Boundary Atlas

ZIP code 49009: Oshtemo, MI

ZIP code 49009 is in Kalamazoo (4.4% of residents), in Kalamazoo County (99%) and Van Buren County (0.9%), Michigan. 96% of its residents live outside city limits. It is in Michigan's 4th congressional district. Its state senate districts are State Senate District 19 (99%) and State Senate District 20 (0.9%); its state house districts are State House District 40 (78%), State House District 42 (17%), State House District 41 (3.5%) and State House District 39 (0.9%).

47,188residents (2020 Census)
102.2 sq miland area
1cities and towns
1congressional district
25voting precincts

See it on the mapAll of Michigan

City and county

City or townShare of ZIP residents
Kalamazoo4.4%

CountyShare of ZIP residents
Kalamazoo County99%
Van Buren County0.9%

Town or county subdivisionShare of ZIP residents
Oshtemo charter township50%
Texas charter township31%
Cooper charter township7.3%
Alamo township6.6%
Kalamazoo city4.4%
Almena township0.9%

Congressional district

Congressional districtShare of ZIP residents
Michigan's 4th congressional district (MI-04)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1999%
State Senate District 200.9%

State house districtShare of ZIP residents
State House District 4078%
State House District 4217%
State House District 413.5%
State House District 390.9%

Voting precincts

25 voting precincts overlap ZIP 49009. 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:49009")

ZIP 49009 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.