Boundary Atlas

ZIP code 56540: Fertile, MN

ZIP code 56540 is in Fertile (42% of residents), in Polk County (90%) and Norman County (9.6%), Minnesota. 58% of its residents live outside city limits. It is in Minnesota's 7th congressional district. Its state senate district is State Senate District 1; its state house district is State House District 1B.

1,919residents (2020 Census)
173.7 sq miland area
1cities and towns
1congressional district
10voting precincts

See it on the mapAll of Minnesota

City and county

City or townShare of ZIP residents
Fertile42%

CountyShare of ZIP residents
Polk County90%
Norman County9.6%

Town or county subdivisionShare of ZIP residents
Fertile city42%
Garfield township27%
Garden township7.9%
Liberty township5.6%
Godfrey township4.8%
Bear Park township4.5%
Sundal township3.8%
Woodside township2.8%
Spring Creek township1.2%
Onstad township0.4%

Congressional district

Congressional districtShare of ZIP residents
Minnesota's 7th congressional district (MN-07)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1100%

State house districtShare of ZIP residents
State House District 1B100%

Voting precincts

10 voting precincts overlap ZIP 56540. 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:56540")

ZIP 56540 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.