Boundary Atlas

ZIP code 53207: Milwaukee, WI

ZIP code 53207 is in Milwaukee, in Milwaukee County, Wisconsin. It is in Wisconsin's 4th congressional district. Its state senate districts are State Senate District 7 (92%) and State Senate District 3 (7.6%); its state house districts are Assembly District 21 (34%), Assembly District 20 (32%), Assembly District 19 (26%) and Assembly District 8 (7.6%).

34,292residents (2020 Census)
10.0 sq miland area
1cities and towns
1congressional district
30voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Milwaukee100%

CountyShare of ZIP residents
Milwaukee County100%

Town or county subdivisionShare of ZIP residents
Milwaukee city100%

Congressional district

Congressional districtShare of ZIP residents
Wisconsin's 4th congressional district (WI-04)100%

Elected officials

OfficeMemberContactShare of residents
MayorCavalier Johnson414-286-2200100%
U.S. Representative (WI-04)Gwen Moore (D)202-225-4572100%
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 7)Chris Larson (Democratic)92%
State Senator (State Senate District 3)Tim Carpenter (Democratic)7.6%
Assembly Member (Assembly District 21)Jessie Rodriguez (R)34%
Assembly Member (Assembly District 20)Christine Sinicki (Democratic)32%
Assembly Member (Assembly District 19)Ryan Clancy (Democratic)26%
Assembly Member (Assembly District 8)Sylvia Ortiz-Velez (Democratic)7.6%

Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); 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 792%
State Senate District 37.6%

State house districtShare of ZIP residents
Assembly District 2134%
Assembly District 2032%
Assembly District 1926%
Assembly District 87.6%

Voting precincts

30 voting precincts overlap ZIP 53207. 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:53207")

ZIP 53207 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.