Boundary Atlas

ZIP code 60403: Crest Hill, IL

ZIP code 60403 is in Crest Hill, in Will County, Illinois. It is in Illinois's 14th congressional district. Its state senate districts are State Senate District 49 (97%) and State Senate District 43 (2.5%); its state house districts are State House District 98 (97%) and State House District 85 (2.5%).

17,667residents (2020 Census)
4.9 sq miland area
1cities and towns
1congressional district
11voting precincts

See it on the mapAll of Illinois

City and county

City or townShare of ZIP residents
Crest Hill100%

CountyShare of ZIP residents
Will County100%

Town or county subdivisionShare of ZIP residents
Lockport township79%
Joliet township8.5%
Plainfield township7.0%
Troy township5.2%

Congressional district

Congressional districtShare of ZIP residents
Illinois's 14th congressional district (IL-14)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 4997%
State Senate District 432.5%

State house districtShare of ZIP residents
State House District 9897%
State House District 852.5%

Voting precincts

11 voting precincts overlap ZIP 60403. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:60403")

ZIP 60403 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.