Boundary Atlas

ZIP code 48631: Kawkawlin, MI

ZIP code 48631 is in Bay County, Michigan, outside any city or Census-designated place. It is in Michigan's 8th congressional district. Its state senate district is State Senate District 35; its state house district is State House District 96.

4,260residents (2020 Census)
32.9 sq miland area
0cities and towns
1congressional district
4voting precincts

See it on the mapAll of Michigan

City and county

Outside any city or Census-designated place.


CountyShare of ZIP residents
Bay County100%

Town or county subdivisionShare of ZIP residents
Kawkawlin township73%
Beaver township18%
Monitor charter township8.5%

Congressional district

Congressional districtShare of ZIP residents
Michigan's 8th congressional district (MI-08)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MI-08)Kristen McDonald Rivet (D)202-225-3611100%
U.S. SenatorElissa Slotkin (D)202-224-4822statewide
U.S. SenatorGary C. Peters (D)202-224-6221 · contact formstatewide
State Senator (State Senate District 35)Chedrick Greene (Democratic)100%
State Representative (State House District 96)Timmy Beson (R)100%

Elected under MI's previous legislative map; the district's lines changed for 2026.

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 35100%

State house districtShare of ZIP residents
State House District 96100%

Voting precincts

4 voting precincts overlap ZIP 48631. Map them, with each precinct's share of the ZIP's residents.

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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:48631")

ZIP 48631 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.