Boundary Atlas

ZIP code 55804: Duluth, MN

ZIP code 55804 is in Duluth (73% of residents), in St. Louis County, Minnesota. 27% of its residents live outside city limits. It is in Minnesota's 8th congressional district. Its state senate districts are State Senate District 8 (73%) and State Senate District 3 (27%); its state house districts are State House District 8B (73%) and State House District 3B (27%).

15,471residents (2020 Census)
94.0 sq miland area
1cities and towns
1congressional district
9voting precincts

See it on the mapAll of Minnesota

City and county

City or townShare of ZIP residents
Duluth73%

CountyShare of ZIP residents
St. Louis County100%

Town or county subdivisionShare of ZIP residents
Duluth city73%
Duluth township12%
Lakewood township12%
Normanna township3.4%

Congressional district

Congressional districtShare of ZIP residents
Minnesota's 8th congressional district (MN-08)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 873%
State Senate District 327%

State house districtShare of ZIP residents
State House District 8B73%
State House District 3B27%

Voting precincts

9 voting precincts overlap ZIP 55804. 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:55804")

ZIP 55804 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.