How many people live in Sebastian County, AR?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 130,000 people living in Sebastian County, AR. That makes Sebastian County the sixth-most populous county in Arkansas. It is home to 4.2% of people living in the state.
130K
population of Sebastian County, AR (2024)
4.2%
County share of the Arkansas population (2024)
About 130,000 people lived in Sebastian County, AR in 2024.
Population estimates, 2000–2024
What are Sebastian County, AR’s age demographics?
About 23,100 Sebastian County residents are aged 65 and older in 2024. That represents 17.7% of its population. For comparison, the age group represents 18.2% of Arkansas's population and 18% in the US overall.
Another 30,400 Sebastian County residents, or 23.3% of the population, were children under 18. For comparison, the age group represents 22.8% of Arkansas’s population and 21.6% in the US overall.
A higher share of Sebastian County, AR's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Sebastian County, AR’s racial and ethnic demographics?
Non-Hispanic white residents make up 66.3% of the Sebastian County, AR population, higher than the national share of 57.5%. Sebastian County, AR also has a larger share of people identifying as non-Hispanic two or more races (3.6%) than the US overall (2.5%).
In contrast, Sebastian County’s non-Hispanic Black or African American population accounts for 6.6%, below the 12.6% nationwide, and the Hispanic population makes up 16.8% 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.
Sebastian County, AR has a higher share of a Hispanic population than Arkansas as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Sebastian County, AR is Fort Smith with about 90,500 residents in 2024.
Cities and towns in Sebastian County, AR ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Fort Smith | 90,507 |
| 2. | Greenwood | 9,730 |
| 3. | Barling | 5,284 |
| 4. | Lavaca | 2,528 |
| 5. | Hackett | 844 |
| 6. | Mansfield (pt.) | 683 |
| 7. | Bonanza | 607 |
| 8. | Hartford | 498 |
| 9. | Huntington | 488 |
| 10. | Central City | 470 |
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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.
