Boundary Atlas

ZIP code 53036: Ixonia, WI

ZIP code 53036 is in Ixonia (67% of residents) and Ashippun (2.8%), in Jefferson County (89%), Dodge County (9.2%) and Waukesha County (1.4%), Wisconsin. 30% of its residents live outside city limits. It is in Wisconsin's 5th congressional district. Its state senate district is State Senate District 33; its state house district is Assembly District 99.

3,540residents (2020 Census)
28.6 sq miland area
3cities and towns
1congressional district
11voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Ixonia67%
Ashippun2.8%
Lac La Belle<0.1%

CountyShare of ZIP residents
Jefferson County89%
Dodge County9.2%
Waukesha County1.4%

Town or county subdivisionShare of ZIP residents
Ixonia town89%
Ashippun town4.8%
Lebanon town4.4%
Oconomowoc town1.4%
Lac La Belle village<0.1%

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 5th congressional district (WI-05)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WI-05)Scott Fitzgerald (R)202-225-5101100%
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 33)Chris Kapenga (R)100%
Assembly Member (Assembly District 99)Barbara Dittrich (R)100%

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 33100%

State house districtShare of ZIP residents
Assembly District 99100%

Voting precincts

11 voting precincts overlap ZIP 53036. Map them, with each precinct's share of the ZIP's residents.

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ZIP 53036 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.