Overview
- District ID
- wi-sd-018
- State
- Wisconsin
- Chamber
- Upper chamber (state senate)
- District Code
- 018
- Land Area
- 82.8 sq mi
- Water Area
- 8.08 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 2 counties
Places
Showing all 6 places
Overlapping Congressional Districts
| Congressional district | Population in both | Share of this district's population | Share of the congressional district's population | Share of this district's land |
|---|
| WI District 6 | 114,544 | 64.1% | 15.5% | 72.5% |
| WI District 8 | 64,178 | 35.9% | 8.7% | 27.5% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 104,187
- Active Voters
- 104,187 (100.0%)
Party Registration
This state's voter file does not record party registration.
Turnout by Cycle
| Cycle | General | Democratic Primary | Republican Primary |
|---|
| 2023–2024 | 91,090 (87.4%) | 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
- 177,198 (± 1,652)
- Median Age
- 36.5
- Median Household Income
- $68,765 (± $2,402)
- High School Graduate or Higher (age 25+)
- 93.7%
- Bachelor's Degree or Higher (age 25+)
- 30.6%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 36,468 | 20.6% |
| 18 to 64 | 111,615 | 63.0% |
| 65 and over | 29,115 | 16.4% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 11,331 | 6.4% |
| White, not Hispanic | 143,106 | 80.8% |
| Black, not Hispanic | 5,969 | 3.4% |
| Asian, not Hispanic | 8,176 | 4.6% |
| American Indian / Alaska Native, not Hispanic | 685 | 0.4% |
| Native Hawaiian / Pacific Islander, not Hispanic | 113 | 0.1% |
| Some other race, not Hispanic | 527 | 0.3% |
| Two or more races, not Hispanic | 7,291 | 4.1% |
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
- 173,008
- Citizen Voting Age Population (CVAP)
- 137,232
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 163,278 | 94.4% |
| Hispanic | 9,727 | 5.6% |
| White | 144,456 | 83.5% |
| Black | 5,530 | 3.2% |
| Asian | 7,059 | 4.1% |
| American Indian / Alaska Native | 693 | 0.4% |
| Native Hawaiian / Pacific Islander | 112 | 0.1% |
| Two or More Races | 608 | 0.4% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 131,287 | 95.7% |
| Hispanic | 5,942 | 4.3% |
| White | 119,422 | 87.0% |
| Black | 4,395 | 3.2% |
| Asian | 5,442 | 4.0% |
| American Indian / Alaska Native | 1,821 | 1.3% |
| Native Hawaiian / Pacific Islander | 46 | 0.0% |
| Two or More Races | 247 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
