Washington County, Idaho
Washington 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: 11,539 (2024)
ID: 211221
|
County | Official County Government |
Contact: WASHINGTON COUNTY CLERK
PO BOX 670, WEISER ID 83672-0670
|
|
GUS Population: 6,112 (2024)
ID: 207764
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK
55 W IDAHO ST, WEISER ID 83672-1997
|
|
GUS Population: 365 (2024)
ID: 102409
|
Municipal | Municipal Government Within County |
Contact: CITY CLERK TREASURER
PO BOX 220, CAMBRIDGE ID 83610-0220
|
|
CITY OF MIDVALE
GUS Population: 218 (2024)
ID: 124678
|
Municipal | Municipal Government Within County |
Contact: CLERK TREASURER
PO BOX 115, MIDVALE ID 83645-0115
|