pennsylvania. 1,175 students. 1360 average SAT. 83% AP enrollment. 13:1 student-teacher ratio. $25,159 per-student spending. 89% reading proficiency. 79% math proficiency. A+ overall Niche grade. #15 in PA for athletes.

Radnor is the smallest school in this guide at 1,175 students, and in many ways the most distinctive. Ranked #3 in Pennsylvania and #3 for college prep, it earns an A+ overall from Niche with an A+ for academics, an A+ for teachers, an A+ for college prep, and an A for sports (#15 in the state for athletes). But the number that sets Radnor apart from every other school on the Main Line, and from nearly every other public school in Pennsylvania, is its 83% AP enrollment rate. More than four out of five Radnor students take at least one AP course. That is extraordinary. For context, Conestoga’s rate is 51%, Lower Merion’s is 39%, and Harriton’s is 36%. Radnor’s AP culture is not merely encouraged, it is the norm.

The Radnor Township School District invests heavily. Per-student spending of $25,159 is well above the national average. The average teacher salary of $97,255 attracts strong faculty, and the 7.8% new-teacher rate indicates reasonable stability. The 13:1 student-teacher ratio is better than the national average and significantly better than Conestoga’s 16:1. 90% of surveyed students say teachers genuinely care, and 81% say lessons are engaging. The community context is affluent and ambitious: Radnor Township’s median household income of $164,359 and median home value of $833,900 (the highest in this guide) reflect a neighbourhood where families expect top-tier educational outcomes. The township is home to Villanova University and sits adjacent to Eastern University, giving students daily proximity to college campuses.

The school’s identity is deeply shaped by its rivalry with Lower Merion. “LM Week”, the annual build-up to the Lower Merion vs. Radnor football game, is the single most mentioned school tradition by Radnor students, cited by 39% of poll respondents. No other tradition at any school in this guide commands that level of attention. This rivalry matters for admissions because it reveals something about Radnor’s self-concept: the school defines itself in relation to its larger, more famous neighbour, and that chip-on-the-shoulder energy produces students who are hungry to prove themselves. 91% of respondents say students are competitive, and 91% say students are athletic.

College interest data reflects serious national ambition: Penn State (298), University of Pittsburgh (228), Temple (161), University of Pennsylvania (133), NYU (129), Drexel (125), Boston University (99), University of Michigan (94), Carnegie Mellon (90), University of Delaware (89). The top ten is nearly identical to Conestoga’s, a who’s who of competitive national universities. UPenn at #4 with 133 students, CMU at #9, and Michigan at #8 all signal a student body that benchmarks itself against the most selective schools in the country.

What admissions officers see: A small, elite public school with one of the highest AP participation rates in the state. Students from Radnor are expected to have taken a heavy AP load, and if they haven’t, that absence will be noticed. The school’s #3 state ranking and strong athletics make it a familiar name at selective universities throughout the Northeast and Mid-Atlantic.

The honest problem: When 83% of your school takes AP courses, AP coursework is not a differentiator, it is simply expected. This is Radnor’s paradox. The school’s greatest strength (its AP culture) neutralises the most common way students try to demonstrate academic rigour. A Radnor student applying to Penn or CMU with six AP courses is not impressive; they are average. The path to differentiation at Radnor runs through depth, not breadth: independent research, published work, entrepreneurial projects, or competition-level achievement in a specific domain. The Administration grade of B and the relatively lower creative/artsy poll (61%, the lowest in this guide) suggest a school culture that rewards traditional achievement metrics. Students with unconventional intellectual interests may need to build their platforms outside the school. Our Passion Projects programme helps students do exactly that.

SAT targets: 1460+ for competitive schools, 1520+ for the most selective. At a school averaging 1360, a 1520 puts your child 160 points above the mean, a strong contextual signal, though not as dramatic as what is possible at schools with lower averages.

Harriton Senior High School

Lower Merion’s Quieter Sister, With the IB Diploma and the Best Data in the Guide

Harriton at a glance: Ranked #14 in Pennsylvania. 1,261 students. 1350 average SAT. 36% AP enrollment. IB Diploma Programme offered. 11:1 student-teacher ratio. $29,884 per-student spending. 93% reading proficiency. 82% math proficiency. A+ overall Niche grade. Only 0.9% new teachers.

