Boundary Atlas

ZIP code 53549: Jefferson, WI

ZIP code 53549 is in Jefferson (76% of residents), in Jefferson County, Wisconsin. 24% of its residents live outside city limits. It is in Wisconsin's 5th congressional district. Its state senate districts are State Senate District 13 (84%), State Senate District 16 (9.8%) and State Senate District 33 (5.7%); its state house districts are Assembly District 38 (84%), Assembly District 46 (9.8%) and Assembly District 97 (5.7%).

10,199residents (2020 Census)
71.1 sq miland area
1cities and towns
1congressional district
23voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Jefferson76%

CountyShare of ZIP residents
Jefferson County100%

Town or county subdivisionShare of ZIP residents
Jefferson city76%
Jefferson town11%
Aztalan town5.3%
Hebron town4.3%
Farmington town1.2%
Sullivan town0.9%
Palmyra town0.6%

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 13)John Jagler (R)84%
State Senator (State Senate District 16)Melissa Ratcliff (Democratic)9.8%
State Senator (State Senate District 33)Chris Kapenga (R)5.7%
Assembly Member (Assembly District 38)Will Penterman (R)84%
Assembly Member (Assembly District 46)Joan Fitzgerald (Democratic)9.8%
Assembly Member (Assembly District 97)Cindi Duchow (R)5.7%

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 1384%
State Senate District 169.8%
State Senate District 335.7%

State house districtShare of ZIP residents
Assembly District 3884%
Assembly District 469.8%
Assembly District 975.7%

Voting precincts

23 voting precincts overlap ZIP 53549. Map them, with each precinct's share of the ZIP's residents.

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ZIP 53549 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.