Williamson County, Tennessee
Population estimates, July 1, 2025, (V2025) 272,061
People
Population
Population estimates, July 1, 2025, (V2025) 272,061
Population estimates, July 1, 2024, (V2024) 269,136
Population estimates base, April 1, 2020, (V2025) 247,790
Population estimates base, April 1, 2020, (V2024) 247,777
Population, percent change - April 1, 2020 (estimates base) to July 1, 2025, (V2025) 9.8%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2024, (V2024) 8.6%
Population, Census, April 1, 2020 247,726
Population, Census, April 1, 2010 183,182
Age and Sex
Persons under 5 years, percent 4.9%
Persons under 18 years, percent 24.8%
Persons 65 years and over, percent 15.9%
Female persons, percent 50.6%
Race and Hispanic Origin
White alone, percent 87.3%
Black alone, percent(a) 4.2%
American Indian and Alaska Native alone, percent(a) 0.3%
Asian alone, percent(a) 6.1%
Native Hawaiian and Other Pacific Islander alone, percent(a) 0.1%
Two or More Races, percent 2.1%
Hispanic or Latino, percent(b) 6.3%
White alone, not Hispanic or Latino, percent 81.6%
Population Characteristics
Veterans, 2020-2024 9,865
Foreign-born persons, percent, 2020-2024 8.5%
Housing
Housing Units, July 1, 2025, (V2025) 103,674
Owner-occupied housing unit rate, 2020-2024 78.8%
Median value of owner-occupied housing units, 2020-2024 $751,900
Median selected monthly owner costs - with a mortgage, 2020-2024 $2,642
Median selected monthly owner costs - without a mortage, 2020-2024 $717
Median gross rent, 2020-2024 $1,969
Building Permits, 2025 1,621
Families & Living Arrangements
Households, 2020-2024 92,214
Persons per household, 2020-2024 2.81
Living in the same house 1 year ago, percent of persons age 1 year+ , 2020-2024 87.8%
Language other than English spoken at home, percent of persons age 5 years+, 2020-2024 9.8%
Computer and Internet Use
Households with a computer, percent, 2020-2024 98.5%
Households with a broadband Internet subscription, percent, 2020-2024 96.0%
Education
High school graduate or higher, percent of persons age 25 years+, 2020-2024 96.3%
Bachelor's degree or higher, percent of persons age 25 years+, 2020-2024 62.7%
Health
With a disability, under age 65 years, percent, 2020-2024 5.3%
Persons without health insurance, under age 65 years, percent 5.7%
Economy
In civilian labor force, total, percent of population age 16 years+, 2020-2024 66.4%
In civilian labor force, female, percent of population age 16 years+, 2020-2024 58.3%
Total accommodation and food services sales, 2022 ($1,000)(c) 1,098,735
Total health care and social assistance receipts/revenue, 2022 ($1,000)(c) 3,509,298
Total transportation and warehousing receipts/revenue, 2022 ($1,000)(c) 856,251
Total retail sales, 2022 ($1,000)(c) 7,073,808
Total retail sales per capita, 2022(c) $27,130
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2020-2024 27.9
Income & Poverty
Median households income (in 2024 dollars), 2020-2024 $135,594
Per capita income in past 12 months (in 2024 dollars), 2020-2024 $66,219
Persons in poverty, percent 4.5%
Businesses
Businesses
Total employer establishments, 2023 8,707
Total employment, 2023 149,544
Total annual payroll, 2023 ($1,000) 11,710,562
Total employment, percent change, 2022-2023 2.8%
Total nonemployer establishments, 2023 34,330
All employer firms, Reference year 2023 6,484
Male-owned employer firms, Reference year 2023 S
Female-owned employer firms, Reference year 2023 1,370
Minority-owned employer firms, Reference year 2023 732
Nonminority-owned employer firms, Reference year 2023 S
Veteran-owned employer firms, Reference year 2023 224
Nonveteran-owned employer firms, Reference year 2023 S
Geography
Geography
Population per square mile, 2020 425.0
Population per square mile, 2010 314.4
Land area in square miles, 2020 582.86
Land area in square miles, 2010 582.60
FIPS Code 47187