Harriton is the most underestimated school on the Main Line. It shares a district, a superintendent, a tax base, and a teacher salary schedule with Lower Merion, both schools are part of the Lower Merion School District, and yet Lower Merion gets all the name recognition. That asymmetry is, paradoxically, one of Harriton’s greatest admissions advantages.

Ranked #14 in Pennsylvania and #8 for college prep, Harriton earns an A+ overall with an A+ for academics and an A for teachers. With 1,261 students and an 11:1 student-teacher ratio, the best in this guide and well below the 16:1 national average, Harriton offers the most individualised learning environment of any school covered here. The numbers back this up: 93% reading proficiency (the highest in this guide), 82% math proficiency (also the highest), a 1350 average SAT, and a 97% graduation rate. Only 0.9% of teachers are in their first or second year, a faculty stability rate that is almost unheard of in public education. The average teacher salary of $122,391, identical to Lower Merion’s, means Harriton’s experienced teachers have no financial incentive to leave.

But Harriton’s most important strategic asset is one that Lower Merion, Conestoga, and Radnor cannot match: the International Baccalaureate (IB) Diploma Programme. The IB Diploma is a rigorous, internationally recognised two-year curriculum for 11th and 12th graders that requires students to complete six subject groups, an extended essay, a Theory of Knowledge course, and community service hours (CAS). Admissions officers at selective universities, particularly those with an international orientation like Georgetown, NYU, and Columbia, view the IB Diploma as a qualitatively different academic credential from a collection of AP courses. The IB represents a cohesive programme of study; AP represents a menu of individual tests. Both are respected, but the IB carries a distinctive signal of intellectual breadth and self-discipline that AP does not automatically convey.

The community context is the wealthiest in this guide by household income. Harriton’s attendance area covers parts of Lower Merion Township with a median household income of $176,512 and median home values of $810,400. Rosemont, where the school is located, sits adjacent to Bryn Mawr and Villanova, communities where educational aspiration is the air families breathe. 97% of surveyed students describe classmates as competitive, the highest of any school in this guide. 97% say they feel safe. Yet only 63% describe students as athletic and 71% say students are creative and artsy, painting a picture of a school whose intensity is focused overwhelmingly on academics rather than distributed across athletics or arts.

College interest data is revealing: Penn State (268), University of Pittsburgh (216), University of Pennsylvania (202), Temple (182), Drexel (136), NYU (123), Boston University (122), University of Michigan (115), Carnegie Mellon (102), Northeastern (94). The 202 students expressing interest in UPenn is notable, Harriton sends fewer students than Conestoga (363) or Lower Merion (216) in raw numbers, but proportionally, it punches well above its weight. More importantly, the presence of Michigan (#8), Carnegie Mellon (#9), and Northeastern (#10) alongside the usual PA-and-Philly schools indicates a student body that looks nationally for college options.

What admissions officers see: A strong, well-funded school in the Lower Merion district that offers the IB Diploma. An IB Diploma student from Harriton with strong predicted scores and a 1450+ SAT presents a distinctive profile that AP students from neighbouring schools cannot replicate. The school’s smaller size and extraordinary faculty stability mean recommendation letters from Harriton teachers tend to be substantive and personal, a genuine advantage in holistic admissions.

The honest problem: Harriton lives in Lower Merion’s shadow. Admissions officers who know the Main Line well understand that Harriton and Lower Merion share a district and similar resources, but officers at schools further afield may default to recognising the Lower Merion name without giving Harriton equal credit. This is manageable, school counsellors can address it in their school profile, but families should be aware that name recognition is not evenly distributed. The Sports grade of B (the lowest in this guide) and the 63% athletic poll suggest that student-athletes may find fewer competitive opportunities than at Radnor or Lower Merion. The Administration grade of B and club funding concerns (only 61% say clubs get adequate funding) are minor but worth noting. For a school that competes directly with Lower Merion for local attention, Harriton families need to ensure their child’s application makes the school’s specific advantages, particularly the IB programme, unmistakably clear.

SAT targets: 1450+ for competitive schools, 1520+ for the most selective. At a 1350 average, a 1520 represents a 170-point contextual gap, a strong signal. Pair that with an IB Diploma and you have one of the most compelling public school applications on the Main Line.

