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Thomas Jefferson HS
School pathway
Test scores
PSSA + Keystone 2024-25 . % Proficient or AdvancedWhat 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 69 of 100 do math at grade level. Across all Pennsylvania schools, those numbers are about 51 and 43. Reading and writing scores are up about 5 points since 2023, while math scores are up about 10 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 77% of students here test proficient in math and reading, compared with the roughly 67% 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%.
7-year change
SY 2017-18 vs SY 2024-25About Thomas Jefferson HS
Set in Jefferson Hills, Pennsylvania, Thomas Jefferson HS is an average-sized four-year high school, overseen by West Jefferson Hills SD. It enrolls 1,041 students across grades 9 through 12. Compared to the state average of about 738 students per school, that is 41% larger than typical.
Thomas Jefferson HS is one of 5 schools operated by West Jefferson Hills SD, a district that serves 3,501 students overall.
In terms of who attends, Thomas Jefferson HS reports that the student body is overwhelmingly White (86%); the rest is composed of 7% Asian, 3% Black, 2% Hispanic. The wider county runs roughly 76% White, putting the school's mix meaningfully more White than the area baseline.
In terms of school funding signals, On paper, Thomas Jefferson HS has 70 full-time-equivalent teachers, translating to a class-load average of around 15.0:1. The state averages around 12.8:1, so this campus is higher than the state norm typical. Around 24% of the student body qualifies for free or reduced-price meals, a commonly cited indicator of low-income enrollment. By comparison, Allegheny County runs at roughly 54%, so the school's eligibility rate is below the surrounding baseline.
Adjusting for the school's free-and-reduced-lunch share, Thomas Jefferson HS sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 67.4%; this one delivers 77.1%.
Zooming out to the county, Allegheny County reports that median household income runs about $78,548, about 46% of the adult population holds a bachelor's degree or above, and roughly 7% of residents live below the federal poverty line. Thomas Jefferson HS is one of 277 public schools in Allegheny County (combined enrollment of about 141,392 students).
Nearest neighbor: Jefferson Hills Intermediate Sch, around 0.4 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Thomas Jefferson HS at 1st of 6; the average score across the group is 57.2%.
Geographically, the school is in an outer-ring area.
Looking at the recent track record. Thomas Jefferson HS's enrollment has edged up 17% since 2018, when it stood at 889 (now 1,041). The White share of enrollment ticked down from 93% to 86% over that span. The student-to-teacher ratio grew from 13.7:1 in 2018 to 15.0:1 today.
On this page, the feed for Thomas Jefferson HS typically covers school events, parent volunteer needs, and clubs. Members of the school community can share what they know.
Allegheny County at a glance
View full county profileQuick facts
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