
Dutchess County
- State:
- New York
Dutchess County's estimated 2025 population is 296,232 with a growth rate of -0.15% in the past year according to the most recent United States census data. Dutchess County is the 15th largest county in New York. The 2010 population was 297,721 and has seen a growth of -0.5% since that time.