Edgemont is located in Fall river county South dakota with a geographic area of 1.4 square miles. The total population in Edgemont is 708 with 45.3% male and 54.7% female. Children under age 5 represent 11.0% of the population, under age 18 equal 26.6% of the population and over age 65 is 26.8% of the population. The median household income is $23,750, per capita income is $18,917. There are a total of 332 housing units with 78.9% owner occupied. Education includes 44.3% of residents that are high school graduates and 12.3% with a bachelor's degree or higher. The average temperature in Edgemont in the summer is 71 degrees, and in the winter 15 degrees.