Where Main Line Students Are Looking, and Where They Should Be Looking

RankLower MerionConestogaRadnorHarriton
1U. of Pittsburgh (360)Penn State (569)Penn State (298)Penn State (268)
2Penn State (296)U. of Pittsburgh (450)U. of Pittsburgh (228)U. of Pittsburgh (216)
3Temple (280)UPenn (363)Temple (161)UPenn (202)
4UPenn (216)Temple (334)UPenn (133)Temple (182)
5Drexel (191)Carnegie Mellon (279)NYU (129)Drexel (136)
6NYU (149)Drexel (267)Drexel (125)NYU (123)
7Boston U (144)NYU (240)Boston U (99)Boston U (122)
8Northeastern (128)Boston U (231)U. of Michigan (94)U. of Michigan (115)
9U. of Maryland (124)Northeastern (205)Carnegie Mellon (90)Carnegie Mellon (102)
10Carnegie Mellon (122)U. of Michigan (171)U. of Delaware (89)Northeastern (94)

The pattern across all four schools is strikingly uniform at the top, Penn State and Pitt dominate, as they do at virtually every high-performing Pennsylvania public school. But the differences in the middle of the list reveal each school’s character. Conestoga’s Carnegie Mellon interest (279 students) is the highest in the guide by a wide margin, reflecting the T/E community’s STEM orientation. Lower Merion is the only school where the University of Maryland appears in the top ten, suggesting families with Mid-Atlantic mobility. Radnor and Harriton both show Michigan in their top ten, a school that does not appear for Lower Merion, hinting at a slightly more nationally oriented applicant mindset.

What is missing from all four lists is equally telling. No liberal arts colleges appear anywhere. Not Swarthmore, not Haverford, not Bryn Mawr, despite all three being within a 20-minute drive of every school in this guide. No southern schools (Emory, Duke, UVA). No West Coast schools. The Main Line default is large, prestigious, urban or semi-urban research universities, Penn, CMU, NYU, Michigan. This is not destiny. It is the current default. Families who plan early and think beyond the default can break out of these patterns entirely.

Here are schools that every ambitious Main Line family should be investigating, many of which do not appear on any of these interest lists:

SchoolWhy Main Line Families Should Know ItDrive from Radnor
University of PennsylvaniaIvy League. 20 minutes away. Already on everyone’s radar, but too many families treat it as a reach without strategic preparation.~20 min
Swarthmore CollegeTop-5 liberal arts with engineering. Intellectually intense. 15 min from Radnor. Criminally underexplored by Main Line families.~15 min
Haverford CollegeTop-20 liberal arts. Quaker honour code. Literally on the Main Line. Tiny classes, extraordinary graduate school placement.~10 min
Bryn Mawr CollegeElite women’s college. Tri-College Consortium with Haverford and Swarthmore. PhD production rate rivals Ivy League schools.~10 min
Carnegie Mellon UniversityWorld-class CS, engineering, and arts. Already on Conestoga’s radar, every Main Line family should know it.~5 hr
Lehigh UniversityTop engineering and business. Patriot League athletics. Outstanding ROI. 75 minutes from the Main Line.~75 min
Lafayette CollegeTop-40 liberal arts with engineering. Patriot League. Small classes, strong alumni network. Overlooked by Main Line families.~90 min
Bucknell UniversityTop-40 liberal arts with engineering and management. Beautiful campus. Strong Philly-area alumni base.~3 hr
American UniversityWashington DC. Exceptional for policy, international relations, journalism. Underrated by PA families.~2.5 hr
University of RichmondTop-25 liberal arts with business school. Full-need financial aid. Close enough for a day trip.~4.5 hr

The Lower Merion vs. Harriton Question

Because Lower Merion and Harriton sit within the same district, this question comes up constantly among Lower Merion Township families: does it matter which school my child attends? The honest answer is yes, but not in the direction most families assume.

Lower MerionHarriton
Average SAT13401350
AP Enrollment39%36%
IB ProgrammeNoYes
Math Proficiency80%82%
Reading Proficiency90%93%
Student-Teacher Ratio12:111:1
New Teachers1.6%0.9%
Expenses Per Student$29,884$29,884
Competitive (Poll)86%97%
Teachers Care (Poll)74%79%
PA Rank#7#14

On nearly every academic metric that actually matters for college admissions, Harriton matches or exceeds Lower Merion. Harriton’s reading proficiency (93% vs. 90%), math proficiency (82% vs. 80%), average SAT (1350 vs. 1340), student-teacher ratio (11:1 vs. 12:1), and faculty stability (0.9% new teachers vs. 1.6%) are all marginally better. Both schools receive identical per-student funding of $29,884 and pay teachers the same average salary of $122,391, the district allocates resources equally.

