County Links

Geologic Map

Cities and Towns:
Horseshoe Bend
Idaho City

Bogus Basin
Boise National Forest

Fisheries & Drainage Regions
Salmon-Middle Fork
Salmon-N. Fork to Head
Payette River
Boise River

44.0063 N, 115.7392 W

Land Area
1,908 square miles

County Seat
Idaho City


Established February 4, 1864 with its county seat at Idaho City. Named for the Boise River, which was named by French-Canadian explorers and trappers for the great variety of trees growing along its banks. The Boise Basin, in which Idaho City lies, was one of the richest gold mining districts in the nation after the discovery of gold in 1862. At its peak in the 1860s and 1870s, Idaho City was, for a time, the largest city in the northwest, it was this great influx of people that lead to the establishment of the Idaho Territory.

Official County Website

County Clerk
County Courthouse
Idaho City, ID 83631-0157
Phone: (208) 392-4431
Fax: (208) 392-4473

Visit these Web Sites for more information.