Boundary Atlas

ZIP code 53555: Lodi, WI

ZIP code 53555 is in Lodi (37% of residents) and Lake Wisconsin (37%), in Columbia County (93%) and Dane County (6.7%), Wisconsin. 26% of its residents live outside city limits. It is in Wisconsin's 6th congressional district (93%) and Wisconsin's 2nd congressional district (6.7%). Its state senate districts are State Senate District 14 (93%) and State Senate District 27 (6.7%); its state house districts are Assembly District 42 (93%) and Assembly District 81 (6.7%).

8,529residents (2020 Census)
75.7 sq miland area
2cities and towns
2congressional districts
16voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Lodi37%
Lake Wisconsin37%

CountyShare of ZIP residents
Columbia County93%
Dane County6.7%

Town or county subdivisionShare of ZIP residents
Lodi town39%
Lodi city37%
West Point town14%
Dane town4.8%
Arlington town3.9%
Roxbury town1.9%

Congressional districts

Congressional districtShare of ZIP residents
Wisconsin's 6th congressional district (WI-06)93%
Wisconsin's 2nd congressional district (WI-02)6.7%

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-06)Glenn Grothman (R)202-225-247693%
U.S. Representative (WI-02)Mark Pocan (D)202-225-29066.7%
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)93%
State Senator (State Senate District 27)Dianne Hesselbein (Democratic)6.7%
Assembly Member (Assembly District 42)Maureen McCarville (Democratic)93%
Assembly Member (Assembly District 81)Alex Joers (Democratic)6.7%

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 1493%
State Senate District 276.7%

State house districtShare of ZIP residents
Assembly District 4293%
Assembly District 816.7%

Voting precincts

16 voting precincts overlap ZIP 53555. 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:53555")

ZIP 53555 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.