How many people live in Marshall County, KS?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 10,000 people living in Marshall County, KS. That makes Marshall County the 39th-most populous county in Kansas. It is home to 0.33% of people living in the state.
9.95K
population of Marshall County, KS (2024)
0.33%
County share of the Kansas population (2024)
About 10,000 people lived in Marshall County, KS in 2024.
Population estimates, 2000–2024
What are Marshall County, KS’s age demographics?
About 2,400 Marshall County residents are aged 65 and older in 2024. That represents 24% of its population. For comparison, the age group represents 17.9% of Kansas's population and 18% in the US overall.
Another 2,400 Marshall County residents, or 24% 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 Marshall County, KS's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Marshall County, KS’s racial and ethnic demographics?
Non-Hispanic white residents make up 93.2% of the Marshall County, KS population, higher than the national share of 57.5%.
In contrast, Marshall County’s Hispanic population accounts for 3.3%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 0.67% 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.
Marshall 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 Marshall County, KS is Marysville with about 3,400 residents in 2024.
Cities and towns in Marshall County, KS ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Marysville | 3,422 |
| 2. | Blue Rapids | 921 |
| 3. | Frankfort | 726 |
| 4. | Waterville | 650 |
| 5. | Axtell | 405 |
| 6. | Franklin | 275 |
| 7. | Marysville | 255 |
| 8. | Logan | 247 |
| 9. | Herkimer | 217 |
| 10. | Beattie | 202 |
Keep exploring
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.
