How many people live in Stephens County, OK?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 44,100 people living in Stephens County, OK. That makes Stephens County the 22nd-most populous county in Oklahoma. It is home to 1.1% of people living in the state.
44.1K
population of Stephens County, OK (2024)
1.1%
County share of the Oklahoma population (2024)
About 44,100 people lived in Stephens County, OK in 2024.
Population estimates, 2000–2024
What are Stephens County, OK’s age demographics?
About 9,400 Stephens County residents are aged 65 and older in 2024. That represents 21.3% of its population. For comparison, the age group represents 17% of Oklahoma’s population and 18% in the US overall.
Another 9,800 Stephens County residents, or 22.2% of the population, were children under 18. For comparison, the age group represents 23.7% of Oklahoma’s population and 21.6% in the US overall.
A higher share of Stephens County, OK's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Stephens County, OK’s racial and ethnic demographics?
Non-Hispanic white residents make up 77.3% of the Stephens County, OK population, higher than the national share of 57.5%. Stephens County, OK also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (5.5%) than the US overall (0.72%).
In contrast, Stephens County’s Hispanic population accounts for 9.5%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 2.1% of the county, compared with 12.6% nationally.
Racial and ethnic make up differ based on location. These figures reflect how people identified their race alone (not in combination with other races), and separate out Hispanic or Latino ethnicity, following Census reporting standards.
Stephens County, OK has a higher share of a non-Hispanic white population than Oklahoma as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Stephens County, OK is Duncan with about 23,200 residents in 2024.
Cities and towns in Stephens County, OK ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Duncan | 23,174 |
| 2. | Marlow | 4,505 |
| 3. | Comanche | 1,397 |
| 4. | Central High | 1,232 |
| 5. | Bray | 997 |
| 6. | Empire City | 736 |
| 7. | Velma | 574 |
| 8. | Loco | 106 |
| 9. | Balance of Stephens County | 11,354 |
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.
Page sources
USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.
