Community High School District 99, Illinois
Community High School District 99 is a secondary (high school) district in DuPage County, Illinois, for grades 9–12. About 111,937 people live in it (2020–2024 estimate). It covers 30.9 sq mi (80 km²) of land.
- Population, 2020–2024 estimate
- 111,937 ± 1,728
- Grades
- 9–12
- Type
- Secondary (high school) district
- County
- DuPage County
- Land area
- 30.9 sq mi (80 km²)
- Median household income
- $103,345 ± $3,174
- Median home value
- $405,600 ± $7,637
- Water area
- 0.55 sq mi (1.42 km²)
- State
- Illinois
- Census code (GEOID)
- 1712570
- Coordinates (central point)
- 41.775413, -88.020427
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 Community High School District 99, largest first
- Downers Grove (village)50,054 people
- Woodridge (village)33,941 people
- Darien (city)21,879 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 secondary (high school) districts, nearest first
- Hinsdale Township High School District 864.0 mi east
- Lemont Township High School District 2107.0 mi south
- Glenbard Township High School District 878.6 mi north
- DuPage High School District 888.9 mi north
These share a boundary with Community High School District 99. 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 Community High School District 99 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.