Best High Schools in Montgomery County, Pennsylvania

Part of our Best Schools in Montgomery County guide.

Introduction

Montgomery County, Pennsylvania is one of those places that quietly earns a reputation among families who take education seriously. Nestled just outside Philadelphia, the county spans everything from walkable suburban neighborhoods to quieter, more rural communities — and its high schools reflect that range. Whether you're drawn to the prestige of the Main Line, the tight-knit feel of a smaller borough, or the convenience of a growing township, there's likely a school on this list worth putting on your radar.

What makes this county particularly interesting is the competition at the top. Several of these high schools rank among the best not just in Pennsylvania, but nationally — and even the schools further down the list are performing well above state and national averages. If you're a family relocating to the area or simply trying to make sense of your options, here's a closer look at the ten high schools that rose to the top of our rankings.

1. Lower Merion High School — Lower Merion School District, Ardmore

Lower Merion High School sits at the very top of our rankings for Montgomery County, scoring in the 99th percentile in English, 99th in Math, and a perfect 100th in Science — earning an overall ranking in the 100th percentile. This is the kind of school that tends to attract families who want a rigorous, college-preparatory environment with the resources of a well-funded suburban district. Lower Merion is a storied institution with a long history of academic excellence, and Ardmore itself offers an appealing mix of charming commercial districts, easy SEPTA rail access into Philadelphia, and some of the most desirable residential streets on the Main Line. Families who prioritize academic achievement alongside a vibrant community will feel right at home here.

2. Harriton Senior High School — Lower Merion School District, Rosemont

Harriton is the second high school within the Lower Merion School District, and it holds its own impressively — scoring in the 99th percentile in both English and Math, and 98th in Science, for an overall ranking of 99th percentile. Because both Harriton and Lower Merion fall under the same district, families often choose between the two based on where they live within Lower Merion Township, but both schools offer the same caliber of district-wide resources, curriculum, and extracurricular opportunities. Rosemont is a quieter, more residential enclave along the Main Line with easy access to Villanova University and the broader amenities of the area. If you're drawn to the Main Line but want a slightly smaller-feeling campus community, Harriton is well worth considering.

3. Plymouth-Whitemarsh Senior High School — Colonial School District, Plymouth Meeting

Plymouth-Whitemarsh rounds out a genuinely impressive top three, scoring in the 93rd percentile in English, 97th in Math, and 97th in Science — landing at an overall 97th percentile ranking. This school serves Plymouth Meeting, a community that has evolved over the decades from a quiet suburb into a well-connected hub with easy access to major highways, shopping, and employment centers. Plymouth-Whitemarsh tends to appeal to families who want strong STEM performance without committing to the premium housing costs of the Main Line corridor. The Colonial School District has a solid reputation throughout the county, and P-W is its crown jewel at the high school level.

4. Wissahickon Senior High School — Wissahickon School District, Ambler

Wissahickon Senior High School earns its place in the top five with a 95th percentile score in English, 91st in Math, and 87th in Science, coming in at an overall 93rd percentile. The Wissahickon School District has long been respected in Montgomery County, and the high school reflects that — it's the kind of place where academics are taken seriously without feeling overly pressured or hyper-competitive. Ambler itself is one of the more underrated towns in the county: a walkable borough with a genuine downtown, an arts scene, and a mix of longtime residents and newer families who have discovered it as a more affordable alternative to the Main Line. Families who value community character alongside strong academics often find Wissahickon to be a sweet spot.

5. Spring-Ford SHS 9-12 Center — Spring-Ford Area School District, Royersford

Spring-Ford Area High School scores in the 86th percentile in English, 92nd in Math, and an impressive 95th in Science — good for an overall ranking of 92nd percentile. Spring-Ford is one of the larger schools on this list, serving a sprawling district that covers parts of both Montgomery and Chester Counties. That size comes with real advantages: a wide range of course offerings, strong athletic programs, and the kind of elective depth that smaller schools simply can't match. Royersford and the surrounding communities have seen steady growth over the past decade as families look for strong schools with more manageable housing costs than the county's pricier zip codes. If you're looking for a high-performing school in a community that still has room to breathe, Spring-Ford deserves a serious look.

