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SCHOOL COMMUNITY·MT LEBANON SD·NCES 421611000340

Jefferson Middle School

21 Moffett St, Pittsburgh, PA 15243 · (412) 344-2120 · Allegheny County
GRADES 06–08MIDDLE21-SUBURBREGULAR SCHOOL621 STUDENTS
Enrollment
621
Middle
DISTRICT 641 · STATE 594
Student : Teacher
11.4:1
54 FTE teachers
DISTRICT 11.9:1 · STATE 13.2:1
Free / Reduced Lunch
18%
109 students
DISTRICT 17% · STATE 75%
Community
1
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 621835%
Grade 720433%
Grade 819932%
Student demographics
32%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 33% · STATE 59% · US 70%
White
51082%
DISTRICT 81% · STATE 60% · US 43%
Hispanic
254%
DISTRICT 4% · STATE 16% · US 30%
Black
152%
DISTRICT 2% · STATE 14% · US 15%
Asian
467%
DISTRICT 7% · STATE 5% · US 6%
Two+
254%
DISTRICT 5% · STATE 5% · US 5%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
34355%
Female
27845%

School pathway

Students here typically continue to
Jefferson Middle SchoolMt Lebanon SHS
Based on grade levels within Mt Lebanon SD. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

PSSA + Keystone 2024-25 . % Proficient or Advanced
English Language Arts
84.7%
PA avg 51.1% . +0.4pp since 2023
Math
66.5%
PA avg 43.0% . +0.4pp since 2023

What this means: On the PSSA + Keystone, Pennsylvania's statewide test, about 85 of every 100 students at this school read and write at grade level and about 67 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.

PSSA + Keystone results by year

School yearEnglish Language ArtsMath
2024-2584.7%66.5%
2023-2484.3%66.1%
% Proficient or Advanced, all students and all tested grades.
Source: PSSA + Keystone. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
76.6%
composite math + reading, all grades
Predicted
70.1%
based on PA schools with similar FRL share
Beats by
+6.5pp
above demographic expectation

What this means: About 77% of students here test proficient in math and reading, compared with the roughly 70% 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 →

Where Jefferson Middle School ranks

Among middle schools
MeasureThis schoolIn PennsylvaniaIn Allegheny County
State test proficiency
ranked highest first
76.6%#10 of 479#5 of 47
Math proficiency
ranked highest first
66.5%#27 of 513#10 of 51
Reading proficiency
ranked highest first
84.7%#4 of 513#3 of 51
Enrollment
ranked largest first
621#222 of 522#23 of 51
Students per teacher
ranked fewest first
11.4:1#88 of 486#10 of 46
Diversity index
ranked most diverse first
31.6%#304 of 486#32 of 46
Enrollment change since 2017-18
ranked steepest decline first
-11.4%#155 of 332#15 of 27
Ranked against other public middle schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list.

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
621
-80 (-11%) vs 2017
Student : Teacher
11.4:1
was 13.7:1
% White
82%
was 87%
% Hispanic
4%
was 2%
% Black
2%
was 1%
% Asian
7%
was 6%
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree or reduced lunch
2024-2562154.311.4:118% (109)
2023-2460154.811.0:118% (109)
2022-2362255.211.3:117% (103)
2017-1870151.113.7:19% (66)
Source: NCES Common Core of Data. Rows are the federal collections on file for Jefferson Middle School.

About Jefferson Middle School

Jefferson Middle School is a middle school located in Pittsburgh, Pennsylvania, in Allegheny County. The school had 621 students in grades 6 through 8 in 2024-25.

Jefferson Middle School belongs to Mt Lebanon SD, a district of 10 schools and 5,477 students.

The student body at Jefferson Middle School is 82% White. The rest of enrollment is 7% Asian, 4% Hispanic, 4% multiracial, and 2% Black. The school's diversity index is 32%, meaning two students picked at random have a 32% chance of belonging to different racial or ethnic groups.

The count of teachers at Jefferson Middle School is 54.3 full-time equivalents, for a ratio of 11.4:1. That is lower than the 13.2:1 average for middle schools in Pennsylvania. The school counts 109 students as eligible for free or reduced-price lunch, or 18%. Across public schools in Allegheny County, the average is 54%.

The school's average proficiency rate on state tests is 76.6%. For its free or reduced-price lunch share, the predicted value is 70.1%.

Allegheny County has these Census figures: the median household income is $78,548, a bachelor's degree or higher is held by about 46% of adults, and the share of residents below the poverty line is 7%. Allegheny County is home to 277 public schools and about 141,392 public school students.

Jefferson Elementary School is the public school closest to Jefferson Middle School, less than a tenth of a mile away. There are at least 8 other public schools within five miles. Ranking the closest schools with test data puts Jefferson Middle School at 7th of 9.

NCES describes the area around Jefferson Middle School as Suburb: Large, meaning in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more.

Enrollment at Jefferson Middle School declined 11% between 2017-18 and 2024-25, from 701 to 621 students. The White share of enrollment fell from 87% to 82% over the same period. The ratio of students to teachers went from 13.7:1 to 11.4:1 over the same years.

Parents and students can post about sports schedules, lunch menus, and spirit week at Jefferson Middle School. Questions from prospective families are welcome too.

Allegheny County at a glance

View full county profile
Population
1,238,177
Census ACS
Median income
$78,548
Household, ACS
Bachelor's+
46%
Adults 25+
Poverty rate
7%
Below federal line
Schools in county
277
141,392 students

Quick facts

School name
Jefferson Middle School
District
Mt Lebanon SD
Address
21 Moffett St, Pittsburgh, PA 15243
Phone
(412) 344-2120
County
Allegheny County
Level
Middle
Grade range
06–08
Total enrollment
621
Teachers (FTE)
54
Student–teacher ratio
11.4:1
Free/Reduced lunch
109 (18%)
Locale
21-Suburb: Large
NCES ID
421611000340
Charter school
No
Virtual school
No

Related schools

Other schools in Mt Lebanon SD
Other schools in Pittsburgh
Nearby schools

Frequently asked questions

About Jefferson Middle School
How many students attend Jefferson Middle School?
Jefferson Middle School enrolls approximately 621 students in grades 06-08.
What grades does Jefferson Middle School serve?
Jefferson Middle School serves grades 06-08.
What is the student-teacher ratio at Jefferson Middle School?
The student-to-teacher ratio at Jefferson Middle School is approximately 11.4:1 (54 FTE teachers).
What is the racial breakdown of students at Jefferson Middle School?
At Jefferson Middle School, the student body is approximately 82% White, 4% Hispanic, 2% Black, 7% Asian, 4% Two or more.
Who oversees Jefferson Middle School?
Jefferson Middle School is overseen by Mt Lebanon SD in Allegheny County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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