Harriton SHS
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedBeatsExpectations
Demographically-adjusted score · methodology7-year change
SY 2017-18 vs SY 2024-25About 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
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