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 2025 population of 12,555. It is also the county seat of Clinton County. Wilmington is currently declining at a rate of -0.17% annually and its population has decreased by -0.88% since the most recent census, which recorded a population of 12,667 in 2020.

The average household income in Wilmington is $64,291 with a poverty rate of 21.23%.The median age in Wilmington is 36.7 years: 34.5 years for males, and 38.4 years for females.

12.6K
Total Population
970
Density (mi²)
-22 -0.17%
Growth

Wilmington Population

Wilmington Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Wilmington includes 86.33% White, 5.05% Black or African American, and smaller percentages for other race, Asian, Native American and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White10,90986.33%
Black or African American6385.05%
Two or more races5844.62%
Other race2822.23%
Asian2011.59%
Native American230.18%

Wilmington Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Wilmington's average per capita income is $39,699. Household income levels show a median of $52,661. The poverty rate stands at 21.23%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$77,500-
Families$68,649$78,313
Households$52,661$64,291
Non Families$45,086$49,982

$39,699

Average Income

$52,661

Median Household Income

21.23%

Poverty Rate

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)