Williamson County, Tennessee

Williamson County profile, demographic data, and geographic information.

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
COUNTY OF WILLIAMSON GUS Population: 269,136 (2024) ID: 175704	County	Official County Government	Contact: BUDGET DIRECTOR 1320 W MAIN ST, STE 125, FRANKLIN TN 37064-3700
CITY OF FRANKLIN GUS Population: 89,142 (2024) ID: 175844	Municipal	Municipal Government Within County	Contact: PLANNING & SUSTAINABILITY DEPARTMENT 109 3RD AVE S, STE 133, FRANKLIN TN 37064-2518
CITY OF BRENTWOOD GUS Population: 45,525 (2024) ID: 175847	Municipal	Municipal Government Within County	Contact: CITY MANAGER PO BOX 788, BRENTWOOD TN 37024-0788
TOWN OF NOLENSVILLE GUS Population: 15,809 (2024) ID: 175846	Municipal	Municipal Government Within County	Contact: TOWN RECORDER/OFFICE MANAGER PO BOX 547, NOLENSVILLE TN 37135-0547
CITY OF FAIRVIEW GUS Population: 10,535 (2024) ID: 134927	Municipal	Municipal Government Within County	Contact: CITY MANAGER PO BOX 69, FAIRVIEW TN 37062-0069
TOWN OF THOMPSONS STATION GUS Population: 9,081 (2024) ID: 175845	Municipal	Municipal Government Within County	Contact: TOWN PLANNER PO BOX 100, THOMPSONS STATION TN 37179-0100