Boundary Atlas

ZIP code 54538: Lac du Flambeau, WI

ZIP code 54538 is in Lac du Flambeau (59% of residents), in Vilas County (96%), Oneida County (3.6%), Price County (0.4%) and Iron County (0.1%), Wisconsin. 41% of its residents live outside city limits. It is in Wisconsin's 7th congressional district. Its state senate districts are State Senate District 12 (99%), State Senate District 23 (0.4%) and State Senate District 25 (0.1%); its state house districts are Assembly District 34 (99%), Assembly District 68 (0.4%) and Assembly District 74 (0.1%).

3,133residents (2020 Census)
105.0 sq miland area
1cities and towns
1congressional district
11voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Lac du Flambeau59%

CountyShare of ZIP residents
Vilas County96%
Oneida County3.6%
Price County0.4%
Iron County0.1%

Town or county subdivisionShare of ZIP residents
Lac du Flambeau town96%
Minocqua town3.6%
Fifield town0.4%
Manitowish Waters town0.1%
Sherman town0.1%

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 12)Mary Felzkowski (R)99%
State Senator (State Senate District 23)Jesse James (R)0.4%
State Senator (State Senate District 25)Romaine Quinn (R)0.1%
Assembly Member (Assembly District 34)Rob Swearingen (R)99%
Assembly Member (Assembly District 68)Rob Summerfield (R)0.4%
Assembly Member (Assembly District 74)Chanz Green (R)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 1299%
State Senate District 230.4%
State Senate District 250.1%

State house districtShare of ZIP residents
Assembly District 3499%
Assembly District 680.4%
Assembly District 740.1%

Voting precincts

11 voting precincts overlap ZIP 54538. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:54538")

ZIP 54538 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.