Warren County, Missouri Demographics 2026

Population Overview

Warren County is located in Missouri with a total population of 36,467. It is the 32nd most populous county out of 115 in Missouri.

Age Demographics

The median age in Warren County is 40.8 years. This is 5% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Warren County is $77,989. This is 13% higher than the state median of $68,920. Compared to the national median of $78,538, household income here is about average. The poverty rate stands at 9.3%. This is 26% lower than the state poverty rate of 12.6%. The unemployment rate is 3.8%. This is 8% lower than the state rate of 4.1%. The median home value is $241,200. Housing costs are 12% higher than the state median of $215,600. The home-value-to-income ratio is 3.1x. 82.4% of occupied housing units are owner-occupied. This homeownership rate is 21% higher than the state average of 67.9%.

Race & Ethnicity

Warren County has a predominantly White (non-Hispanic) population, comprising 89.8% of all residents. Hispanic or Latino residents account for 4.0%. The Black or African American population (2.1%) is well below the state average of 11.0%. The Asian population (0.5%) is well below the state average of 2.1%.

Education

19.6% of residents aged 25 and older hold a bachelor's degree or higher. This is 39% 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 89.2%.