Boundary Atlas

ZIP code 54479: Spencer, WI

ZIP code 54479 is in Spencer (47% of residents), in Marathon County (75%) and Clark County (25%), Wisconsin. 53% of its residents live outside city limits. It is in Wisconsin's 7th congressional district. Its state senate districts are State Senate District 29 (65%) and State Senate District 23 (35%); its state house districts are Assembly District 86 (65%) and Assembly District 69 (35%).

3,838residents (2020 Census)
76.8 sq miland area
1cities and towns
1congressional district
12voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Spencer47%

CountyShare of ZIP residents
Marathon County75%
Clark County25%

Town or county subdivisionShare of ZIP residents
Spencer village47%
Spencer town18%
Sherman town13%
Brighton town9.4%
Unity town8.8%
Fremont town3.5%
Loyal town0.3%

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 7th congressional district (WI-07)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WI-07)Thomas P. Tiffany (R)202-225-3365100%
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 29)Cory Tomczyk (R)65%
State Senator (State Senate District 23)Jesse James (R)35%
Assembly Member (Assembly District 86)John Spiros (R)65%
Assembly Member (Assembly District 69)Karen Hurd (R)35%

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 2965%
State Senate District 2335%

State house districtShare of ZIP residents
Assembly District 8665%
Assembly District 6935%

Voting precincts

12 voting precincts overlap ZIP 54479. Map them, with each precinct's share of the ZIP's residents.

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ZIP 54479 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.