Wilmington Flag

Wilmington

County:
Clinton County
County Seat:
Yes
Area (mi²):
12.942
State:
Ohio

Wilmington is a city located in Clinton County, Ohio. Wilmington has a 2026 population of 12,639. It is also the county seat of Clinton County. Wilmington is currently growing at a rate of 0.29% annually but its population has decreased by -0.17% since the most recent census, which recorded a population of 12,661 in 2020.

12.6K
Total Population
977
Density (mi²)
37 0.29%
Growth

Nearby Cities

Sources

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