Island park is located in Fremont county Idaho with a geographic area of 6.1 square miles. The total population in Island park is 197 with 55.8% male and 44.2% female. Children under age 5 represent 1.5% of the population, under age 18 equal 5.1% of the population and over age 65 is 40.1% of the population. The median household income is $34,821, per capita income is $26,683. There are a total of 90 housing units with 100.0% owner occupied. Education includes 33.3% of residents that are high school graduates and 31.1% with a bachelor's degree or higher. The average temperature in Island park in the summer is 58 degrees, and in the winter 24 degrees.