Missouri State Senate District 8

State Legislative District Profile (Upper Chamber)

Overview

District ID
mo-sd-008
State
Missouri
Chamber
Upper chamber (state senate)
District Code
008
Land Area
211.8 sq mi
Water Area
6.56 sq mi

Boundary

Boundary of Missouri State Senate District 8

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Jackson County211.82 sq mi100.0%35.0%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Lee's Summit city62.48 sq mi29.5%97.8%
Blue Springs city22.42 sq mi10.6%98.4%
Lake Lotawana city10.31 sq mi4.9%99.9%
Lone Jack city5.85 sq mi2.8%98.8%
Greenwood city5.05 sq mi2.4%96.8%
Unity Village village1.46 sq mi0.7%100.0%
Kansas City city1.28 sq mi0.6%0.4%
Pleasant Hill city0.83 sq mi0.4%10.3%
Lake Tapawingo city0.32 sq mi0.2%100.0%
Tarsney Lakes CDP0.31 sq mi0.1%99.9%

Showing all 10 places

Overlapping Congressional Districts

Congressional districtPopulation in bothShare of this district's populationShare of the congressional district's populationShare of this district's land
MO District 5129,26172.5%16.8%49.8%
MO District 448,92527.5%6.4%50.2%

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

Voters

Registered Voters
134,140
Active Voters
126,502 (94.3%)

Party Registration

PartyVotersShare
Democratic10,2797.7%
Republican14,35710.7%
Unaffiliated48,29736.0%
Other parties3690.3%
No party recorded60,83845.4%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–202616,876 (12.6%)0 (0.0%)0 (0.0%)
2023–2024102,396 (76.3%)0 (0.0%)0 (0.0%)
2021–202268,975 (51.4%)0 (0.0%)0 (0.0%)
2019–202091,338 (68.1%)0 (0.0%)0 (0.0%)
2017–201868,754 (51.3%)0 (0.0%)0 (0.0%)
2015–201673,849 (55.1%)0 (0.0%)0 (0.0%)
2013–201436,672 (27.3%)0 (0.0%)0 (0.0%)
2011–201267,080 (50.0%)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 01/02/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
182,128 (± 768)
Median Age
38.9
Median Household Income
$98,018 (± $2,333)
High School Graduate or Higher (age 25+)
96.7%
Bachelor's Degree or Higher (age 25+)
42.8%

Population by Age

GroupPeopleShare
Under 1847,21225.9%
18 to 64105,48357.9%
65 and over29,43316.2%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)10,8315.9%
White, not Hispanic143,13178.6%
Black, not Hispanic15,0348.3%
Asian, not Hispanic3,1651.7%
American Indian / Alaska Native, not Hispanic2010.1%
Native Hawaiian / Pacific Islander, not Hispanic5110.3%
Some other race, not Hispanic8290.5%
Two or more races, not Hispanic8,4264.6%

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
180,109
Citizen Voting Age Population (CVAP)
132,973

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic170,25994.5%
Hispanic9,8475.5%
White144,89280.4%
Black15,4938.6%
Asian2,7591.5%
American Indian / Alaska Native1980.1%
Native Hawaiian / Pacific Islander3510.2%
Two or More Races8840.5%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic126,84495.4%
Hispanic6,1284.6%
White110,70683.3%
Black11,8478.9%
Asian2,4021.8%
American Indian / Alaska Native1,4581.1%
Native Hawaiian / Pacific Islander1870.1%
Two or More Races3660.3%

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