Seminole County, Oklahoma
Located in Oklahoma, Seminole County has a population of 23,494 residents and a median age of 39.2 years, making it the #1,710 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 21.7%. The median home value is $99,500, and the median household income is $48,062, which is 36% below the national median.
Demographics
Seminole County has a population of 23,494, making it the #1,710 most populous county in the US. The median age is 39.2 years, which is 0.8% above the national median.
Population Trend
Rankings →Year-over-Year Population Growth
Age & Sex Distribution
Race & Ethnicity
Nativity
Geographic Mobility (Past Year)
Economy
The median household income in Seminole County is $48,062, ranking #2,868 out of 3,222 counties — 36.0% below the national median. The poverty rate is 21.7% and unemployment stands at 6.3%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Seminole County is $99,500 (-64.7% vs national). Renters pay a median of $752/mo and the homeownership rate is 71.0%.
Median Home Value Trend
Rankings →Household Type
Education
In Seminole County, 15.9% of adults age 25+ hold a bachelor's degree or higher, which is 52.9% below the national average, ranking #2,688 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Seminole County is 69.0 years. 25.6% of adults report poor or fair health and 17.9% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
22.8% of adults in Seminole County smoke , 43.0% are obese , and 14.8% report excessive drinking. The drug overdose death rate is 32.3 per 100,000.
Adult Smoking Trend
Safety
The homicide rate in Seminole County is 8.8 per 100,000 and the suicide rate is 35.7 per 100,000. Motor vehicle deaths occur at a rate of 34.1 per 100,000.
Homicide Rate Trend
Families & Children
25.0% of children in Seminole County live in poverty and the infant mortality rate is 9.3 per 1,000 live births. The teen birth rate is 35.9 per 1,000 females age 15–19.
Infant Mortality Trend
Civic & Transportation
Voter turnout in Seminole County is 45.9%. The mean commute time is 26.5 min, which is 4.1% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Seminole County voted Republican with a margin of 49.7%. The vote was 24.3% Dem / 74% Rep. Compared to 2020, the margin shifted 3.4 toward Republicans .
Vote Share Over Time
About Seminole County, Oklahoma
Seminole County, Oklahoma has a total population of 23,494, making it the 1,710th most populous county in the United States. The median age in Seminole County is 39.2 years, which is 0.8% above the national median of 38.9 years.
The median household income in Seminole County is $48,062, which ranks #2,868 of 3,222 counties nationwide. This is 36.0% below the national median of $75,149. The poverty rate is 21.7%, higher than the national rate of 12.6%. The unemployment rate stands at 6.3%.
The median home value in Seminole County is $99,500, 64.7% below the national median. Renters in Seminole County pay a median gross rent of $752 per month. The homeownership rate is 71.0%, compared to the national rate of 64.4%.
In Seminole County, 15.9% of residents aged 25 and older hold a bachelor's degree or higher, 52.9% below the national average of 33.7%. Health insurance coverage stands at 82.9% of the population. The average commute time for workers is 26.5 min.
Seminole County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 62.4% of the population, followed by American Indian (non-Hispanic) (18.0%) and Two or More Races (9.5%).
All data for Seminole County, Oklahoma comes from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates. These figures are estimates based on survey sampling and are subject to margin of error. For the most detailed and up-to-date data, visit the Census Bureau's official data portal.