Challis
Market InsightsChallis is the largest city in Custer County, Idaho, United States. It is the county seat and its population was 1,081 at the 2010 census, up from 909 in 2000.
Challis is the largest city in Custer County, Idaho, United States. It is the county seat and its population was 1,081 at the 2010 census, up from 909 in 2000.
