Idaho County, Idaho

Idaho 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 IDAHO GUS Population: 17,912 (2024) ID: 124639	County	Official County Government	Contact: CHAIRMAN 320 W MAIN ST, STE 5, GRANGEVILLE ID 83530-1948
CITY OF GRANGEVILLE GUS Population: 3,627 (2024) ID: 162080	Municipal	Municipal Government Within County	Contact: MAYOR 225 W NORTH ST, GRANGEVILLE ID 83530-1798
CITY OF COTTONWOOD GUS Population: 921 (2024) ID: 162079	Municipal	Municipal Government Within County	Contact: CITY CLERK TREASURER PO BOX 571, COTTONWOOD ID 83522-0571
CITY OF KOOSKIA GUS Population: 556 (2024) ID: 124662	Municipal	Municipal Government Within County	Contact: CITY CLERK/TREAS PO BOX 126, KOOSKIA ID 83539-0126
CITY OF RIGGINS GUS Population: 394 (2024) ID: 102394	Municipal	Municipal Government Within County	Contact: CITY CLERK TREAS PO BOX 249, RIGGINS ID 83549-0249
CITY OF STITES GUS Population: 187 (2024) ID: 207758	Municipal	Municipal Government Within County	Contact: CLERK/TREASURER PO BOX 300, STITES ID 83552-0300
CITY OF FERDINAND GUS Population: 139 (2024) ID: 207757	Municipal	Municipal Government Within County	Contact: CITY CLERK PO BOX 115, FERDINAND ID 83526-0115
CITY OF WHITE BIRD GUS Population: 87 (2024) ID: 162081	Municipal	Municipal Government Within County	Contact: MAYOR PO BOX 74, WHITE BIRD ID 83554-0074