Lewis County, MO — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
9,945
Male
5,100
51.3%
Female
4,845
48.7%
Median Age
38.2 yrs
Avg Household Size
2.8
Foreign Born
0.9%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher10.5%
High School or Higher39.0%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.3%
Disability
0.0%
Non-English Home
8.0%
Married
36.8%
Lewis County, MO has a population of 9,945 according to 2023 Census Bureau estimates. The median age is 38.2 years. The largest racial or ethnic group is White at 92.2% of the population. 10.5% of residents hold a bachelor's degree or higher. 0.9% of residents are foreign-born.