Boundary Atlas

ZIP code 58531: Malcolm, ND

ZIP code 58531 is in Coleharbor (15% of residents), in McLean County, North Dakota. 85% of its residents live outside city limits. It is in North Dakota's at-large congressional district. Its state senate districts are State Senate District 6 (79%) and State Senate District 33 (21%); its state house districts are State House District 6 (79%) and State House District 33 (21%).

401residents (2020 Census)
118.2 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of North Dakota

City and county

City or townShare of ZIP residents
Coleharbor15%

CountyShare of ZIP residents
McLean County100%

Town or county subdivisionShare of ZIP residents
Malcolm township26%
Snow township23%
Underwood UT15%
Coleharbor city15%
Victoria township14%
Turtle Lake township4.7%
East McLean UT0.8%
Longfellow township0.5%
North Central McLean UT0.2%

Congressional district

Congressional districtShare of ZIP residents
North Dakota's at-large congressional district (ND-AL)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (ND-AL)Julie Fedorchak (R)202-225-2611100%
U.S. SenatorJohn Hoeven (R)202-224-2551 · contact formstatewide
U.S. SenatorKevin Cramer (R)202-224-2043 · contact formstatewide
State Senator (State Senate District 6)Paul Thomas (R)79%
State Senator (State Senate District 33)Keith Boehm (R)21%
State Senator (State Senate District 4)Chuck Walen (R)<0.1%
State Representative (State House District 6)Dan Vollmer (R)79%
State Representative (State House District 6)Dick Anderson (R)79%
State Representative (State House District 33)Anna Novak (R)21%
State Representative (State House District 33)Bill Tveit (R)21%
State Representative (State House District 4B)Clayton Fegley (R)<0.1%

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 679%
State Senate District 3321%
State Senate District 4land only

State house districtShare of ZIP residents
State House District 679%
State House District 3321%
State House District 4Bland only

Voting precincts

4 voting precincts overlap ZIP 58531. Map them, with each precinct's share of the ZIP's residents.

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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:58531")

ZIP 58531 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.