Naperville CUSD 203 serves 15,899 students across 22 schools in DuPage County, Illinois. The district experienced a 2.1% enrollment decline from the prior year, though this follows a period of relative stability. With a student-teacher ratio of 13.5:1 and 1,176.89 teachers, the district maintains moderate class sizes.
Academic performance significantly exceeds state averages. Math proficiency stands at 70.5% compared to the Illinois average of 37.3%, while reading proficiency reaches 81.9% versus 51.9% statewide. The graduation rate of 96.1% substantially surpasses the state average of 88.0%, with a dropout rate of only 0.8%.
Student demographics reflect moderate economic and linguistic diversity. Economically disadvantaged students comprise 17.1% of enrollment, English learners represent 9.4%, and students with disabilities account for 19.6%. Racial composition is 57.2% White, 18.9% Asian, 12.3% Hispanic, and 4.7% Black. Chronic absenteeism at 15.4% presents an ongoing operational consideration.
The district's financial position reflects its affluent suburban context. Per-pupil spending of $20,461 exceeds the state average of $18,095, supported by a $411.5 million total budget. Revenue is heavily dependent on local sources at 90.4%, with minimal state (6.8%) and federal (2.8%) contributions, indicating a property-wealth-dependent funding structure typical of Illinois districts.
This summary was generated by AI from public data sources. Last updated May 4, 2026.
This data is aggregated from state and federal public datasets. While we believe it is accurate, we always recommend confirming it on the corresponding state or federal site. See Data Notes for more.
Total Students
15,899
Schools
22
Per-Pupil Spending
$20,461
Data Sources: NCES Common Core of Data, NCES F-33 Finance Survey, EDFacts
Federal Data Year: 2024-25
State Data Year: 2024-25
Note: Some data may be unavailable for certain districts or years. Proficiency rates reflect state-specific assessment standards.
Math Proficiency
70.5%
Staff counts are Full-Time Equivalent (FTE) from NCES 2024-25 data.
Percentage of students meeting or exceeding standards (Grades 3-8)
Illinois EBF formula measures what percentage of adequate funding a district receives.