Boundary Atlas

ZIP code 65601: Union, MO

ZIP code 65601 is in Aldrich (8.2% of residents), in Polk County (77%), Dade County (21%) and Cedar County (2.2%), Missouri. 92% of its residents live outside city limits. It is in Missouri's 4th congressional district. Its state senate districts are State Senate District 28 (79%) and State Senate District 20 (21%); its state house districts are State House District 128 (77%) and State House District 127 (23%).

923residents (2020 Census)
52.8 sq miland area
1cities and towns
1congressional district
6voting precincts

See it on the mapAll of Missouri

City and county

City or townShare of ZIP residents
Aldrich8.2%

CountyShare of ZIP residents
Polk County77%
Dade County21%
Cedar County2.2%

Town or county subdivisionShare of ZIP residents
Union township50%
North Morgan township19%
Jackson township15%
Wishart township7.8%
Southwest Marion township4.3%
Madison township2.2%
South Morgan township1.5%

Congressional district

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 2879%
State Senate District 2021%

State house districtShare of ZIP residents
State House District 12877%
State House District 12723%

Voting precincts

6 voting precincts overlap ZIP 65601. 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:65601")

ZIP 65601 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.