Boundary Atlas

ZIP code 48878: Rosebush, MI

ZIP code 48878 is in Rosebush (22% of residents), in Isabella County, Michigan. 78% of its residents live outside city limits. 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 92.

1,586residents (2020 Census)
32.1 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
Rosebush22%

CountyShare of ZIP residents
Isabella County100%

Town or county subdivisionShare of ZIP residents
Isabella township78%
Vernon township15%
Denver township6.9%
Gilmore township0.4%
Nottawa townshipland only

Congressional district

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

Members of Congress

OfficeMemberContact
U.S. Representative (MI-02)John R. Moolenaar (R)202-225-3561
U.S. SenatorElissa Slotkin (D)202-224-4822
U.S. SenatorGary C. Peters (D)202-224-6221 · contact form

Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).

State legislative districts

State senate districtShare of ZIP residents
State Senate District 34100%

State house districtShare of ZIP residents
State House District 92100%

Voting precincts

5 voting precincts overlap ZIP 48878. 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:48878")

ZIP 48878 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.