ZIP code 56557: Mahnomen, MN
ZIP code 56557 is in Mahnomen (44% of residents), Riverland (10%), Beaulieu (3.6%), West Roy Lake (2.0%) and Roy Lake (1.1%), in Mahnomen County (97%), Clearwater County (1.7%) and Norman County (1.1%), Minnesota. 39% of its residents live outside city limits. It is in Minnesota's 8th congressional district (99%) and Minnesota's 7th congressional district (1.1%). Its state senate districts are State Senate District 2 (99%) and State Senate District 1 (1.1%); its state house districts are State House District 2B (99%) and State House District 1B (1.1%).
See it on the mapAll of Minnesota
City and county
| City or town | Share of ZIP residents |
|---|---|
| Mahnomen | 44% |
| Riverland | 10% |
| Beaulieu | 3.6% |
| West Roy Lake | 2.0% |
| Roy Lake | 1.1% |
| Midway | 0.7% |
| The Ranch | 0.5% |
| County | Share of ZIP residents |
|---|---|
| Mahnomen County | 97% |
| Clearwater County | 1.7% |
| Norman County | 1.1% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Mahnomen city | 44% |
| Pembina township | 22% |
| Chief township | 6.2% |
| Marsh Creek township | 4.5% |
| Twin Lakes township | 4.5% |
| Beaulieu township | 4.4% |
| La Garde township | 4.0% |
| Rosedale township | 3.8% |
| Clover township | 2.6% |
| La Prairie township | 1.7% |
| Popple Grove township | 1.3% |
| Fossum township | 0.5% |
| Gregory township | 0.4% |
| Waukon township | 0.3% |
| Flom township | 0.2% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Minnesota's 8th congressional district (MN-08) | 99% |
| Minnesota's 7th congressional district (MN-07) | 1.1% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MN-08) | Pete Stauber (R) | 202-225-6211 | 99% |
| U.S. Representative (MN-07) | Michelle Fischbach (R) | 202-225-2165 | 1.1% |
| 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 2) | Steve Green (R) | 99% | |
| State Senator (State Senate District 1) | Mark Johnson (R) | 1.1% | |
| State Representative (State House District 2B) | Matt Bliss (R) | 99% | |
| State Representative (State House District 1B) | Steve Gander (R) | 218-773-3447 | 1.1% |
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
- Mahnomen laws: search for the Mahnomen, Minnesota code of ordinances
- Riverland laws: search for the Riverland, Minnesota code of ordinances
- Beaulieu laws: search for the Beaulieu, Minnesota code of ordinances
- Mahnomen County website: http://www.co.mahnomen.mn.us/
- Mahnomen County laws: search for the Mahnomen County, Minnesota code of ordinances
- Clearwater County website: http://www.co.clearwater.mn.us
- Clearwater County laws: search for the Clearwater County, Minnesota code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 2 | 99% |
| State Senate District 1 | 1.1% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 2B | 99% |
| State House District 1B | 1.1% |
Voting precincts
15 voting precincts overlap ZIP 56557. 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:56557")
ZIP 56557 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.