Harriton’s decisive advantage is the IB Diploma Programme. An IB Diploma with strong predicted scores from Harriton is a more distinctive academic signal than a collection of AP scores from Lower Merion, because the IB represents a cohesive, internationally recognised programme of study. For students with broad intellectual interests who thrive in structured, essay-intensive academic environments, the IB is a significant differentiator that Lower Merion simply cannot offer.

Lower Merion’s advantage is name recognition and athletics. The school is more widely known by admissions officers nationally, and its A sports grade (versus Harriton’s B) provides stronger opportunities for recruited athletes. For students whose admissions strategy centres on athletic recruitment or who benefit from the school’s larger size and broader social network, Lower Merion may be the better fit.

The strategic takeaway: families in the Lower Merion School District should evaluate both schools based on their child’s specific strengths and interests, not on the assumption that LM’s name recognition automatically makes it the better choice. For many students, particularly those with strong writing skills, intellectual curiosity, and an interest in the humanities, Harriton’s IB programme may produce a more competitive college application than Lower Merion’s AP track.

The Main Line vs. the Private Schools: Understanding the Competition

Main Line families face a competitive dynamic that most suburban public school families do not: their children are applying alongside graduates of some of the most elite private schools in the country. Episcopal Academy, The Haverford School, The Baldwin School, Agnes Irwin School, and Friends’ Central School all draw from the same geographic area and send students to the same selective universities. When Penn reviews applications from the Main Line region, they are reading files from Conestoga and Episcopal in the same batch.

This is not a reason to panic, it is a reason to be strategic. Private school students often have access to smaller class sizes, more personalised college counselling, and curated extracurricular opportunities that public school students must build for themselves. The Main Line public schools counter with genuine academic rigour (Conestoga’s #2 state ranking and Radnor’s 83% AP rate rival or exceed many privates), demographic diversity, and the contextual signal that a top student chose the public school path. Admissions officers at selective universities do not automatically prefer private school applicants. They prefer compelling applicants, and a student who has maximised the resources of a top-ranked public school while building a distinctive profile outside the classroom is exactly that.

The key is to supplement where the public schools have gaps. Private schools typically provide dedicated college counsellors with caseloads of 30-50 students; public school counsellors on the Main Line manage 200+. Private schools curate internship and research networks; public school families need to build those networks independently. This is where early planning and, for many families, private college counselling makes the difference.

What Every Main Line Family Should Do (Regardless of School)

Exploit Your Geography

The Main Line sits at the epicentre of one of the densest concentrations of elite higher education institutions in the world. Within a 30-minute drive: the University of Pennsylvania, Drexel, Temple, Villanova, Swarthmore, Haverford, Bryn Mawr, Saint Joseph’s, and dozens more. Philadelphia’s research hospitals (Penn Medicine, Children’s Hospital of Philadelphia, Jefferson), cultural institutions (Philadelphia Museum of Art, Franklin Institute, Academy of Natural Sciences), and the thriving nonprofit and startup ecosystem provide extracurricular and internship opportunities that students in most suburban communities can only dream of. Campus visits, pre-college summer programmes, research internships, and community engagement in Philadelphia should be standard elements of every ambitious Main Line student’s plan.

Start Test Prep in 10th Grade, Not 11th

At schools where the average SAT ranges from 1340 to 1380, strong test scores carry meaningful but more moderate contextual weight than at lower-performing schools. A 1500 from Conestoga (average 1380) is a 120-point gap; a 1500 from a school averaging 1150 would be a 350-point gap. This means Main Line students need to aim for the highest absolute scores, not just contextual outperformance. Begin preparation in 10th grade with a diagnostic test to identify SAT vs. ACT preference and establish a timeline that allows for multiple sittings.

Go Beyond AP, Especially at Radnor

When your school’s AP enrollment rate is 51% (Conestoga) or 83% (Radnor), AP coursework is not a differentiator, it is a baseline expectation. Admissions officers at selective universities will expect Main Line students to have taken the most rigorous courses available. To distinguish yourself, go beyond the school’s AP catalogue: take courses at nearby universities through dual enrolment, pursue independent research through programmes like Oriel’s Research Mentorship Program, or engage with entrepreneurial projects that demonstrate initiative beyond the classroom.

