How many people live in Woodbury County, IA?
Updated Apr. 6, 2026Refreshed annually
In 2024, there were about 107,300 people living in Woodbury County, IA. That makes Woodbury County the seventh-most populous county in Iowa. It is home to 3.3% of people living in the state.
107K
population of Woodbury County, IA (2024)
3.3%
County share of the Iowa population (2024)
About 107,300 people lived in Woodbury County, IA in 2024.
Population estimates, 2000–2024
What are Woodbury County, IA’s age demographics?
About 17,400 Woodbury County residents are aged 65 and older in 2024. That represents 16.2% of its population. For comparison, the age group represents 18.9% of Iowa’s population and 18% in the US overall.
Another 27,200 Woodbury County residents, or 25.4% 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 Woodbury County, IA's population is aged under 18 than the US as a whole.
Population estimates by age group, (2024)
What are Woodbury County, IA’s racial and ethnic demographics?
Non-Hispanic white residents make up 65.8% of the Woodbury County population, higher than the national share of 57.5%. Woodbury County also has a larger share of people identifying as Hispanic (20.5%) than the US overall (20%).
In contrast, Woodbury County’s non-Hispanic Black or African American population accounts for 5.7%, below the 12.6% nationwide, and the non-Hispanic Asian population makes up 3% of the county, compared with 6.5% 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.
Woodbury County, IA has a higher share of a Hispanic population than Iowa as a whole.
Population estimates by race and ethnicity, (2024)
The largest city or town in Woodbury County, IA is Sioux City with about 86,900 residents in 2024.
Cities and towns in Woodbury County, IA ranked by population
Population (2024), includes only portions within county
| City or town | Population | |
|---|---|---|
| 1. | Sioux City (pt.) | 86,873 |
| 2. | Sergeant Bluff | 5,335 |
| 3. | Moville | 1,707 |
| 4. | Sloan | 1,078 |
| 5. | Lawton | 949 |
| 6. | Correctionville | 759 |
| 7. | Anthon | 534 |
| 8. | Pierson | 335 |
| 9. | Danbury | 315 |
| 10. | Salix | 303 |
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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.