Score Trends — Top 5

Lower Merion High School continues to lead the pack with strong performance across both subjects, as English scores rose from 90 to 95 and Math improved from 80 to 84—solid gains that reflect consistent academic strength. Harriton Senior High School remains a top performer but shows slight softening, with English dropping just one point (93 to 92) and Math declining similarly (82 to 81), suggesting the school may want to investigate what's causing these small dips. Plymouth-Whitemarsh Senior High School holds steady in English at 85 but experienced a one-point Math decline from 77 to 76, indicating relatively stable performance with minor concerns in mathematics. Wissahickon Senior High School presents a mixed picture, as English scores fell two points (87 to 85) while Math showed encouraging growth from 63 to 69—a six-point jump that suggests improving math instruction is paying off. Spring-Ford SHS 9-12 Ctr is the outlier in this group, with English declining three points (81 to 78) while Math surged seven points (63 to 70), pointing to a real need to shore up English instruction even as math programs strengthen.

6. Perkiomen Valley High School — Perkiomen Valley School District, Collegeville

Perkiomen Valley High School comes in at the 93rd percentile in English, 86th in Math, and 90th in Science, earning an overall ranking of 92nd percentile. Collegeville has grown considerably in recent years, partly driven by its proximity to pharmaceutical industry employers and the broader Route 422 corridor. Perkiomen Valley High School reflects that growth — it serves a community that is increasingly attracting well-educated families who want strong schools without paying Main Line prices. The school has a reputation for solid academics and a well-rounded student experience, and the surrounding area offers good parks, newer development, and convenient access to King of Prussia and beyond. Families relocating for work in the life sciences corridor often find Perkiomen Valley to be a natural fit.

7. Souderton Area High School — Souderton Area School District, Montgomery (Borough)

Souderton Area High School scores in the 83rd percentile in English, 88th in Math, and 89th in Science, landing at an overall 89th percentile ranking. Souderton draws from a large, geographically diverse district that includes a mix of small borough communities and more rural townships in the northern part of the county. The high school itself has a strong identity — it's the kind of place where school spirit is genuine and the community has deep roots. For families moving to the more affordable northern reaches of Montgomery County, Souderton represents a school that punches well above what the housing prices in its area might suggest. It's a solid, community-anchored institution with real academic chops.

8. Upper Dublin High School — Upper Dublin School District, Fort Washington

Upper Dublin High School earns a 90th percentile score in English, 76th in Math, and 86th in Science, for an overall ranking of 86th percentile. Upper Dublin is a well-regarded district in the southeastern part of the county, and its high school has a long-standing reputation for producing college-ready graduates. Fort Washington is an established community — tree-lined streets, historical character, and the kind of neighborhood stability that appeals to families looking for somewhere to put down roots. Upper Dublin tends to attract families who appreciate a more traditional suburban environment with a strong sense of community identity. The school consistently performs well, and the district has a track record of supporting students across a range of academic and extracurricular interests.

9. Springfield Township High School — Springfield Township School District, Erdenheim

Springfield Township High School scores in the 82nd percentile in English, 74th in Math, and 90th in Science — landing at an overall 84th percentile. Springfield Township is a smaller, more intimate district than most on this list, and that intimacy carries through to the high school experience. Erdenheim and the surrounding Springfield Township area have a distinctive character: older homes, wooded lots, and proximity to both Chestnut Hill and the Wissahickon Valley Park, making it one of the more naturally beautiful corners of the county. Families who value a close-knit school community where students aren't lost in the crowd — while still wanting solid academic performance — often find Springfield Township High School to be a compelling option.

10. Upper Perkiomen High School — Upper Perkiomen School District, Pennsburg

Upper Perkiomen High School rounds out our top ten with a 79th percentile score in English, 86th in Math, and 70th in Science, earning an overall ranking of 84th percentile. Upper Perkiomen serves one of the more rural corners of Montgomery County, and that geography shapes the character of the school and community. Pennsburg and the surrounding area attract families looking for more land, lower costs, and a quieter pace of life — and the school performs respectably given the district's more limited tax base compared to wealthier parts of the county. Strong math performance in particular stands out, and families who are prioritizing STEM-oriented preparation may find Upper Perkiomen to be a better fit than its overall ranking alone suggests.

Score Trends — #6-10

Perkiomen Valley High School experienced the largest Math gain in this group with a remarkable +13 improvement (54 to 67), though this was offset by a concerning five-point English decline (88 to 83) that suggests resources may be shifting away from language arts. Souderton Area High School shows a similar pattern with English holding relatively steady at around 77-78 while Math climbed impressively from 59 to 66—a seven-point boost that demonstrates real progress in the math department. Upper Dublin High School delivered the most dramatic turnaround of all schools analyzed, with Math skyrocketing 16 points (43 to 59), though this gain came alongside an eight-point English drop (87 to 79) that warrants closer examination. Springfield Township High School is the true success story, posting explosive growth across both subjects with English jumping eight points (72 to 80) and Math surging an astounding 29 points (31 to 60)—the kind of transformative improvement that suggests meaningful intervention in lower-performing grade levels. Upper Perkiomen High School rounds out the list with consistent but moderate improvements in both English (+5, to 75) and Math (+8, to 65), demonstrating steady progress across the board.

