Boundary Atlas

ZIP code 49032: Centreville, MI

ZIP code 49032 is in Centreville (43% of residents), in St. Joseph County, Michigan. 57% of its residents live outside city limits. It is in Michigan's 5th congressional district. Its state senate district is State Senate District 17; its state house district is State House District 36.

3,033residents (2020 Census)
35.6 sq miland area
1cities and towns
1congressional district
5voting precincts

See it on the mapAll of Michigan

City and county

City or townShare of ZIP residents
Centreville43%

CountyShare of ZIP residents
St. Joseph County100%

Town or county subdivisionShare of ZIP residents
Nottawa township71%
Lockport township14%
Florence township8.0%
Sherman township3.8%
Colon township3.3%

Congressional district

Congressional districtShare of ZIP residents
Michigan's 5th congressional district (MI-05)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 17100%

State house districtShare of ZIP residents
State House District 36100%

Voting precincts

5 voting precincts overlap ZIP 49032. 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:49032")

ZIP 49032 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.