Hollister is located in Twin falls county Idaho with a geographic area of 1.1 square miles. The total population in Hollister is 309 with 48.2% male and 51.8% female. Children under age 5 represent 6.8% of the population, under age 18 equal 23.9% of the population and over age 65 is 10.4% of the population. The median household income is $41,250, per capita income is $21,658. There are a total of 123 housing units with 65.0% owner occupied. Education includes 30.1% of residents that are high school graduates and 10.6% with a bachelor's degree or higher. The average temperature in Hollister in the summer is 65 degrees, and in the winter 24 degrees.