Jefferson Jr High School
Public
Middle Grades 6–8
Part of Naperville CUSD 203
1525 N Loomis St, Naperville, IL 60563 · (630) 420-6363
Community ratings
Not rated yetBe the first neighbor to rate this school — an overall score plus Teachers, Communication, Safety and Activities.
Academic performance
Math proficiency36%
State average 25.9%
Reading / language arts43%
State average 30.7%
EDFacts via Urban Institute Education Data Portal (SY2020-21)
At a glance
832Students enrolled
12:1Student–teacher ratio
29%Free / reduced lunch
CitySetting
Regular SchoolSchool type
Enrollment by grade
Grade 6258
Grade 7313
Grade 8261
Students
White · 47%392
Hispanic · 25%205
Asian · 16%131
Black · 7%58
Two or more races · 5%42
American Indian/Alaska Native · 0%3
Counts as reported to NCES; percentages are of students with a reported race/ethnicity.
Enrollment · last 5 years
810’20
828’21
817’22
849’23
832’24
Location
1525 N Loomis St Naperville
Neighbor reviews
Sign in to rate this school.
School facts from the U.S. Department of Education (NCES), 2024-2025 school year. Academic scores from the EDFacts via Urban Institute Education Data Portal (SY2020-21). Community ratings and reviews reflect neighbor opinions, not an official measure of school quality.