Boundary Atlas

ZIP code 48849: Lake Odessa, MI

ZIP code 48849 is in Lake Odessa (34% of residents), in Ionia County (82%), Barry County (16%) and Eaton County (2.7%), Michigan. 66% of its residents live outside city limits. It is in Michigan's 2nd congressional district. Its state senate districts are State Senate District 18 (90%), State Senate District 33 (7.8%) and State Senate District 21 (2.7%); its state house district is State House District 78.

5,904residents (2020 Census)
83.7 sq miland area
1cities and towns
1congressional district
9voting precincts

See it on the mapAll of Michigan

City and county

City or townShare of ZIP residents
Lake Odessa34%

CountyShare of ZIP residents
Ionia County82%
Barry County16%
Eaton County2.7%

Town or county subdivisionShare of ZIP residents
Odessa township65%
Woodland township12%
Campbell township7.5%
Sebewa township5.4%
Carlton township3.2%
Sunfield township2.7%
Berlin township2.4%
Boston township0.8%

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 1890%
State Senate District 337.8%
State Senate District 212.7%

State house districtShare of ZIP residents
State House District 78100%

Voting precincts

9 voting precincts overlap ZIP 48849. 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:48849")

ZIP 48849 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.