Mason County, Washington
Mason 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 |
|---|---|---|---|
|
GUS Population: 69,632 (2024)
ID: 114608
|
County | Official County Government |
Contact: CHAIR
411 N 5TH ST, SHELTON WA 98584-3466
|
|
GUS Population: 10,737 (2024)
ID: 209737
|
Municipal | Municipal Government Within County |
Contact: DIRECTOR OF FINANCIAL SERVICES
525 W COTA ST, SHELTON WA 98584-2200
|