How many people live in Chickasaw County, IA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 11,700 people living in Chickasaw County, IA. That makes Chickasaw County the 65th-most populous county in Iowa. It is home to 0.36% of people living in the state.
11.7K
population of Chickasaw County, IA (2024)
0.36%
County share of the Iowa population (2024)
About 11,700 people lived in Chickasaw County, IA in 2024.
Population estimates, 2000–2024
What are Chickasaw County, IA’s age demographics?
About 2,800 Chickasaw County, IA residents are aged 65 and older in 2024. That represents 23.7% of its population. For comparison, the age group represents 18.9% of Iowa’s population and 18% in the US overall.
Another 2,700 Chickasaw County residents, or 22.9% of the population, were children under 18. For comparison, the age group represents 22.5% of Iowa’s population and 21.6% in the US overall.
A higher share of Chickasaw County, IA's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Chickasaw County, IA’s racial and ethnic demographics?
Non-Hispanic white residents make up 91.9% of the Chickasaw County, IA population, higher than the national share of 57.5%.
In contrast, Chickasaw County’s Hispanic population accounts for 6%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 0.63% 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.
Chickasaw County, IA has a higher share of a non-Hispanic white population than Iowa as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Chickasaw County, IA is New Hampton with about 3,400 residents in 2024.
Cities and towns in Chickasaw County, IA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | New Hampton | 3,433 |
| 2. | Nashua (pt.) | 1,513 |
| 3. | Fredericksburg | 983 |
| 4. | Lawler | 392 |
| 5. | Ionia | 220 |
| 6. | Alta Vista | 219 |
| 7. | North Washington | 107 |
| 8. | Bassett | 42 |
| 9. | Protivin (pt.) | 9 |
| 10. | Balance of Chickasaw County | 4,801 |
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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.
