Incorporated in 1947, Island Park is a minute city in Fremont County, Idaho, United States. According to the 2010 census, the place housed a population of nearly 300. Being a part of the Rexburg Micropolitan Statistical Area, the city covers a total area of 6.77 square miles, based on the reports examined by the United States Census Bureau. The region experiences a humid continental climate with frigid winters and warm summers. Public transport within the area is handled by the Henry's Lake Airport, as well as the US-20 and SH-87 highways. Some formerly unincorporated communities within the area include Staley Springs, Last Chance, Lake, and Flat Rock.