DeKalb County, Missouri Demographics 2026

Population Overview

DeKalb County is located in Missouri with a total population of 11,176. It is the 80th most populous county out of 115 in Missouri.

Age Demographics

The median age in DeKalb County is 42.3 years. This is 9% higher than the state median of 38.9 years.

Economy, Income & Housing

The median household income in DeKalb County is $69,093. This is about average than the state median of $68,920. Compared to the national median of $78,538, household income here is 12% lower. The poverty rate stands at 8.6%. This is 31% lower than the state poverty rate of 12.6%. The unemployment rate is 2.3%. This is 44% lower than the state rate of 4.1%. The median home value is $167,500. Housing costs are 22% lower than the state median of $215,600. With a home-value-to-income ratio of just 2.4x, DeKalb County is one of the most affordable housing markets in the area. 72.0% of occupied housing units are owner-occupied. This homeownership rate is 6% higher than the state average of 67.9%.

Race & Ethnicity

DeKalb County has a predominantly White (non-Hispanic) population, comprising 87.0% of all residents. Black or African American residents account for 6.6%. The Hispanic or Latino population (2.3%) is well below the state average of 5.1%. The Asian population (0.7%) is well below the state average of 2.1%.

Education

14.8% of residents aged 25 and older hold a bachelor's degree or higher. This is 54% 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 88.9%.