Columbia County, Washington
Columbia 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: 4,025 (2024)
ID: 114606
|
County | Official County Government |
Contact: CHAIRMAN
114 S 2ND ST, DAYTON WA 99328-1341
|
|
GUS Population: 2,471 (2024)
ID: 176817
|
Municipal | Municipal Government Within County |
Contact: MAYOR
111 S 1ST ST, DAYTON WA 99328-1306
|
|
GUS Population: 138 (2024)
ID: 176818
|
Municipal | Municipal Government Within County |
Contact: CLERK TREAS
PO BOX 276, STARBUCK WA 99359-0276
|