Boundary Atlas

ZIP code 49342: Martiny, MI

ZIP code 49342 is in Mecosta County, Michigan, outside any city or Census-designated place. It is in Michigan's 2nd congressional district. Its state senate district is State Senate District 34; its state house district is State House District 100.

1,527residents (2020 Census)
39.5 sq miland area
0cities and towns
1congressional district
5voting precincts

See it on the mapAll of Michigan

City and county

Outside any city or Census-designated place.


CountyShare of ZIP residents
Mecosta County100%

Town or county subdivisionShare of ZIP residents
Martiny township44%
Colfax township38%
Chippewa township12%
Morton township4.7%
Austin township2.5%

Congressional district

Congressional districtShare of ZIP residents
Michigan's 2nd congressional district (MI-02)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 34100%

State house districtShare of ZIP residents
State House District 100100%

Voting precincts

5 voting precincts overlap ZIP 49342. 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:49342")

ZIP 49342 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.