Jefferson MS

Jefferson MS, an average-sized middle school in Pittsburgh, Pennsylvania, part of Mt Lebanon SD, caters to 621 students, covering grades 6 through 8.

Mt Lebanon SD comprises 10 schools with combined enrollment of 5,477 students; Jefferson MS is among them.

In terms of who attends, Jefferson MS lists that the student body is overwhelmingly White (82%). Beyond that, the school reports 7% Asian, 4% Hispanic, 4% multiracial, 2% Black.

In terms of school funding signals, Jefferson MS reports 54 full-time-equivalent teachers, putting the student-to-teacher ratio at about 11.4:1. That figure is tighter than the state norm's 13.2:1 average. About 18% of enrolled students meet the income threshold for free or reduced-price lunch, often used as a Title I proxy. 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, Jefferson MS performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 70.1%, the actual is 76.6%, a residual of +6.5 points.

Zooming out to the county, community-level numbers for Allegheny County indicate median household earnings sit near $78,548, about 46% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 7%. Jefferson MS is one of 277 public schools in Allegheny County (combined enrollment of about 141,392 students).

Nearest neighbor: Jefferson El Sch, around 0.1 miles off. Counting just inside five miles, 8 other public schools cluster around Jefferson MS. Among the 9 schools in that immediate cluster with test data (this one included), Jefferson MS ranks 7th on composite proficiency, below the local average of 81.2%.

The campus sits in a residential setting.

Over the past 7-year window. Jefferson MS's enrollment has declined 11% since 2018, when it stood at 701 (now 621). The White share of enrollment edged down from 87% to 82% over that span. Class-load math has fell: from 13.7:1 in 2018 to 11.4:1 in 2025.

On allk12, the page collects discussion, questions, and updates around school events, parent volunteer needs, and clubs. The community welcomes input from current and former families.