Jefferson Jr High School

Regular School · Naperville, IL

Jefferson Jr High School is a regular school school in Naperville, Illinois, serving grades 06–08 with 832 students enrolled (SY 2024-2025). The student-teacher ratio is 12.3:1.

Level

Middle

Grades

06 – 08

Enrollment

832

Teachers (FTE)

67.8

Student–Teacher Ratio

12.3:1

Status

Open

Lunch Program Participation

Yes participating without using any Provision or the CEO

Student Demographics (SY 2024-2025)

Race / Ethnicity	Students	Share
White	392	47%
Hispanic/Latino	205	25%
Asian	131	16%
Black or African American	58	7%
Two or more races	42	5%
American Indian / Alaska Native	3	0%
Not Specified	1	0%
Total enrollment	832	402M / 429F

English Language Learners: 97 (12% of enrollment) · SY 2021–22

Academic Performance (SY 2021-2022)

Metric	This School	State Avg	Tested
Math Proficiency	36.0% +8.3pp	27.7%	684
Reading Proficiency	43.0% +10.3pp	32.7%	696

Source: EDFacts, SY 2020–2021. Suppressed values (e.g. <=10%) indicate fewer than the minimum reportable threshold.

Stanford Achievement Estimate

Pooled score across SY 2009–2022 (grades 3–8), expressed in grade levels relative to the national average. Positive = above average.

Overall (Math + ELA)

+0.52 grade levels

Math

-0.13 grade levels

Programs & Discipline

Gifted & Talented

None offered

158 students enrolled

Out-of-School Suspensions

1.6% of enrollment · SY 2021–22

Chronically Absent

138

16.6% of enrollment · SY 2019–20

Source: Civil Rights Data Collection (CRDC), Office for Civil Rights & EDFacts.

Lunch Program (SY 2024-2025)

Category	Students	% of School
Total enrollment (est.)	832	100%

Contact & Location

1525 N Loomis St

Naperville, IL 60563

Phone: (630)420-6363

http://www.naperville203.org/jjhs

District

Naperville CUSD 203

Per-pupil expenditure: $23,997

District enrollment: 16,073

Other Schools in District

Beebe Elem School Elementary
Ellsworth Elem School Elementary
Elmwood Elem School Elementary
Highlands Elem School Elementary
Kingsley Elementary School Elementary
Maplebrook Elem School Elementary
Meadow Glens Elementary School Elementary
Mill Street Elem School Elementary

View all 21 schools →

Related Data

Neighborhood demographics (ZIP 60563) → CensusDepth.com
Illinois population & income data → CensusDepth.com
Illinois teacher salaries → WageDepth.com

NCES ID

172771002933

Data sources: NCES CCD SY 2024-2025 (directory, staff, lunch), EDFacts SY 2020-21 (assessments), CRDC SY 2021-22 (programs & discipline), SEDA v6.0 (achievement estimates). Updated annually. NCES CCD