Lewis County, Missouri Demographics 2026

Population Overview

Lewis County is located in Missouri with a total population of 9,945. It is the 86th most populous county out of 115 in Missouri.

Age Demographics

The median age in Lewis County is 38.2 years. This is 2% lower than the state median of 38.9 years.

Economy, Income & Housing

The median household income in Lewis County is $52,340. This is 24% lower than the state median of $68,920. Compared to the national median of $78,538, household income here is 33% lower. The poverty rate stands at 15.3%. This is 21% higher than the state poverty rate of 12.6%. The unemployment rate is 6.0%. This is 45% higher than the state rate of 4.1%. The median home value is $118,900. Housing costs are 45% lower than the state median of $215,600. With a home-value-to-income ratio of just 2.3x, Lewis County is one of the most affordable housing markets in the area. 77.0% of occupied housing units are owner-occupied. This homeownership rate is 13% higher than the state average of 67.9%.

Race & Ethnicity

Lewis County has a predominantly White (non-Hispanic) population, comprising 92.0% of all residents. Black or African American residents account for 3.0%. The Black or African American population (3.0%) is well below the state average of 11.0%. The Hispanic or Latino population (1.2%) is well below the state average of 5.1%. The Asian population (0.5%) is well below the state average of 2.1%.

Education

16.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 48% 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 87.5%.