Boundary Atlas

ZIP code 53091: Theresa, WI

ZIP code 53091 is in Theresa (62% of residents), in Dodge County (98%) and Washington County (1.6%), Wisconsin. 38% of its residents live outside city limits. It is in Wisconsin's 6th congressional district (68%) and Wisconsin's 5th congressional district (32%). Its state senate districts are State Senate District 20 (97%) and State Senate District 13 (2.7%); its state house districts are Assembly District 59 (97%) and Assembly District 38 (2.7%).

2,013residents (2020 Census)
25.7 sq miland area
1cities and towns
2congressional districts
8voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Theresa62%

CountyShare of ZIP residents
Dodge County98%
Washington County1.6%

Town or county subdivisionShare of ZIP residents
Theresa village62%
Theresa town34%
Herman town2.7%
Wayne town1.6%

Congressional districts

Congressional districtShare of ZIP residents
Wisconsin's 6th congressional district (WI-06)68%
Wisconsin's 5th congressional district (WI-05)32%

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

OfficeMemberContactShare of residents
U.S. Representative (WI-06)Glenn Grothman (R)202-225-247668%
U.S. Representative (WI-05)Scott Fitzgerald (R)202-225-510132%
U.S. SenatorRon Johnson (R)202-224-5323 · contact formstatewide
U.S. SenatorTammy Baldwin (D)202-224-5653 · contact formstatewide
State Senator (State Senate District 20)Dan Feyen (R)920-952-700197%
State Senator (State Senate District 13)John Jagler (R)2.7%
Assembly Member (Assembly District 59)Rob Brooks (R)97%
Assembly Member (Assembly District 38)Will Penterman (R)2.7%

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 2097%
State Senate District 132.7%

State house districtShare of ZIP residents
Assembly District 5997%
Assembly District 382.7%

Voting precincts

8 voting precincts overlap ZIP 53091. 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:53091")

ZIP 53091 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.