Delaware County Flag

Delaware County

State:
Ohio
County Seat:
Delaware

Delaware County's estimated 2025 population is 243,200 with a growth rate of 2.2% in the past year according to the most recent United States census data. Delaware County is the 11th largest county in Ohio. The 2010 population was 175,114 and has seen a growth of 38.88% since that time.

243,200
Total Population
549
Population Density (mi²)
11
Population Rank (State)
5.2K 2.2%
Annual Population Growth

Delaware County Population

Demographics

Economics and Income Statistics

Sources

  1. City and Town Population Totals: 2020-2024
  2. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  3. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  4. American Community Survey (2009 - 2013)
  5. Census QuickFacts
  6. Historical Populations of States and Counties (1790 - 1990)