Boundary Atlas

ZIP code 53556: Lone Rock, WI

ZIP code 53556 is in Lone Rock (31% of residents), Sextonville (10%) and Gotham (2.4%), in Richland County (85%) and Sauk County (15%), Wisconsin. 57% of its residents live outside city limits. It is in Wisconsin's 3rd congressional district (85%) and Wisconsin's 2nd congressional district (15%). Its state senate district is State Senate District 14; its state house districts are Assembly District 41 (85%) and Assembly District 40 (15%).

2,680residents (2020 Census)
48.5 sq miland area
3cities and towns
2congressional districts
7voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Lone Rock31%
Sextonville10%
Gotham2.4%

CountyShare of ZIP residents
Richland County85%
Sauk County15%

Town or county subdivisionShare of ZIP residents
Buena Vista town51%
Lone Rock village31%
Spring Green town12%
Orion town3.0%
Bear Creek town2.8%
Ithaca town<0.1%

Congressional districts

Congressional districtShare of ZIP residents
Wisconsin's 3rd congressional district (WI-03)85%
Wisconsin's 2nd congressional district (WI-02)15%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WI-03)Derrick Van Orden (R)202-225-550685%
U.S. Representative (WI-02)Mark Pocan (D)202-225-290615%
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 14)Sarah Keyeski (Democratic)100%
Assembly Member (Assembly District 41)Tony Kurtz (R)85%
Assembly Member (Assembly District 40)Karen DeSanto (Democratic)15%

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 14100%

State house districtShare of ZIP residents
Assembly District 4185%
Assembly District 4015%

Voting precincts

7 voting precincts overlap ZIP 53556. Map them, with each precinct's share of the ZIP's residents.

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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:53556")

ZIP 53556 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.