Boundary Atlas

ZIP code 53010: Campbellsport, WI

ZIP code 53010 is in Campbellsport (25% of residents), in Fond du Lac County (95%), Washington County (4.8%) and Dodge County (0.1%), Wisconsin. 75% of its residents live outside city limits. It is in Wisconsin's 6th congressional district (95%) and Wisconsin's 5th congressional district (4.8%). Its state senate districts are State Senate District 20 (100%) and State Senate District 13 (0.2%); its state house districts are Assembly District 59 (100%) and Assembly District 37 (0.2%).

7,497residents (2020 Census)
104.6 sq miland area
1cities and towns
2congressional districts
18voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Campbellsport25%

CountyShare of ZIP residents
Fond du Lac County95%
Washington County4.8%
Dodge County0.1%

Town or county subdivisionShare of ZIP residents
Campbellsport village25%
Auburn town25%
Ashford town23%
Osceola town18%
Wayne town4.8%
Eden town4.2%
Lomira town0.1%

Congressional districts

Congressional districtShare of ZIP residents
Wisconsin's 6th congressional district (WI-06)95%
Wisconsin's 5th congressional district (WI-05)4.8%

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.

State legislative districts

State senate districtShare of ZIP residents
State Senate District 20100%
State Senate District 130.2%

State house districtShare of ZIP residents
Assembly District 59100%
Assembly District 370.2%

Voting precincts

18 voting precincts overlap ZIP 53010. 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:53010")

ZIP 53010 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.