Boundary Atlas

ZIP code 53590: Sun Prairie, WI

ZIP code 53590 is in Sun Prairie (82% of residents) and Windsor (1.6%), in Dane County, Wisconsin. 16% of its residents live outside city limits. It is in Wisconsin's 2nd congressional district. Its state senate districts are State Senate District 16 (98%) and State Senate District 14 (1.6%); its state house districts are Assembly District 48 (98%), Assembly District 42 (1.6%) and Assembly District 46 (<0.1%).

43,684residents (2020 Census)
65.9 sq miland area
2cities and towns
1congressional district
42voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Sun Prairie82%
Windsor1.6%

CountyShare of ZIP residents
Dane County100%

Town or county subdivisionShare of ZIP residents
Sun Prairie city82%
Bristol town9.5%
Sun Prairie town3.4%
Burke town3.1%
Windsor village1.6%
Madison city<0.1%
Cottage Grove village<0.1%

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 2nd congressional district (WI-02)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WI-02)Mark Pocan (D)202-225-2906100%
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 16)Melissa Ratcliff (Democratic)98%
State Senator (State Senate District 14)Sarah Keyeski (Democratic)1.6%
Assembly Member (Assembly District 48)Andrew Hysell (Democratic)98%
Assembly Member (Assembly District 42)Maureen McCarville (Democratic)1.6%
Assembly Member (Assembly District 46)Joan Fitzgerald (Democratic)<0.1%

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 1698%
State Senate District 141.6%

State house districtShare of ZIP residents
Assembly District 4898%
Assembly District 421.6%
Assembly District 46<0.1%

Voting precincts

42 voting precincts overlap ZIP 53590. Map them, with each precinct's share of the ZIP's residents.

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ZIP 53590 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.