Franklin County, Washington

Franklin 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 FRANKLIN GUS Population: 101,238 (2024) ID: 183785	County	Official County Government	Contact: CHAIR 1016 N 4TH AVE, PASCO WA 99301-3706
CITY OF PASCO GUS Population: 81,724 (2024) ID: 114617	Municipal	Municipal Government Within County	Contact: DEPUTY CITY MANAGER PO BOX 293, PASCO WA 99301-0293
CITY OF CONNELL GUS Population: 5,071 (2024) ID: 136106	Municipal	Municipal Government Within County	Contact: CITY ADMINISTRATOR PO BOX 1200, CONNELL WA 99326-1200
CITY OF MESA GUS Population: 388 (2024) ID: 194184	Municipal	Municipal Government Within County	Contact: CITY CLERK PO BOX 146, MESA WA 99343-0146
CITY OF KAHLOTUS GUS Population: 141 (2024) ID: 176821	Municipal	Municipal Government Within County	Contact: CLERK TREASURER PO BOX 100, KAHLOTUS WA 99335-0100