Wisconsin Assembly District 48

State Legislative District Profile (Lower Chamber)

Overview

District ID
wi-hd-048
State
Wisconsin
Chamber
Lower chamber
District Code
048
Land Area
195 sq mi
Water Area
1.4 sq mi

Boundary

Boundary of Wisconsin Assembly District 48

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Dane County124.70 sq mi63.9%10.4%
Dodge County70.34 sq mi36.1%8.0%

Showing all 2 counties

Places

PlaceOverlapShare of district landShare of place land
Sun Prairie city12.91 sq mi6.6%98.6%
Madison city6.98 sq mi3.6%8.3%
Cottage Grove village0.10 sq mi<0.1%2.1%

Showing all 3 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 256,96396.4%7.7%63.9%
WI District 52,1323.6%0.3%36.1%

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

Voters

Registered Voters
41,344
Active Voters
41,344 (100.0%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202436,998 (89.5%)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
61,191 (± 1,118)
Median Age
37.3
Median Household Income
$95,127 (± $5,183)
High School Graduate or Higher (age 25+)
96.8%
Bachelor's Degree or Higher (age 25+)
48.7%

Population by Age

GroupPeopleShare
Under 1814,47023.6%
18 to 6438,19462.4%
65 and over8,52713.9%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)3,9986.5%
White, not Hispanic44,79873.2%
Black, not Hispanic5,0788.3%
Asian, not Hispanic4,4457.3%
American Indian / Alaska Native, not Hispanic00.0%
Native Hawaiian / Pacific Islander, not Hispanic700.1%
Some other race, not Hispanic2410.4%
Two or more races, not Hispanic2,5614.2%

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
58,487
Citizen Voting Age Population (CVAP)
44,627

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic55,29494.5%
Hispanic3,1955.5%
White45,55377.9%
Black4,6457.9%
Asian3,1605.4%
American Indian / Alaska Native00.0%
Native Hawaiian / Pacific Islander700.1%
Two or More Races720.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic42,64395.6%
Hispanic1,9814.4%
White36,56981.9%
Black3,3647.5%
Asian2,4555.5%
American Indian / Alaska Native1770.4%
Native Hawaiian / Pacific Islander510.1%
Two or More Races530.1%

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