Washington County, MO — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
23,483
Male
12,175
51.8%
Female
11,308
48.2%
Median Age
40.2 yrs
Avg Household Size
2.5
Foreign Born
0.8%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher8.7%
High School or Higher39.1%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.5%
Disability
0.0%
Non-English Home
11.7%
Married
44.3%
Washington County, MO has a population of 23,483 according to 2023 Census Bureau estimates. The median age is 40.2 years. The largest racial or ethnic group is White at 92.3% of the population. 8.7% of residents hold a bachelor's degree or higher. 0.8% of residents are foreign-born.