How many people live in Dallas County, IA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 115,300 people living in Dallas County, IA. That makes Dallas County the sixth-most populous county in Iowa. It is home to 3.6% of people living in the state.
115K
population of Dallas County, IA (2024)
3.6%
County share of the Iowa population (2024)
About 115,300 people lived in Dallas County, IA in 2024.
Population estimates, 2000–2024
What are Dallas County, IA’s age demographics?
About 15,600 Dallas County, IA residents are aged 65 and older in 2024. That represents 13.5% of its population. For comparison, the age group represents 18.9% of Iowa’s population and 18% in the US overall.
Another 29,800 Dallas County residents, or 25.8% 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 lower share of Dallas County, IA's population is aged 65 or older than the US as a whole.
Population estimates by age group, (2024)
What are Dallas County, IA’s racial and ethnic demographics?
Non-Hispanic white residents make up 81.4% of the Dallas County, IA population, higher than the national share of 57.5%.
In contrast, Dallas County’s Hispanic population accounts for 7.4%, below the 20% nationwide, and the non-Hispanic Black or African American population makes up 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.
Dallas County, IA has a higher share of a non-Hispanic Asian population than Iowa as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Dallas County, IA is Waukee with about 34,400 residents in 2024.
Cities and towns in Dallas County, IA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Waukee | 34,420 |
| 2. | West Des Moines (pt.) | 24,723 |
| 3. | Urbandale (pt.) | 12,447 |
| 4. | Clive (pt.) | 8,358 |
| 5. | Perry | 8,046 |
| 6. | Adel | 6,763 |
| 7. | Dallas Center | 1,993 |
| 8. | Van Meter | 1,840 |
| 9. | Granger (pt.) | 1,551 |
| 10. | Woodward (pt.) | 1,043 |
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.
