How many people live in Miami County, KS?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 35,700 people living in Miami County, KS. That makes Miami County the 13th-most populous county in Kansas. It is home to 1.2% of people living in the state.
35.7K
population of Miami County, KS (2024)
1.2%
County share of the Kansas population (2024)
About 35,700 people lived in Miami County, KS in 2024.
Population estimates, 2000–2024
What are Miami County, KS’s age demographics?
About 6,900 Miami County residents are aged 65 and older in 2024. That represents 19.3% of its population. For comparison, the age group represents 17.9% of Kansas’s population and 18% in the US overall.
Another 8,100 Miami County residents, or 22.7% 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 lower share of Miami County, KS's population is aged 25–44 than the US as a whole.
Population estimates by age group, (2024)
What are Miami County, KS’s racial and ethnic demographics?
Non-Hispanic white residents make up 90.6% of the Miami County, KS population, higher than the national share of 57.5%.
In contrast, Miami County’s Hispanic population accounts for 4.5%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 1.2% 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.
Miami County, KS has a higher share of a non-Hispanic white population than Kansas as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Miami County, KS is Paola with about 5,800 residents in 2024.
Cities and towns in Miami County, KS ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Paola | 5,835 |
| 2. | Louisburg | 5,266 |
| 3. | Osawatomie | 4,187 |
| 4. | Spring Hill (pt.) | 3,843 |
| 5. | Marysville | 2,491 |
| 6. | Richland | 2,071 |
| 7. | Wea | 2,051 |
| 8. | Middle Creek | 1,846 |
| 9. | Ten Mile | 1,584 |
| 10. | Valley | 1,344 |
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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.
