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Naperville Community Unit District 203, Illinois

Naperville Community Unit District 203 is a unified school district in DuPage County and Will County, Illinois, for grades Pre-K to 12. About 96,944 people live in it (2020–2024 estimate). It covers 29.7 sq mi (76.9 km²) of land.

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Naperville Community Unit District 203 in Illinois
Lisle Community Unit School District 202Indian Prairie Community Unit School District 204
Naperville Community Unit District 203 and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
96,944 ± 1,774
Grades
Pre-K to 12
Type
Unified school district
Counties
DuPage County88% of the district’s landWill County12% of the district’s land
Land area
29.7 sq mi (76.9 km²)
Median household income
$151,595 ± $5,408
Median home value
$520,600 ± $16,321
Water area
0.69 sq mi (1.79 km²)
State
Illinois
Census code (GEOID)
1727710
Coordinates (central point)
41.766353, -88.125885
Check a point in the school district finder

These coordinates mark a central point for the district, not a school or an address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Towns, townships and communities in Naperville Community Unit District 203, largest first

  1. Naperville (city)150,692 people
  2. Lisle Township118,895 people

A town, township, city or borough is listed when at least half its land is in the district; a community, when its central point is. Near a district line, an address can belong to the district next door.

Bordering unified school districts, nearest first

  1. Lisle Community Unit School District 2023.4 mi northeast
  2. Indian Prairie Community Unit School District 2044.5 mi west
  3. Community Unit School District 2005.7 mi north
  4. Valley View Community Unit School District 365U7.2 mi south

These share a boundary with Naperville Community Unit District 203. Distances are straight lines between central points.

Before using this answer for enrollment

A district boundary doesn’t decide which school a student attends; the district’s attendance zones and rules do. Confirm the full address and grade with Naperville Community Unit District 203 before you rely on it.

See its schools and enrollment on NCES ↗

Find the school district where you are now or find your town or township.