1
Enrollment
1,239
High
DISTRICT 1,457 · STATE 738
SCHOOL COMMUNITY·LOWER MERION SD·NCES 421416003296
Harriton SHS
600 N Ithan Ave, Rosemont, PA 19010 · (610) 658-3950 · Montgomery County
GRADES 09–12HIGH21-SUBURBREGULAR SCHOOL1,239 STUDENTS
Student : Teacher
10.7:1
116 FTE teachers
DISTRICT 11.1:1 · STATE 12.8:1
Free / Reduced Lunch
16%
193 students
DISTRICT 16% · STATE 75%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Student demographics
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedEnglish Language Arts
92.3%
PA avg 51.1% . -0.5pp since 2023
Math
81.1%
PA avg 43.0% . -0.6pp since 2023
What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 92 of every 100 students at this school read and write at grade level and about 81 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores have held steady since 2023, while math scores have held steady.
Source: PSSA + Keystone. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
86.0%
composite math + reading, all grades
Predicted
70.9%
based on PA schools with similar FRL share
Beats by
+15.1pp
above demographic expectation
What this means: About 86% of students here test proficient in math and reading, compared with the roughly 71% typical for Pennsylvania schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Pennsylvania's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
7-year change
SY 2017-18 vs SY 2024-25Enrollment
1,239
+35 (+3%) vs 2017
Student : Teacher
10.7:1
was 10.8:1
% White
65%
was 77%
% Hispanic
7%
was 5%
% Black
8%
was 7%
% Asian
13%
was 9%
Source: NCES Common Core of Data
About Harriton SHS
Harriton SHS is one of the sprawling secondary schools in Rosemont, Pennsylvania, operated by Lower Merion SD, with 1,239 students on its rolls from grades 9 through 12. By comparison, Pennsylvania's public schools average about 738 students each, so Harriton SHS sits 68% larger than that benchmark.
Across the 11 schools in Lower Merion SD (8,533 students total), Harriton SHS accounts for its share of the district's footprint.
For racial and ethnic makeup, Harriton SHS shows that the largest single group is White, at 65% of enrollment. Other groups include 13% Asian, 8% Black, 7% Hispanic, 6% multiracial.
On the income-and-resources front, The school currently runs with 116 full-time-equivalent teachers, for a student-teacher ratio near 10.7:1. Statewide, the average ratio sits near 12.8:1, putting Harriton SHS tighter than the state norm the norm. An estimated 16% of students are eligible for free or reduced-price lunch, often used as a Title I proxy. That share is below Montgomery County's rate of about 40%.
On a residual basis (actual vs predicted given the student mix), Harriton SHS sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 70.9%; this one delivers 86.0%.
Around the school, the surrounding county (Montgomery County) logs that median household earnings sit near $113,915, 53% of adults hold a bachelor's degree or higher, and census figures put the poverty rate at about 4%. Across Montgomery County's 160 public schools (combined enrollment of about 115,302 students), Harriton SHS is one campus in the mix.
Black Rock MS is the nearest neighboring public school, about 1.3 miles from this campus. Within five miles, there are 8 other public schools. On composite proficiency, Harriton SHS comes 4th of 9 in the immediate cluster, above the nearby-schools average of 80.7%.
The school occupies an outer-ring site.
Over the past 7-year window. Looking back 7 years, enrollment at Harriton SHS has edged up 3%, going from 1,204 students in 2018 to 1,239 in 2025. White enrollment moved from 77% to 65% across the same window.
In the discussion threads here, posts here usually surface around sports schedules, lunch menu changes, and school spirit week. Anyone with firsthand experience at this school can post or comment.
Montgomery County at a glance
View full county profilePopulation
867,573
Census ACS
Median income
$113,915
Household, ACS
Bachelor's+
53%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
160
115,302 students
Quick facts
Related schools
Other schools in Lower Merion SD
- Lower Merion HSHigh · 1,674 students
- Black Rock MSMiddle · 1,077 students
- Bala-Cynwyd MSMiddle · 794 students
- Welsh Valley MSMiddle · 788 students
- Penn Wynne SchElementary · 621 students
- Gladwyne SchElementary · 556 students
Nearby schools
- Black Rock MS1.3 mi · 1,077
- Gladwyne Sch2.1 mi · 556
- Radnor SHS2.3 mi · 1,146
- Conshohocken El Sch2.3 mi · 247
- Radnor El Sch2.4 mi · 554
- Coopertown El Sch2.4 mi · 471
Frequently asked questions
About Harriton SHSHow many students attend Harriton SHS?
Harriton SHS enrolls approximately 1,239 students in grades 09-12.
Is Harriton SHS an elementary, middle, or high school?
Harriton SHS is a high school covering grades 09-12.
How many teachers does Harriton SHS have?
Harriton SHS employs 116 FTE teachers, for a student-to-teacher ratio of 10.7:1.
What is the student diversity at Harriton SHS?
Student demographics at Harriton SHS are roughly 65% White, 7% Hispanic, 8% Black, 13% Asian, 6% Two or more.
Who oversees Harriton SHS?
Harriton SHS is overseen by Lower Merion SD in Montgomery County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.