Filer is located in Twin falls county Idaho with a geographic area of 1.0 square miles. The total population in Filer is 2,845 with 49.2% male and 50.8% female. Children under age 5 represent 9.0% of the population, under age 18 equal 29.9% of the population and over age 65 is 20.8% of the population. The median household income is $41,250, per capita income is $19,792. There are a total of 1,124 housing units with 67.7% owner occupied. Education includes 21.5% of residents that are high school graduates and 18.5% with a bachelor's degree or higher. The average temperature in Filer in the summer is 68 degrees, and in the winter 24 degrees.