Dewey County, Oklahoma
Located in Oklahoma, Dewey County has a population of 4,360 residents and a median age of 38.5 years, making it the #2,942 most populous county out of 3,222 nationwide. In terms of economic indicators, the county has a poverty rate of 14.1%. The median home value is $133,600, and the median household income is $62,569, which is 17% below the national median.
Demographics
Dewey County has a population of 4,360, making it the #2,942 most populous county in the US. The median age is 38.5 years, which is 1.0% below 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 Dewey County is $62,569, ranking #1,842 out of 3,222 counties — 16.7% below the national median. The poverty rate is 14.1% and unemployment stands at 3.5%.
Median Household Income Trend
Rankings →Income Distribution
Industry of Employment
Occupation
Housing
The median home value in Dewey County is $133,600 (-52.6% vs national). Renters pay a median of $912/mo and the homeownership rate is 76.4%.
Median Home Value Trend
Rankings →Household Type
Education
In Dewey County, 22.4% of adults age 25+ hold a bachelor's degree or higher, which is 33.5% below the national average, ranking #1,593 out of 3,222 counties.
Bachelor's Degree or Higher Trend
Rankings →Health & Wellbeing
Life expectancy in Dewey County is 73.0 years. 21.1% of adults report poor or fair health and 15.1% lack health insurance. Data from County Health Rankings (2025).
Life Expectancy Trend
Substance Use
19.3% of adults in Dewey County smoke , 40.8% are obese , and 16.5% report excessive drinking.
Adult Smoking Trend
Safety
. Motor vehicle deaths occur at a rate of 42.3 per 100,000.
Motor Vehicle Deaths Trend
Families & Children
17.8% of children in Dewey County live in poverty . The teen birth rate is 18.1 per 1,000 females age 15–19.
Teen Birth Rate Trend
Civic & Transportation
Voter turnout in Dewey County is 67.5%. The mean commute time is 22.1 min, which is 20.0% below the national average.
Voter Turnout Trend
Mean Commute Time Trend
Rankings →Elections
In the 2024 presidential election, Dewey County voted Republican with a margin of 80.2%. The vote was 9.4% Dem / 89.6% Rep. Compared to 2020, the margin shifted +0.7 toward Democrats .
Vote Share Over Time
About Dewey County, Oklahoma
Dewey County, Oklahoma has a total population of 4,360, making it the 2,942nd most populous county in the United States. The median age in Dewey County is 38.5 years, which is 1.0% below the national median of 38.9 years.
The median household income in Dewey County is $62,569, which ranks #1,842 of 3,222 counties nationwide. This is 16.7% below the national median of $75,149. The poverty rate is 14.1%, higher than the national rate of 12.6%. The unemployment rate stands at 3.5%.
The median home value in Dewey County is $133,600, 52.6% below the national median. Renters in Dewey County pay a median gross rent of $912 per month. The homeownership rate is 76.4%, compared to the national rate of 64.4%.
In Dewey County, 22.4% of residents aged 25 and older hold a bachelor's degree or higher, 33.5% below the national average of 33.7%. Health insurance coverage stands at 87.4% of the population. The average commute time for workers is 22.1 min.
Dewey County is a diverse community. The largest racial or ethnic group is White (non-Hispanic) at 80.8% of the population, followed by Two or More Races (9.4%) and Hispanic or Latino (6.0%).
All data for Dewey 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.