Delaware County Flag

Delaware County

State:
New York
County Seat:
Delhi

Delaware County's 2026 population is estimated at 43,545, reflecting a -0.74% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Delaware County is the 53rd largest county in New York. The 2010 population was 47,888 and has grown -9.07% since 2010.

43,545
Total Population
30
Population Density (mi²)
53
Population Rank (State)
-323 -0.74%
Annual Population Growth

Delaware County Population

Demographics

Economics and Income Statistics