Boundary Atlas

ZIP code 53404: Racine, WI

ZIP code 53404 is in Racine (84% of residents) and Caledonia (15%), in Racine County, Wisconsin. It is in Wisconsin's 1st congressional district. Its state senate district is State Senate District 21; its state house districts are Assembly District 62 (93%) and Assembly District 63 (7.0%).

15,532residents (2020 Census)
4.9 sq miland area
3cities and towns
1congressional district
15voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Racine84%
Caledonia15%
Mount Pleasant0.3%

CountyShare of ZIP residents
Racine County100%

Town or county subdivisionShare of ZIP residents
Racine city84%
Caledonia village15%
Mount Pleasant village0.3%

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 1st congressional district (WI-01)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 21100%

State house districtShare of ZIP residents
Assembly District 6293%
Assembly District 637.0%

Voting precincts

15 voting precincts overlap ZIP 53404. 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:53404")

ZIP 53404 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.