Small Town · Illinois

Gopal Lalmalani

Mayor (Ceremonial) of Oak Brook, IL

NonpartisanElected 2026Next election 2031

Demographics

Census data for the city

Population: 8,702
Median household income: $158,663
Median age: 52.5
Land area: 7.98 sq mi
Population density: 1,090.5 per sq mi
County: DuPage County
Metro area: Chicago-Naperville-Elgin, IL-IN

City government

Budget and contact

Annual budget: ~$30M
City hall phone: (630) 368-5000
Official website: www.oak-brook.org →

For developers

Fetch this same data via API:

$ curl https://api.civicgrid.org/cities?state=IL \

-H "Authorization: Bearer cg_live_..."

Get API key →