How many people live in Butler County, IA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 14,200 people living in Butler County, IA. That makes Butler County the 57th-most populous county in Iowa. It is home to 0.44% of people living in the state.
14.2K
population of Butler County, IA (2024)
0.44%
County share of the Iowa population (2024)
About 14,200 people lived in Butler County, IA in 2024.
Population estimates, 2000–2024
What are Butler County, IA’s age demographics?
About 3,400 Butler County, IA residents are aged 65 and older in 2024. That represents 24.2% of its population. For comparison, the age group represents 18.9% of Iowa’s population and 18% in the US overall.
Another 3,100 Butler County residents, or 22% 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 Butler County, IA's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Butler County, IA’s racial and ethnic demographics?
Non-Hispanic white residents make up 94.6% of the Butler County, IA population, higher than the national share of 57.5%.
In contrast, Butler County’s Hispanic population accounts for 1.9%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 0.4% 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.
Butler 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 Butler County, IA is Parkersburg with about 2,000 residents in 2024.
Cities and towns in Butler County, IA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Parkersburg | 1,986 |
| 2. | Shell Rock | 1,265 |
| 3. | Clarksville | 1,238 |
| 4. | Aplington | 1,088 |
| 5. | Greene (pt.) | 971 |
| 6. | Allison | 937 |
| 7. | Dumont | 614 |
| 8. | New Hartford | 555 |
| 9. | Bristow | 139 |
| 10. | Aredale | 59 |
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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.
