ZIP code 55921: Caledonia, MN
ZIP code 55921 is in Caledonia (59% of residents), in Houston County, Minnesota. 41% of its residents live outside city limits. It is in Minnesota's 1st congressional district. Its state senate district is State Senate District 26; its state house district is State House District 26B.
See it on the mapAll of Minnesota
City and county
| City or town | Share of ZIP residents |
|---|---|
| Caledonia | 59% |
| County | Share of ZIP residents |
|---|---|
| Houston County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Caledonia city | 59% |
| Caledonia township | 13% |
| Mayville township | 7.6% |
| Union township | 4.8% |
| Wilmington township | 4.1% |
| Sheldon township | 3.8% |
| Winnebago township | 3.7% |
| Crooked Creek township | 2.0% |
| Jefferson township | 1.9% |
| Mound Prairie township | 0.2% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Minnesota's 1st congressional district (MN-01) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MN-01) | Brad Finstad (R) | 202-225-2472 | 100% |
| U.S. Senator | Amy Klobuchar (D) | 202-224-3244 · contact form | statewide |
| U.S. Senator | Tina Smith (D) | 202-224-5641 · contact form | statewide |
| State Senator (State Senate District 26) | Jeremy Miller (R) | 100% | |
| State Representative (State House District 26B) | Greg Davids (R) | 100% |
Elected under MN's previous legislative map; the district's lines changed for 2026.
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Caledonia website: http://caledonia.govoffice.com
- Caledonia laws: search for the Caledonia, Minnesota code of ordinances
- Houston County laws: search for the Houston County, Minnesota code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 26 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 26B | 100% |
Voting precincts
11 voting precincts overlap ZIP 55921. 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:55921")
ZIP 55921 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.