Missouri State House District 31

State Legislative District Profile (Lower Chamber)

Overview

District ID
mo-hd-031
State
Missouri
Chamber
Lower chamber
District Code
031
Land Area
13.3 sq mi
Water Area
0.02 sq mi

Boundary

Boundary of Missouri State House District 31

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Jackson County13.31 sq mi99.9%2.2%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Blue Springs city12.97 sq mi97.3%56.9%

Showing all 1 place

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 520,60553.2%2.7%47.5%
MO District 418,13446.8%2.4%52.5%

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

Voters

Registered Voters
27,641
Active Voters
25,952 (93.9%)

Party Registration

PartyVotersShare
Democratic1,6496.0%
Republican2,7259.9%
Unaffiliated11,54841.8%
Other parties850.3%
No party recorded11,63442.1%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2025–20262,942 (10.6%)0 (0.0%)0 (0.0%)
2023–202420,317 (73.5%)0 (0.0%)0 (0.0%)
2021–202213,408 (48.5%)0 (0.0%)0 (0.0%)
2019–202018,336 (66.3%)0 (0.0%)0 (0.0%)
2017–201813,676 (49.5%)0 (0.0%)0 (0.0%)
2015–201614,831 (53.7%)0 (0.0%)0 (0.0%)
2013–20147,324 (26.5%)0 (0.0%)0 (0.0%)
2011–201213,555 (49.0%)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
38,451 (± 1,347)
Median Age
38.2
Median Household Income
$90,504 (± $4,964)
High School Graduate or Higher (age 25+)
96.7%
Bachelor's Degree or Higher (age 25+)
37.0%

Population by Age

GroupPeopleShare
Under 1810,35526.9%
18 to 6422,08257.4%
65 and over6,01415.6%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)2,4556.4%
White, not Hispanic30,46979.2%
Black, not Hispanic2,8377.4%
Asian, not Hispanic5281.4%
American Indian / Alaska Native, not Hispanic280.1%
Native Hawaiian / Pacific Islander, not Hispanic40.0%
Some other race, not Hispanic1070.3%
Two or more races, not Hispanic2,0235.3%

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
37,947
Citizen Voting Age Population (CVAP)
27,628

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic35,84094.4%
Hispanic2,1115.6%
White30,75281.0%
Black3,0628.1%
Asian4991.3%
American Indian / Alaska Native250.1%
Native Hawaiian / Pacific Islander30.0%
Two or More Races2100.6%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic26,43195.7%
Hispanic1,2054.4%
White23,21484.0%
Black2,4378.8%
Asian4701.7%
American Indian / Alaska Native2871.0%
Native Hawaiian / Pacific Islander00.0%
Two or More Races1210.4%

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