Build a Distinctive Extracurricular Profile by End of 10th Grade

Generic club participation does not move the needle at selective schools. What matters is depth, specificity, and a narrative that connects activities to identity. The Main Line offers specific opportunities that other communities do not: proximity to Philadelphia’s world-class arts and cultural institutions, access to the Tri-College Consortium libraries and lecture series, the environmental resources of Valley Forge National Historical Park and the Wissahickon, and the deep civic infrastructure of old-line Philadelphia suburbs. A Radnor student who builds a historical preservation project connected to the Main Line’s architectural heritage tells a story no Bergen County applicant can replicate. A Conestoga student who leverages the T/E district’s STEM culture to launch an engineering initiative tells a story that goes beyond taking AP classes. For strategic frameworks, see our guide to building a college application spike.

SAT Targets at a Glance

SchoolAvg SATTarget: CompetitiveTarget: Most SelectiveGap at Top Target
Lower Merion13401450+1520++180
Conestoga13801480+1530++150
Radnor13601460+1520++160
Harriton13501450+1520++170

The “Gap at Top Target” column matters most for admissions context. Because all four Main Line schools already have high averages (1340-1380), the contextual gap at the top target ranges from +150 to +180, meaningful but less dramatic than what students at lower-performing schools can achieve. This means Main Line students must rely more heavily on non-score differentiators (extracurriculars, essays, research, leadership) to stand out. Strong test scores are necessary but not sufficient.

Teacher Quality and Recommendation Letters: A Hidden Variable

One set of numbers in the master table deserves special attention: teacher experience and engagement metrics.

SchoolNew Teachers (1st/2nd Yr)Teachers Care (Poll)Engaging Lessons (Poll)Avg Teacher Salary
Lower Merion1.6%74%61%$122,391
Conestoga9.2%93%92%$95,339
Radnor7.8%90%81%$97,255
Harriton0.9%79%74%$122,391

An interesting paradox emerges. Lower Merion and Harriton have the most experienced, highest-paid, and most stable faculties, but the lowest student ratings for engagement and caring. Conestoga has more teacher turnover and lower salaries but the highest engagement and caring ratings by a wide margin. This suggests that Conestoga’s intense academic culture drives a different kind of teacher-student relationship, one where the shared pursuit of excellence creates mutual investment. At Lower Merion and Harriton, the experienced faculty may be excellent on paper but perceived as less engaged by students, a reminder that teacher quality is not reducible to salary and tenure alone.

For college admissions, this matters because recommendation letters from teachers who know your child well and can speak to growth over time are dramatically more persuasive than generic letters. At every school, identify two teachers by the end of 10th grade who are experienced, who know your child as a person (not just a grade), and who will still be at the school when junior-year recommendation letters are due. At Conestoga, where the 16:1 ratio limits personal connection, invest in office hours and genuine intellectual engagement. At Lower Merion and Harriton, where faculty stability is exceptional but engagement scores are lower, seek out the teachers who break the pattern, the ones students rave about, and build those relationships early.

The Main Line’s Specific Pitfalls

The Penn State/Pitt Gravity Well. Penn State and Pitt dominate the top two spots at every school in this guide. They are fine universities, Penn State’s Schreyer Honors College is one of the best public honors programmes in the country, and Pitt’s medical and engineering schools are nationally ranked. But the gravitational pull toward these two schools as the obvious choice means many strong Main Line students never seriously investigate alternatives that may be better fits. Schools like Swarthmore, Haverford, Lehigh, Bucknell, Lafayette, and Richmond offer outcomes and experiences that Penn State’s general programme does not match, and all are within a half-day’s drive. Treat Penn State and Pitt as deliberate choices, not defaults.

The Liberal Arts College Blind Spot. The most striking absence in every college interest list is liberal arts colleges. Swarthmore is 15 minutes from Radnor. Haverford is literally on the Main Line. Bryn Mawr is next to Harriton. Yet none of these schools appear in any top-ten interest list. This is a failure of awareness, not a failure of fit. Main Line students, particularly those with strong writing, humanities interests, or a desire for small seminar-style classes, should be investigating the Tri-College Consortium (Haverford, Bryn Mawr, Swarthmore), along with Amherst, Williams, Middlebury, Bowdoin, and other LACs that consistently place graduates into top professional schools and careers.

