Williamson County, TX — Demographics & Population
Population, age distribution, race & ethnicity, and education data
Population Overview
Source: Census Bureau ACS (2023)Total Population
643,889
Male
320,207
49.7%
Female
323,682
50.3%
Median Age
37.2 yrs
Avg Household Size
2.7
Foreign Born
14.9%
Race & Ethnicity
Source: Census Bureau ACS (2023)Age Distribution
Source: Census Bureau ACS (2023)Education
Source: Census Bureau ACS (2023)Bachelor's or Higher32.1%
High School or Higher44.1%
Other Demographics
Source: Census Bureau ACS (2023)Veterans
6.0%
Disability
0.0%
Non-English Home
4.0%
Married
46.1%
Williamson County, TX has a population of 643,889 according to 2023 Census Bureau estimates. The median age is 37.2 years. The largest racial or ethnic group is White at 63.8% of the population. 32.1% of residents hold a bachelor's degree or higher. 14.9% of residents are foreign-born.