Michigan State House District 45

State Legislative District Profile (Lower Chamber)

Overview

District ID
mi-hd-045
State
Michigan
Chamber
Lower chamber
District Code
045
Land Area
956 sq mi
Water Area
13.4 sq mi

Boundary

Boundary of Michigan State House District 45

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Calhoun County456.79 sq mi47.8%64.7%
Jackson County392.35 sq mi41.0%55.9%
Kalamazoo County106.93 sq mi11.2%19.0%

Showing all 3 counties

Places

PlaceOverlapShare of district landShare of place land
Marshall city6.49 sq mi0.7%83.4%
Spring Arbor CDP2.78 sq mi0.3%100.0%
Brownlee Park CDP1.58 sq mi0.2%78.2%
Concord village1.49 sq mi0.2%99.3%
Homer village1.40 sq mi0.1%100.0%
Springport village1.26 sq mi0.1%100.0%
Climax village1.06 sq mi0.1%100.0%
Parma village1.05 sq mi0.1%100.0%
Athens village1.01 sq mi0.1%100.0%
Tekonsha village0.95 sq mi0.1%96.0%
Burlington village0.76 sq mi0.1%99.9%
Hanover village0.42 sq mi<0.1%100.0%
Augusta village0.12 sq mi<0.1%11.7%
Scotts CDP0.10 sq mi<0.1%42.8%
Union City village0.08 sq mi<0.1%5.5%

Showing all 15 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 574,60782.3%9.6%89.2%
MI District 416,00517.7%2.1%10.8%

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

Voters

Registered Voters
74,705
Active Voters
72,060 (96.5%)

Party Registration

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

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20261,899 (2.5%)0 (0.0%)0 (0.0%)
2023–202452,759 (70.6%)0 (0.0%)0 (0.0%)
2021–202240,740 (54.5%)0 (0.0%)0 (0.0%)
2019–202047,121 (63.1%)0 (0.0%)0 (0.0%)
2017–201834,683 (46.4%)0 (0.0%)0 (0.0%)
2015–201638,074 (51.0%)0 (0.0%)0 (0.0%)
2013–201423,630 (31.6%)0 (0.0%)0 (0.0%)
2011–201233,417 (44.7%)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
90,499 (± 694)
Median Age
43.2
Median Household Income
$79,238 (± $1,823)
High School Graduate or Higher (age 25+)
93.9%
Bachelor's Degree or Higher (age 25+)
26.8%

Population by Age

GroupPeopleShare
Under 1819,87822.0%
18 to 6452,48558.0%
65 and over18,13620.0%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)3,2253.6%
White, not Hispanic82,09290.7%
Black, not Hispanic1,3791.5%
Asian, not Hispanic5540.6%
American Indian / Alaska Native, not Hispanic1230.1%
Native Hawaiian / Pacific Islander, not Hispanic00.0%
Some other race, not Hispanic1230.1%
Two or more races, not Hispanic3,0033.3%

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
89,810
Citizen Voting Age Population (CVAP)
70,040

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic86,80796.7%
Hispanic3,0003.3%
White82,83192.2%
Black1,4111.6%
Asian2530.3%
American Indian / Alaska Native1220.1%
Native Hawaiian / Pacific Islander20.0%
Two or More Races880.1%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic68,11297.2%
Hispanic1,9322.8%
White65,60993.7%
Black1,5722.2%
Asian2910.4%
American Indian / Alaska Native6000.9%
Native Hawaiian / Pacific Islander10.0%
Two or More Races610.1%

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