Wilmington city, Ohio Demographics & Population 2026

Population Overview

Wilmington city is a small city located in Ohio, within Clinton County. The total population is 12,637. It ranks as the 152nd most populous out of 1,264 cities and towns in Ohio.

Age Demographics

The median age in Wilmington city is 36.7 years. This is 7% lower than the state median of 39.6 years. 10.0% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.

Economy, Income & Housing

The median household income in Wilmington city is $52,661. This is 24% lower than the state median of $69,680. Compared to the national median of $78,538, household income here is 33% lower. The poverty rate stands at 21.2%. This is 60% higher than the state poverty rate of 13.2%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 5.0%. This is 3% higher than the state rate of 4.9%. The median home value is $162,700. Housing costs are 18% lower than the state median of $199,200. The home-value-to-income ratio is 3.1x. 56.7% of occupied housing units are owner-occupied. This homeownership rate is 15% lower than the state average of 67.0%.

Race & Ethnicity

Wilmington city has a predominantly White (non-Hispanic) population, comprising 86.0% of all residents. Black or African American residents account for 4.9%. The Black or African American population (4.9%) is well below the state average of 12.1%.

Education

23.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 23% lower than the state rate of 30.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 92.7%.

Data Sources & Methodology

All demographic data for Wilmington city, Ohio is sourced from the U.S. Census Bureau's American Community Survey (ACS) 5-Year Estimates (2019-2023). The ACS collects data from approximately 3.5 million households annually, providing reliable estimates for communities of all sizes. Comparisons are made against Ohio state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,264 Census-designated places in Ohio. For official data, visit data.census.gov.