Overview
- District ID
- wi-sd-020
- State
- Wisconsin
- Chamber
- Upper chamber (state senate)
- District Code
- 020
- Land Area
- 811.6 sq mi
- Water Area
- 10.2 sq mi
Boundary
Boundary as GeoJSON
Source: U.S. Census Bureau TIGER/Line state legislative district boundaries.
Counties
Showing all 5 counties
Places
Showing all 20 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 | 95,626 | 53.7% | 13.0% | 61.9% |
| WI District 5 | 82,501 | 46.3% | 11.2% | 38.1% |
Source: U.S. Census Bureau 2020 blocks and 2025 block equivalency files (119th Congress, 2024 state legislative plans).
Voters
- Registered Voters
- 117,388
- Active Voters
- 117,388 (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 | 108,163 (92.1%) | 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
- 179,040 (± 803)
- Median Age
- 42.2
- Median Household Income
- $81,783 (± $1,956)
- High School Graduate or Higher (age 25+)
- 94.4%
- Bachelor's Degree or Higher (age 25+)
- 27.0%
Population by Age
| Group | People | Share |
|---|
| Under 18 | 37,642 | 21.0% |
| 18 to 64 | 106,540 | 59.5% |
| 65 and over | 34,858 | 19.5% |
Population by Race and Hispanic Origin
| Group | People | Share |
|---|
| Hispanic or Latino (any race) | 10,001 | 5.6% |
| White, not Hispanic | 158,283 | 88.4% |
| Black, not Hispanic | 2,582 | 1.4% |
| Asian, not Hispanic | 2,501 | 1.4% |
| American Indian / Alaska Native, not Hispanic | 206 | 0.1% |
| Native Hawaiian / Pacific Islander, not Hispanic | 22 | 0.0% |
| Some other race, not Hispanic | 647 | 0.4% |
| Two or more races, not Hispanic | 4,798 | 2.7% |
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
- 176,076
- Citizen Voting Age Population (CVAP)
- 138,761
Citizen Population by Race/Ethnicity
| Group | Citizens | Share |
|---|
| Non-Hispanic | 167,683 | 95.2% |
| Hispanic | 8,391 | 4.8% |
| White | 159,116 | 90.4% |
| Black | 2,550 | 1.4% |
| Asian | 1,890 | 1.1% |
| American Indian / Alaska Native | 211 | 0.1% |
| Native Hawaiian / Pacific Islander | 25 | 0.0% |
| Two or More Races | 397 | 0.2% |
Citizen Voting Age Population by Race/Ethnicity
| Group | CVAP | Share |
|---|
| Non-Hispanic | 134,244 | 96.7% |
| Hispanic | 4,520 | 3.3% |
| White | 128,912 | 92.9% |
| Black | 2,541 | 1.8% |
| Asian | 1,562 | 1.1% |
| American Indian / Alaska Native | 943 | 0.7% |
| Native Hawaiian / Pacific Islander | 25 | 0.0% |
| Two or More Races | 259 | 0.2% |
Source: Redistricting Data Hub / U.S. Census Bureau CVAP Special Tabulation (2020-2024 ACS 5-year).