How We Rank Schools

Our rankings are based on student performance across three subject areas: English (weighted at 40%), Math (weighted at 40%), and Science (weighted at 20%). We use publicly available state assessment data and convert raw scores into percentile rankings so that schools can be compared meaningfully across districts of different sizes. More recent years are weighted more heavily than older data to reflect current performance trends rather than historical averages. The result is a composite percentile score that tells you, at a glance, how a school stacks up against every other public school in Pennsylvania.

Compare Schools Yourself

Rankings are a useful starting point, but every family's priorities are different. If you want to dig into the numbers yourself — comparing specific schools side by side across subjects and years — head over to our school comparison tool. It's free, and it lets you build the kind of customized picture that a single ranked list can't fully capture.

Top 39 Rankings

Rank	School	District	City	English	Math	Overall
1	Lower Merion High School	Lower Merion SD	Ardmore	99	99	100
2	Harriton Senior High School	Lower Merion SD	Rosemont	99	99	99
3	Plymouth-Whitemarsh Senior High School	Colonial SD	Plymouth Meeting	93	97	97
4	Wissahickon Senior High School	Wissahickon SD	Ambler	95	91	93
5	Spring-Ford SHS 9-12 Ctr	Spring-Ford Area SD	Royersford	86	92	92
6	Perkiomen Valley High School	Perkiomen Valley SD	Collegeville	93	86	92
7	Souderton Area High School	Souderton Area SD		83	88	89
8	Upper Dublin High School	Upper Dublin SD	Fort Washington	90	76	86
9	Springfield Township High School	Springfield Township SD	Erdenheim	82	74	84
10	Upper Perkiomen High School	Upper Perkiomen SD	Pennsburg	79	86	84
11	Lower Moreland High School	Lower Moreland Township SD	Huntingdon Valley	65	88	83
12	North Penn Senior High School	North Penn SD	Lansdale	80	79	82
13	Methacton High School	Methacton SD	Eagleville	73	77	81
14	Hatboro-Horsham Senior High School	Hatboro-Horsham SD	Horsham	66	80	73
15	Abington Senior High School	Abington SD	Abington	70	69	69
16	Jenkintown Middle/High School	Jenkintown SD	Jenkintown	81	58	66
17	Upper Moreland High School	Upper Moreland Township SD	Willow Grove	45	66	56
18	Pottsgrove Senior High School	Pottsgrove SD	Pottstown	52	44	51
19	Upper Merion High School	Upper Merion Area SD	King of Prussia	41	42	46
20	Cheltenham High School	Cheltenham SD	Wyncote	38	37	34
21	Pottstown Senior High School	Pottstown SD	Pottstown	20	16	16
22	Norristown Area High School	Norristown Area SD	Norristown	13	17	14
23	Roosevelt Campus of the Norris	Norristown Area SD		2	0	0
24	South East Youth Dev Center	South East Youth Dev Center		0	0	0
25	Souderton Area SD	Souderton Area SD		0	0	0
26	Pottstown SD	Pottstown SD		0	0	0
27	Perkiomen Valley SD	Perkiomen Valley SD		0	0	0
28	North Penn SD	North Penn SD		0	0	0
29	North Montco Tech Career Cente	North Montco Tech Career Center		0	0	0
30	Norristown Area SD	Norristown Area SD		0	0	0
31	Hatboro-Horsham SD	Hatboro-Horsham SD		0	0	0
32	Eastern Center for Arts & Tech	Eastern Center for Arts & Technology		0	0	0
33	Colonial SD	Colonial SD		0	0	0
34	Central Montco Technical High	Central Montco Technical High School		0	0	0
35	Western Montgomery CTC	Western Montgomery CTC	Limerick	0	0	0
36	Upper Perkiomen SD	Upper Perkiomen SD		0	0	0
37	Upper Merion Area SD	Upper Merion Area SD		0	0	0
38	Upper Dublin SD	Upper Dublin SD		0	0	0
39	Spring-Ford Area SD	Spring-Ford Area SD		0	0	0

Related Guides

• Best Schools in Montgomery County, Pennsylvania
• Best Middle Schools in Montgomery County, Pennsylvania