Boundary Atlas

Brown Deer, Wisconsin

Brown Deer is a village in Milwaukee County, Wisconsin, with 12,507 residents in 2020. It is in Wisconsin's 4th congressional district. It spans 2 state senate and 2 state house districts.

12,507residents (2020 Census)
4.4 sq miland area
3ZIP codes
1congressional district

County

CountyShare of residents
Milwaukee County100%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
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 8)Jodi Habush Sinykin (Democratic)87%
State Senator (State Senate District 4)Dora Drake (Democratic)13%
Assembly Member (Assembly District 23)Deb Andraca (Democratic)87%
Assembly Member (Assembly District 12)Russell Goodwin (Democratic)13%

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 residents
State Senate District 887%
State Senate District 413%

State house districtShare of residents
Assembly District 2387%
Assembly District 1213%

ZIP codes

Percentages mark ZIPs only partly in Brown Deer: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Brown Deer's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:5510375")

Brown Deer here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.