Boundary Atlas

Germantown, Wisconsin

Germantown is a village in Washington County, Wisconsin, with 20,917 residents in 2020. It is in Wisconsin's 5th congressional district. It spans 2 state senate and 3 state house districts.

20,917residents (2020 Census)
34.4 sq miland area
4ZIP codes
1congressional district

County

CountyShare of residents
Washington County100%

Congressional district

Congressional districtShare of residents
Wisconsin's 5th congressional district (WI-05)100%

Elected officials

OfficeMemberContactShare of residents
MayorBob Soderberg262-250-4785citywide
U.S. Representative (WI-05)Scott Fitzgerald (R)202-225-5101100%
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)97%
State Senator (State Senate District 33)Chris Kapenga (R)3.2%
Assembly Member (Assembly District 24)Dan Knodl (R)87%
Assembly Member (Assembly District 22)Paul Melotik (R)9.8%
Assembly Member (Assembly District 98)Jim Piwowarczyk (R)3.2%

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 residents
State Senate District 897%
State Senate District 333.2%

State house districtShare of residents
Assembly District 2487%
Assembly District 229.8%
Assembly District 983.2%

ZIP codes

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

Get this in your AI agent

Your agent can get Germantown'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:5528875")

Germantown 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.