Boundary Atlas

ZIP code 53575: Oregon, WI

ZIP code 53575 is in Oregon (65% of residents) and Fitchburg (11%), in Dane County, Wisconsin. 25% of its residents live outside city limits. It is in Wisconsin's 2nd congressional district. Its state senate districts are State Senate District 17 (79%) and State Senate District 16 (21%); its state house districts are Assembly District 50 (79%) and Assembly District 47 (21%).

17,320residents (2020 Census)
55.3 sq miland area
2cities and towns
1congressional district
28voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Oregon65%
Fitchburg11%

CountyShare of ZIP residents
Dane County100%

Town or county subdivisionShare of ZIP residents
Oregon village65%
Oregon town14%
Fitchburg city11%
Rutland town5.8%
Dunn town5.0%
Montrose town0.2%

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 2nd congressional district (WI-02)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (WI-02)Mark Pocan (D)202-225-2906100%
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 17)Howard Marklein (R)79%
State Senator (State Senate District 16)Melissa Ratcliff (Democratic)21%
Assembly Member (Assembly District 50)Jenna Jacobson (Democratic)79%
Assembly Member (Assembly District 47)Randy Udell (Democratic)21%

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 1779%
State Senate District 1621%

State house districtShare of ZIP residents
Assembly District 5079%
Assembly District 4721%

Voting precincts

28 voting precincts overlap ZIP 53575. 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:53575")

ZIP 53575 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.