Wisconsin Assembly District 45

State Legislative District Profile (Lower Chamber)

Overview

District ID
wi-hd-045
State
Wisconsin
Chamber
Lower chamber
District Code
045
Land Area
252 sq mi
Water Area
2.01 sq mi

Boundary

Boundary of Wisconsin Assembly District 45

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Rock County252.01 sq mi100.0%35.1%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Beloit city17.33 sq mi6.9%99.8%
Evansville city3.26 sq mi1.3%89.4%
Orfordville village1.19 sq mi0.5%100.0%
Shopiere CDP0.22 sq mi0.1%99.8%

Showing all 4 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 140,84868.5%5.5%16.5%
WI District 218,75331.5%2.5%83.5%

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

Voters

Registered Voters
33,233
Active Voters
33,233 (100.0%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202428,578 (86.0%)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
60,099 (± 462)
Median Age
37.6
Median Household Income
$71,240 (± $3,865)
High School Graduate or Higher (age 25+)
89.6%
Bachelor's Degree or Higher (age 25+)
22.0%

Population by Age

GroupPeopleShare
Under 1814,31023.8%
18 to 6435,97059.9%
65 and over9,81916.3%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)9,03815.0%
White, not Hispanic42,30070.4%
Black, not Hispanic5,4719.1%
Asian, not Hispanic4720.8%
American Indian / Alaska Native, not Hispanic70.0%
Native Hawaiian / Pacific Islander, not Hispanic00.0%
Some other race, not Hispanic1740.3%
Two or more races, not Hispanic2,6374.4%

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
57,816
Citizen Voting Age Population (CVAP)
43,556

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic50,87488.0%
Hispanic6,94412.0%
White42,93174.3%
Black5,5649.6%
Asian3970.7%
American Indian / Alaska Native80.0%
Native Hawaiian / Pacific Islander00.0%
Two or More Races750.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic39,79391.4%
Hispanic3,7608.6%
White34,67679.6%
Black4,42410.2%
Asian4621.1%
American Indian / Alaska Native2010.5%
Native Hawaiian / Pacific Islander00.0%
Two or More Races410.1%

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