Oklahoma State House District 40

State Legislative District Profile (Lower Chamber)

Overview

District ID
ok-hd-040
State
Oklahoma
Chamber
Lower chamber
District Code
040
Land Area
17.9 sq mi
Water Area
0 sq mi

Boundary

Boundary of Oklahoma State House District 40

Boundary as GeoJSON

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

Counties

CountyOverlapShare of district landShare of county land
Garfield County17.92 sq mi100.0%1.7%

Showing all 1 county

Places

PlaceOverlapShare of district landShare of place land
Enid city17.92 sq mi100.0%24.2%

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
OK District 339,258100.0%5.0%100.0%

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

Voters

Registered Voters
19,484
Active Voters
15,370 (78.9%)

Party Registration

PartyVotersShare
Democratic3,63218.6%
Republican11,03856.7%
Unaffiliated00.0%
Other parties4,81424.7%
No party recorded00.0%

Turnout by Cycle

CycleGeneralDemocratic PrimaryRepublican Primary
2023–202411,429 (58.7%)0 (0.0%)0 (0.0%)
2021–20227,757 (39.8%)0 (0.0%)0 (0.0%)
2019–202010,157 (52.1%)0 (0.0%)0 (0.0%)
2017–20187,325 (37.6%)0 (0.0%)0 (0.0%)
2015–20168,003 (41.1%)0 (0.0%)0 (0.0%)
2013–20144,296 (22.0%)0 (0.0%)0 (0.0%)
2011–20126,049 (31.0%)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 01/20/2026. These are registered voters, separate from the Census population figures. Counts under 10 are suppressed and shown as "<10".

Demographics

Total Population
37,648 (± 1,296)
Median Age
35.8
Median Household Income
$59,311 (± $2,782)
High School Graduate or Higher (age 25+)
85.8%
Bachelor's Degree or Higher (age 25+)
21.8%

Population by Age

GroupPeopleShare
Under 189,69125.7%
18 to 6422,06458.6%
65 and over5,89315.7%

Population by Race and Hispanic Origin

GroupPeopleShare
Hispanic or Latino (any race)6,77918.0%
White, not Hispanic24,91066.2%
Black, not Hispanic8922.4%
Asian, not Hispanic5471.5%
American Indian / Alaska Native, not Hispanic4121.1%
Native Hawaiian / Pacific Islander, not Hispanic1,7034.5%
Some other race, not Hispanic120.0%
Two or more races, not Hispanic2,3936.4%

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
36,008
Citizen Voting Age Population (CVAP)
26,315

Citizen Population by Race/Ethnicity

GroupCitizensShare
Non-Hispanic29,93183.1%
Hispanic6,07216.9%
White24,93669.3%
Black8892.5%
Asian3270.9%
American Indian / Alaska Native4121.1%
Native Hawaiian / Pacific Islander1,0102.8%
Two or More Races4151.2%

Citizen Voting Age Population by Race/Ethnicity

GroupCVAPShare
Non-Hispanic23,03887.5%
Hispanic3,27812.5%
White20,05376.2%
Black9963.8%
Asian2170.8%
American Indian / Alaska Native1,1824.5%
Native Hawaiian / Pacific Islander3651.4%
Two or More Races2320.9%

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