Michigan State Senate District 25

State Legislative District Profile (Upper Chamber)

Overview

District ID
mi-sd-025
State
Michigan
Chamber
Upper chamber (state senate)
District Code
025
Land Area
2,932.1 sq mi
Water Area
2,087.5 sq mi

Boundary

Boundary of Michigan State Senate District 25

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Sanilac County962.57 sq mi32.8%100.0%
Huron County836.02 sq mi28.5%100.0%
St. Clair County667.56 sq mi22.8%92.5%
Tuscola County350.01 sq mi11.9%43.5%
Macomb County115.99 sq mi4.0%24.2%
Lapeer County0.04 sq mi<0.1%<0.1%

Showing all 6 counties

Places

PlaceOverlapShare of district landShare of place land
Port Huron city8.10 sq mi0.3%100.0%
Marysville city7.33 sq mi0.2%100.0%
Ruby CDP3.75 sq mi0.1%100.0%
Snover CDP3.42 sq mi0.1%100.0%
Bay Port CDP3.35 sq mi0.1%100.0%
Caro city2.94 sq mi0.1%100.0%
St. Clair city2.94 sq mi0.1%100.0%
Richmond city2.89 sq mi0.1%100.0%
New Haven village2.53 sq mi0.1%100.0%
Bad Axe city2.33 sq mi0.1%99.8%
Croswell city2.30 sq mi0.1%97.8%
Sandusky city2.17 sq mi0.1%100.0%
Marine City city2.16 sq mi0.1%100.0%
Capac village1.86 sq mi0.1%100.0%
Cass City village1.76 sq mi0.1%99.4%
Harbor Beach city1.72 sq mi0.1%100.0%
Marlette city1.61 sq mi0.1%100.0%
Sebewaing village1.59 sq mi0.1%99.9%
Emmett village1.50 sq mi0.1%100.0%
Lexington village1.38 sq mi<0.1%100.0%
Yale city1.37 sq mi<0.1%100.0%
Ubly village1.32 sq mi<0.1%100.0%
Deckerville village1.25 sq mi<0.1%100.0%
Kinde village1.18 sq mi<0.1%100.0%
Carsonville village1.16 sq mi<0.1%100.0%

Showing top 25 of 44 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
MI District 9264,345100.0%34.1%100.0%

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

Voters

Registered Voters
220,118
Active Voters
213,942 (97.2%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20265,486 (2.5%)0 (0.0%)0 (0.0%)
2023–2024154,944 (70.4%)0 (0.0%)0 (0.0%)
2021–2022117,917 (53.6%)0 (0.0%)0 (0.0%)
2019–2020138,160 (62.8%)0 (0.0%)0 (0.0%)
2017–201899,000 (45.0%)0 (0.0%)0 (0.0%)
2015–2016110,315 (50.1%)0 (0.0%)0 (0.0%)
2013–201468,501 (31.1%)0 (0.0%)0 (0.0%)
2011–201295,129 (43.2%)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 01/01/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
263,891 (± 530)
Median Age
44.0
Median Household Income
$67,195 (± $1,230)
High School Graduate or Higher (age 25+)
91.6%
Bachelor's Degree or Higher (age 25+)
19.6%

Population by Age

GroupPeopleShare
Under 1855,47821.0%
18 to 64153,44858.1%
65 and over54,96520.8%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)9,9753.8%
White, not Hispanic236,75989.7%
Black, not Hispanic6,0132.3%
Asian, not Hispanic1,1930.5%
American Indian / Alaska Native, not Hispanic2690.1%
Native Hawaiian / Pacific Islander, not Hispanic350.0%
Some other race, not Hispanic8480.3%
Two or more races, not Hispanic8,7993.3%

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
261,892
Citizen Voting Age Population (CVAP)
206,518

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic252,39196.4%
Hispanic9,5023.6%
White238,98491.3%
Black6,0082.3%
Asian9080.3%
American Indian / Alaska Native2680.1%
Native Hawaiian / Pacific Islander170.0%
Two or More Races3240.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic200,25997.0%
Hispanic6,2633.0%
White190,98092.5%
Black6,0902.9%
Asian1,1180.5%
American Indian / Alaska Native1,9260.9%
Native Hawaiian / Pacific Islander20.0%
Two or More Races1890.1%

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