Boundary Atlas

ZIP code 54721: Waterville, WI

ZIP code 54721 is in Arkansaw (15% of residents), in Pepin County (95%), Dunn County (4.8%) and Pierce County (0.6%), Wisconsin. 85% of its residents live outside city limits. It is in Wisconsin's 3rd congressional district. Its state senate district is State Senate District 10; its state house districts are Assembly District 29 (95%) and Assembly District 28 (4.8%).

1,274residents (2020 Census)
65.3 sq miland area
1cities and towns
1congressional district
8voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Arkansaw15%

CountyShare of ZIP residents
Pepin County95%
Dunn County4.8%
Pierce County0.6%

Town or county subdivisionShare of ZIP residents
Waterville town64%
Frankfort town16%
Waubeek town15%
Eau Galle town4.8%
Union town0.6%

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 3rd congressional district (WI-03)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WI-03)Derrick Van Orden (R)202-225-5506100%
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 10)Rob Stafsholt (R)100%
Assembly Member (Assembly District 29)Treig Pronschinske (R)95%
Assembly Member (Assembly District 28)Rob Kreibich (R)4.8%

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 10100%

State house districtShare of ZIP residents
Assembly District 2995%
Assembly District 284.8%

Voting precincts

8 voting precincts overlap ZIP 54721. 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://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:54721")

ZIP 54721 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.