How many people live in Sedgwick County, KS?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 536,100 people living in Sedgwick County, KS. That makes Sedgwick County the second-most populous county in Kansas. It is home to 18% of people living in the state.
536K
population of Sedgwick County, KS (2024)
18%
County share of the Kansas population (2024)
About 536,100 people lived in Sedgwick County, KS in 2024.
Population estimates, 2000–2024
What are Sedgwick County, KS’s age demographics?
About 89,400 Sedgwick County residents are aged 65 and older in 2024. That represents 16.7% of its population. For comparison, the age group represents 17.9% of Kansas’s population and 18% in the US overall.
Another 130,300 Sedgwick County residents, or 24.3% of the population, were children under 18. For comparison, the age group represents 23.5% of Kansas’s population and 21.6% in the US overall.
A higher share of Sedgwick County, KS's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Sedgwick County, KS’s racial and ethnic demographics?
Non-Hispanic white residents make up 65.1% of the Sedgwick County, KS population, higher than the national share of 57.5%. Sedgwick County, KS 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, Sedgwick County’s non-Hispanic Black or African American population accounts for 8.7%, below the 12.6% nationwide, and the Hispanic population makes up 17.2% 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.
Sedgwick County, KS has a higher share of a Hispanic population than Kansas as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Sedgwick County, KS is Wichita with about 401,000 residents in 2024.
Cities and towns in Sedgwick County, KS ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Wichita | 400,991 |
| 2. | Derby (pt.) | 17,374 |
| 3. | Bel Aire | 10,066 |
| 4. | Park City (pt.) | 8,407 |
| 5. | Maize (pt.) | 6,879 |
| 6. | Goddard (pt.) | 6,008 |
| 7. | Mulvane (pt.) | 5,991 |
| 8. | Haysville (pt.) | 5,509 |
| 9. | Derby (pt.) | 5,268 |
| 10. | Haysville (pt.) | 5,082 |
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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.
