Clayton is a town in Custer County, Idaho, United States.

[6] This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters.

[7] Clayton is located on State Highway 75, between Stanley (west) and Challis (northeast).

50.0% of all households were made up of individuals, and 25% had someone living alone who was 65 years of age or older.

33.3% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older.

There were no families and 15.8% of the population living below the poverty line, including no under eighteens and none of those over 64.