Challis is located in Custer county Idaho with a geographic area of 2.0 square miles. The total population in Challis is 761 with 40.9% male and 59.1% female. Children under age 5 represent 5.3% of the population, under age 18 equal 21.6% of the population and over age 65 is 12.9% of the population. The median household income is $21,640, per capita income is $21,410. There are a total of 391 housing units with 41.9% owner occupied. Education includes 24.0% of residents that are high school graduates and 23.3% with a bachelor's degree or higher. The average temperature in Challis in the summer is 66 degrees, and in the winter 24 degrees.
