Franklin County Flag

Franklin County

State:
Ohio
County Seat:
Columbus

Franklin County's estimated 2025 population is 1,373,703 with a growth rate of 1.28% in the past year according to the most recent United States census data. Franklin County is the largest county in Ohio. The 2010 population was 1,166,218 and has seen a growth of 17.79% since that time.

1,373,703
Total Population
2,582
Population Density (mi²)
1
Population Rank (State)
17.4K 1.28%
Annual Population Growth

Franklin 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)