Boundary Atlas

ZIP code 53209: Milwaukee, WI

ZIP code 53209 is in Milwaukee (75% of residents), Glendale (19%) and Brown Deer (5.9%), in Milwaukee County, Wisconsin. It is in Wisconsin's 4th congressional district. Its state senate districts are State Senate District 4 (87%), State Senate District 6 (6.9%) and State Senate District 8 (5.9%); its state house districts are Assembly District 11 (48%), Assembly District 10 (39%), Assembly District 17 (6.9%) and Assembly District 23 (5.9%).

44,586residents (2020 Census)
10.9 sq miland area
3cities and towns
1congressional district
36voting precincts

See it on the mapAll of Wisconsin

City and county

City or townShare of ZIP residents
Milwaukee75%
Glendale19%
Brown Deer5.9%

CountyShare of ZIP residents
Milwaukee County100%

Town or county subdivisionShare of ZIP residents
Milwaukee city75%
Glendale city19%
Brown Deer village5.9%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
MayorCavalier Johnson414-286-220075%
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 4)Dora Drake (Democratic)87%
State Senator (State Senate District 6)LaTonya Johnson (Democratic)414-313-12416.9%
State Senator (State Senate District 8)Jodi Habush Sinykin (Democratic)5.9%
Assembly Member (Assembly District 11)Sequanna Taylor (Democratic)48%
Assembly Member (Assembly District 10)Darrin Madison (Democratic)39%
Assembly Member (Assembly District 17)Supreme Moore Omokunde (Democratic)6.9%
Assembly Member (Assembly District 23)Deb Andraca (Democratic)5.9%

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 487%
State Senate District 66.9%
State Senate District 85.9%

State house districtShare of ZIP residents
Assembly District 1148%
Assembly District 1039%
Assembly District 176.9%
Assembly District 235.9%

Voting precincts

36 voting precincts overlap ZIP 53209. 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:53209")

ZIP 53209 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.