Clinton County, Ohio Demographics 2026

Population Overview

Clinton County is located in Ohio with a total population of 42,014. It is the 59th most populous county out of 88 in Ohio. The county encompasses 1 Census-designated place.

Age Demographics

The median age in Clinton County is 41.0 years. This is 4% higher than the state median of 39.6 years.

Economy, Income & Housing

The median household income in Clinton County is $68,125. This is 2% lower than the state median of $69,680. Compared to the national median of $78,538, household income here is 13% lower. The poverty rate stands at 14.8%. This is 12% higher than the state poverty rate of 13.2%. The unemployment rate is 4.7%. This is 2% lower than the state rate of 4.9%. The median home value is $192,800. Housing costs are 3% lower than the state median of $199,200. With a home-value-to-income ratio of just 2.8x, Clinton County is one of the most affordable housing markets in the area. 70.5% of occupied housing units are owner-occupied. This homeownership rate is 5% higher than the state average of 67.0%.

Race & Ethnicity

Clinton County has a predominantly White (non-Hispanic) population, comprising 92.1% of all residents. Hispanic or Latino residents account for 2.1%. The Black or African American population (1.8%) is well below the state average of 12.1%. The Hispanic or Latino population (2.1%) is well below the state average of 4.6%. The Asian population (0.7%) is well below the state average of 2.4%.

Education

20.1% of residents aged 25 and older hold a bachelor's degree or higher. This is 35% 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 91.6%.