Butler County Flag

Butler County

State:
Ohio
County Seat:
Hamilton

Butler County's estimated 2025 population is 403,491 with a growth rate of 0.99% in the past year according to the most recent United States census data. Butler County is the 7th largest county in Ohio. The 2010 population was 369,111 and has seen a growth of 9.31% since that time.

403,491
Total Population
864
Population Density (mi²)
7
Population Rank (State)
3.9K 0.99%
Annual Population Growth

Butler 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)