The “My School Is Elite Enough” Complacency. Because all four Main Line schools are A+ rated and rank in the top 15 statewide, families sometimes assume that the school’s reputation will carry the application. It will not. At schools this strong, the reputation establishes a baseline, admissions officers expect excellence from Main Line applicants. The school name opens the door; it does not walk your child through it. Students who rely on their school’s ranking without building a distinctive individual profile will be outcompeted by classmates and private school peers who have invested in differentiation.

Late Starts. The most consequential difference between families who achieve their college goals and those who do not is timing. In the Main Line’s hyper-competitive environment, strategic college planning should begin no later than 9th grade. By 11th grade, the highest-leverage decisions, course sequencing, extracurricular depth, test prep initiation, summer programme applications, have already been made passively. If you are reading this and your child is in 9th or 10th grade, you have a genuine window of opportunity. If your child is already in 11th grade, the window is not closed, but the strategies shift from shaping a trajectory to optimising the existing one. Either way, start now.

Frequently Asked Questions

How does Conestoga compare to Lower Merion for college admissions?

Conestoga ranks higher statewide (#2 vs. #7), has a higher average SAT (1380 vs. 1340), and has significantly greater AP enrollment (51% vs. 39%). However, Lower Merion has a better student-teacher ratio (12:1 vs. 16:1), far more experienced faculty (1.6% new teachers vs. 9.2%), and spends $29,884 per student compared to Conestoga’s $19,156. Lower Merion also has greater national name recognition. Conestoga produces more applicants to selective universities in raw numbers because of its larger student body (2,361 vs. 1,721), meaning Conestoga students face more internal competition for limited spots. Both schools produce strong outcomes, but the strategies for differentiation differ: at Conestoga, the challenge is standing out in a large, intensely competitive cohort; at Lower Merion, the challenge is going beyond the school’s comfortable reputation to build a genuinely distinctive profile.

Is the IB programme at Harriton worth pursuing over AP courses at Lower Merion or Radnor?

For many students, yes. The IB Diploma Programme at Harriton is a rigorous, internationally recognised two-year curriculum that requires completion of six subject groups, an extended essay, Theory of Knowledge, and CAS (Creativity, Activity, Service). Admissions officers at selective universities, particularly Georgetown, NYU, Columbia, and schools with international orientation, view the IB Diploma as a qualitatively different credential from a collection of AP courses. The IB represents a cohesive programme of study; AP represents individual subject exams. For students with broad intellectual interests, strong writing skills, and a preference for structured, essay-intensive academics, the IB Diploma from Harriton can produce a more distinctive application than an AP-heavy transcript from Lower Merion or Radnor. However, for students with a narrow, deep STEM focus, Radnor’s 83% AP culture or Conestoga’s STEM-oriented environment may be more strategically advantageous.

What SAT score do I need from a Main Line high school to be competitive at Ivy League schools?

Because Main Line schools have high average SATs (1340-1380), the contextual boost from a strong score is smaller than at lower-performing schools. For Ivy League competitiveness, aim for 1520+ from any of the four schools. A 1530 from Conestoga (average 1380) represents a 150-point gap; from Lower Merion (average 1340), that same 1530 is a 190-point gap. These are strong signals but not extraordinary in the way a 1400 from a school averaging 1150 would be. This means Main Line students applying to Ivy League schools must supplement strong test scores with distinctive extracurricular profiles, compelling essays, and genuine intellectual depth. Test scores alone, even excellent ones, will not carry a Main Line application at the most selective level.

How do Main Line public schools compare to local private schools like Episcopal Academy and Haverford School for college placement?

Main Line public schools, particularly Conestoga (#2 in PA) and Radnor (#3 in PA), offer academic rigour that rivals or exceeds many elite private schools. The key differences are in support infrastructure and class size: private schools typically provide dedicated college counsellors with caseloads of 30-50 students, while public school counsellors manage 200+. Private schools often curate internship, research, and mentorship networks that public school families must build independently. However, public school students carry the contextual signal of having excelled in a less curated environment, which many admissions officers value. The most competitive Main Line public school applicants are those who supplement their school’s offerings with external enrichment, research mentorships, summer programmes, independent projects, that match the depth private school students receive by default.

Why should Main Line families consider liberal arts colleges like Swarthmore and Haverford?

