How many people live in Kay County, OK?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 43,400 people living in Kay County, OK. That makes Kay County the 23rd-most populous county in Oklahoma. It is home to 1.1% of people living in the state.
43.4K
population of Kay County, OK (2024)
1.1%
County share of the Oklahoma population (2024)
About 43,400 people lived in Kay County, OK in 2024.
Population estimates, 2000–2024
What are Kay County, OK’s age demographics?
About 8,600 Kay County, OK residents are aged 65 and older in 2024. That represents 19.9% of its population. For comparison, the age group represents 17% of Oklahoma’s population and 18% in the US overall.
Another 10,600 Kay County residents, or 24.4% 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 Kay County, OK's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Kay County, OK’s racial and ethnic demographics?
Non-Hispanic white residents make up 71% of the Kay County population, higher than the national share of 57.5%. Kay County also has a larger share of people identifying as non-Hispanic American Indian and Alaska Native (10.1%) than the US overall (0.72%).
In contrast, Kay County’s non-Hispanic Black or African American population accounts for 2%, below the 12.6% nationwide, and the Hispanic population makes up 9.5% of the county, compared with 20% 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.
Kay 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 Kay County, OK is Ponca City with about 24,200 residents in 2024.
Cities and towns in Kay County, OK ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Ponca City | 24,234 |
| 2. | Blackwell | 6,016 |
| 3. | Tonkawa | 2,988 |
| 4. | Newkirk | 2,243 |
| 5. | Kaw City | 327 |
| 6. | Braman | 164 |
| 7. | Kildare | 86 |
| 8. | Balance of Kay County | 7,379 |
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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.
