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County · Tennessee

Williamson County

269,136Population
8.6 %Change since 2020
3,143Net migration
2.8 %Unemployment rate

Facts

Population
269,136 (2024)
Change since 2020
8.6 %
Net migration
3,143 (2023)
Unemployment rate
2.8 % (2025)
Population base, April 2020
247,777 (2020)
Births
2,363 (2023)
Births per 1,000 residents, 2023
8.8
Deaths
1,629 (2023)
Deaths per 1,000 residents, 2023
6.1
Natural change, 2023
734
International migration
1,054 (2023)
Domestic migration
2,089 (2023)
Net migration per 1,000, 2023
11.7
Postal code
TN
FIPS code
47187

Sources: US Census Bureau — Population Estimates, Bureau of Labor Statistics — LAUS

Unemployment rate, annual average

199020252.82.8
PeriodValue
20252.8 %
20242.7 %
20232.6 %
20222.5 %
20212.7 %
20204.9 %
20192.5 %
20182.6 %
20172.8 %
20163.6 %
20154.0 %
20144.5 %

Population estimates, 2020–2024

20202024269.1K249.6K
PeriodValue
2024269,136
2023265,312
2022261,536
2021256,155
2020249,616