Ola is an unincorporated community in Gem County, Idaho, United States. It is located 23 mi northeast of Emmett.Ola was established as a post office July 22, 1882, by Carroll Baird. It serves the Upper Squaw Creek Valley.The first post office in this area was "Upper Squaw Creek", established in September 1875, by Carroll Baird. Baird homesteaded along Squaw Creek, less than half a mile west of the present-day site of Ola.Nellie Ireton Mills writes that the Bairds built their cabin where the old Indian trail crosses the creek. The trail was also used by miners and others taking the short cut to, or from, Oregon and the Boise Basin. Prior to the 1875 post office, the mail was delivered by pack horse and snowshoes along the Brownlee Trail from Horseshoe Bend to Warren.