Wisconsin State Senate District 8

State Legislative District Profile (Upper Chamber)

Overview

District ID
wi-sd-008
State
Wisconsin
Chamber
Upper chamber (state senate)
District Code
008
Land Area
209.1 sq mi
Water Area
1.89 sq mi

Boundary

Boundary of Wisconsin State Senate District 8

Boundary as GeoJSON

Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.

Counties

CountyOverlapShare of district landShare of county land
Ozaukee County123.23 sq mi58.9%52.9%
Waukesha County36.23 sq mi17.3%6.6%
Washington County33.34 sq mi15.9%7.7%
Milwaukee County16.29 sq mi7.8%6.7%

Showing all 4 counties

Places

PlaceOverlapShare of district landShare of place land
Mequon city46.28 sq mi22.1%100.0%
Menomonee Falls village32.91 sq mi15.7%100.0%
Germantown village31.50 sq mi15.1%91.6%
Port Washington city5.86 sq mi2.8%98.5%
River Hills village5.16 sq mi2.5%100.0%
Grafton village5.09 sq mi2.4%95.5%
Cedarburg city4.84 sq mi2.3%98.3%
Brown Deer village3.86 sq mi1.8%87.9%
Fox Point village2.86 sq mi1.4%100.0%
Lannon village2.47 sq mi1.2%100.0%
Bayside village2.39 sq mi1.1%100.0%
Whitefish Bay village2.12 sq mi1.0%100.0%
Thiensville village1.04 sq mi0.5%100.0%
Butler village0.78 sq mi0.4%99.9%
Milwaukee city0.09 sq mi<0.1%0.1%

Showing all 15 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
WI District 677,15943.3%10.5%58.9%
WI District 562,15934.9%8.4%33.3%
WI District 438,80421.8%5.3%7.8%

Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).

Voters

Registered Voters
132,759
Active Voters
132,759 (100.0%)

Party Registration

This state's voter file does not record party registration.

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–2024121,599 (91.6%)0 (0.0%)0 (0.0%)

Turnout counts today's registered voters with a counted ballot in the cycle's elections (the odd and even year), as a share of today's registered voters. Voters who have since left the rolls are not counted.

Browse the voter list for this district (premium access; sign-in required)

Source: Civitech voter file snapshot as of 05/15/2025. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
180,050 (± 727)
Median Age
43.0
Median Household Income
$103,557 (± $3,032)
High School Graduate or Higher (age 25+)
96.9%
Bachelor's Degree or Higher (age 25+)
54.6%

Population by Age

GroupPeopleShare
Under 1840,58922.5%
18 to 64102,25056.8%
65 and over37,21120.7%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)7,5774.2%
White, not Hispanic150,40383.5%
Black, not Hispanic7,6804.3%
Asian, not Hispanic7,0133.9%
American Indian / Alaska Native, not Hispanic1950.1%
Native Hawaiian / Pacific Islander, not Hispanic230.0%
Some other race, not Hispanic7230.4%
Two or more races, not Hispanic6,4363.6%

Source: U.S. Census Bureau, American Community Survey 2020-2024 ACS 5-year estimates (tables B01001, B01002, B01003, B03002, B15003, B19013) for this state legislative district. Estimates are survey-based; ± figures are 90% margins of error.

Citizen Voting Age Population

Total Citizen Population
176,055
Citizen Voting Age Population (CVAP)
136,080

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic169,30896.2%
Hispanic6,7503.8%
White150,98085.8%
Black7,7154.4%
Asian5,7553.3%
American Indian / Alaska Native1960.1%
Native Hawaiian / Pacific Islander240.0%
Two or More Races4490.3%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic131,80996.9%
Hispanic4,2693.1%
White118,88987.4%
Black6,9555.1%
Asian4,9813.7%
American Indian / Alaska Native6920.5%
Native Hawaiian / Pacific Islander130.0%
Two or More Races3280.2%

Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).