
Woodbury County
- State:
- Iowa
- County Seat:
- Sioux City
Woodbury County's estimated 2025 population is 106,737 with a growth rate of 0.37% in the past year according to the most recent United States census data. Woodbury County is the 7th largest county in Iowa. The 2010 population was 102,393 and has seen a growth of 4.24% since that time.