
Duval County
- State:
- Florida
- County Seat:
- Jacksonville
Duval County's estimated 2025 population is 1,058,444 with a growth rate of 1.32% in the past year according to the most recent United States census data. Duval County is the 6th largest county in Florida. The 2010 population was 865,653 and has seen a growth of 22.27% since that time.