Despite being located within minutes of the Main Line, Swarthmore and Haverford are almost completely absent from the college interest data at all four schools in this guide. This represents a massive awareness gap. Swarthmore is a top-5 national liberal arts college with an engineering programme, renowned for its intellectual intensity and extraordinarily strong graduate school placement. Haverford is a top-20 liberal arts college with a unique honour code and seminar-based education that produces deeply prepared graduates. Bryn Mawr, also adjacent to the Main Line, is an elite women’s college with PhD production rates that rival Ivy League schools. For students who thrive in small, discussion-based learning environments, and many Main Line students do, these schools offer an educational experience that large research universities cannot replicate, with career outcomes that are equally strong.

Should we invest in private college counselling if our child attends a Main Line school?

For families targeting outcomes beyond the Penn State/Pitt default, the return on private counselling at Main Line schools is high. The gap between what school counsellors can provide, even at well-resourced districts like Lower Merion and Tredyffrin-Easttown, and what competitive admissions requires is significant. School counsellors at these schools manage hundreds of students and cannot provide the individualised strategic planning, essay coaching, school-list development, and early-decision strategy that a dedicated consultant offers. This gap is amplified by competition from private school peers who receive that level of support as a standard feature of their education. A multi-year relationship with an expert consultant who understands the Main Line’s specific competitive dynamics produces consistently better outcomes than relying on school guidance alone. Contact Oriel Admissions to learn about our approach.

What extracurricular activities stand out for Main Line students applying to selective colleges?

At schools where 83-97% of students are described as competitive, generic club participation (NHS, student government, varsity sports without recruitment) does not differentiate. What stands out is depth, specificity, and a narrative that connects activities to identity. Main Line students have unique geographic advantages: proximity to Philadelphia’s world-class research hospitals (for medical/science research), the Tri-College Consortium’s public lectures and library resources, Valley Forge National Historical Park (for history and environmental projects), and Philadelphia’s arts and nonprofit sector. A student who builds a sustained project that leverages these specific resources, independent research at Penn Medicine, an arts initiative connected to Philadelphia’s gallery scene, an environmental study of the Schuylkill River watershed, tells a story that generic extracurriculars cannot. See our guide to building a college application spike for the strategic framework.

Does Radnor’s 83% AP enrollment rate help or hurt my child’s application?

Both. It helps because admissions officers see that Radnor offers an extraordinarily rigorous curriculum and that your child had access to demanding coursework. It hurts because when 83% of the school takes AP courses, AP participation is no longer a differentiator, it is the baseline expectation. A Radnor student who takes six AP courses is doing what most of their classmates do. To stand out from Radnor, students must go beyond AP: independent research, college-level coursework through dual enrolment, published work, competition-level achievement, or entrepreneurial projects. The AP courses demonstrate you can meet the bar; the activities beyond AP demonstrate you can set one.

The Takeaway

The Main Line is not one thing. It is Conestoga’s relentless academic intensity and Harriton’s quiet IB advantage. It is Lower Merion’s national name recognition and Radnor’s AP-saturated, rivalry-fuelled identity. It is Swarthmore fifteen minutes in one direction and UPenn twenty minutes in the other. The families here have access to educational resources and opportunities that most of the country does not, and most of them are leaving those opportunities on the table.

The students who end up at the schools they actually want, rather than the schools they settle for, are almost always the ones whose families: understood their specific school’s strengths and limitations clearly, invested in test preparation early, built distinctive profiles rather than generic resumes, used Philadelphia, explored the liberal arts colleges in their own backyard, and started the strategic conversation before junior year.

That conversation starts here. And it starts now.

Oriel Admissions works with Main Line families at Lower Merion, Conestoga, Radnor, Harriton, and schools throughout the Philadelphia region. Based in Princeton, NJ and New York City, we pair students with dedicated college counsellors, writing coaches, career coaches, and project mentors beginning as early as 8th grade. 93% of our students are admitted to one of their top 3 choices. Contact us to start the conversation.


Latest Posts

Show all

Class of 2030 Acceptance Rates: Every Ivy League School Compared

The Ivy League acceptance rates for the Class of 2030 mark a new chapter in college admissions selectivity. As application volumes surge and admit rates compress, competition for a seat at these eight elite institutions has never been fiercer. This comprehensive guide compares every Ivy League school’s acceptance rate for the Class of 2030, analyzes … Continued

Sign up for our newsletter