There are 1 US Post Offices in Camas County serving a total of 970 residents equating to 970 residents per post office. It's estimated that approximately 1,548 packages are handled across the 1 county post offices annually. Camas County is a county in the southern portion of the U.S. state of Idaho. As of the 2010 census, the population was 1,117 making it the second-least populous county in Idaho. The county seat is Fairfield. The county was created by the Idaho Legislature on February 6, 1917, by a partition of Blaine County. It is named for the camas root, or Camassia, a lily-like plant with an edible bulb found in the region, which was used as a food source by Native Americans and settlers. Camas County is included in the Hailey, ID Micropolitan Statistical Area. U.S. Highway 20 runs east-west through the center of the county, at an elevation of just over 5,000 feet (1524 m) above sea level. State Highway 46 runs south to Gooding, connecting to US-20 four miles (6.4 km) east of Fairfield. The Soldier Mountain ski area, opened in 1948, is 12 miles (19 km) north of Fairfield, in the Soldier Mountains of the Sawtooth National Forest."