Clinton County, Missouri Demographics 2026

Population Overview

Clinton County is located in Missouri with a total population of 21,259. It is the 53rd most populous county out of 115 in Missouri.

Age Demographics

The median age in Clinton County is 42.1 years. This is 8% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Clinton County is $70,625. This is 2% higher than the state median of $68,920. Compared to the national median of $78,538, household income here is 10% lower. The poverty rate stands at 12.8%. This is 1% higher than the state poverty rate of 12.6%. The unemployment rate is 4.4%. This is 7% higher than the state rate of 4.1%. The median home value is $204,300. Housing costs are 5% lower than the state median of $215,600. With a home-value-to-income ratio of just 2.9x, Clinton County is one of the most affordable housing markets in the area. 76.1% of occupied housing units are owner-occupied. This homeownership rate is 12% higher than the state average of 67.9%.

Race & Ethnicity

Clinton County has a predominantly White (non-Hispanic) population, comprising 92.2% of all residents. Hispanic or Latino residents account for 2.5%. The Black or African American population (0.7%) is well below the state average of 11.0%. The Asian population (0.4%) is well below the state average of 2.1%.

Education

22.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 29% lower than the state rate of 31.9%. Nationally, 35.0% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 93.7%.