Boundary Atlas

ZIP code 53115: Delavan, WI

ZIP code 53115 is in Delavan (54% of residents), Delavan Lake (17%), Turtle Lake (2.2%) and Lake Lorraine (1.5%), in Walworth County, Wisconsin. 25% of its residents live outside city limits. It is in Wisconsin's 1st congressional district. Its state senate districts are State Senate District 11 (91%) and State Senate District 15 (9.2%); its state house districts are Assembly District 31 (91%) and Assembly District 43 (9.2%).

15,884residents (2020 Census)
71.9 sq miland area
4cities and towns
1congressional district
28voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Delavan54%
Delavan Lake17%
Turtle Lake2.2%
Lake Lorraine1.5%

CountyShare of ZIP residents
Walworth County100%

Town or county subdivisionShare of ZIP residents
Delavan city54%
Delavan town28%
Richmond town9.2%
Darien town7.0%
Walworth town1.4%
Sharon town0.2%
Sugar Creek town0.2%

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 1st congressional district (WI-01)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WI-01)Bryan Steil (R)202-225-3031100%
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 11)Steve Nass (R)91%
State Senator (State Senate District 15)Mark Spreitzer (Democratic)9.2%
Assembly Member (Assembly District 31)Tyler August (R)91%
Assembly Member (Assembly District 43)Brienne Brown (Democratic)9.2%

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 1191%
State Senate District 159.2%

State house districtShare of ZIP residents
Assembly District 3191%
Assembly District 439.2%

Voting precincts

28 voting precincts overlap ZIP 53115. Map them, with each precinct's share of the ZIP's residents.

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ZIP 53115 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.