there were 112.9 males. For every 100 females age 18 and over, there were 119.0 males. The median income for a household in the city was $26,250, and the median income for a family was $30,000. Males had a median income of $22,292 versus $16,250 for females. The per capita income for the city was $15,617. About 21.0% of families and 23.9% of the population were below the poverty line, including 37.9% of those under the age of eighteen and none of those 65 or over. Climate Island Park has a humid continental climate (Dsb), bordering on a subarctic climate (Dsc). Summer days are usually warm, with nights dropping to temperatures around 40, while winters are very cold, with massive yearly snowfall averaging 215 inches (546 cm). It is the site of Idaho's lowest recorded temperature, , on January 18, 1943. Assimilated communities In addition to the former unincorporated community, Island Park, for which the incorporated city was named, the city either originally included, or subsequently added, several other formerly unincorporated communities: Flat Rock (also known as Macks Inn) Lake Last Chance Staley Springs Transportation Airport Island Park is served by Henry's Lake Airport, which is not located within the city limits, but just west and south of the northern end of the city. Roads Island Park is currently served by one U.S. Highway and one state highway; and was previously served by another U.S. Highway and another state highway: Current highways , which runs north–south through the most of the city , which begins in the northern part of the city and runs northwest through the northern part of the city and on to Montana Former highways (1926–1981), the former routing of this highway follows the current route of US-20 this part of Idaho; in 1981 with the completion of Interstate 15, US-191 was rerouted such that it no longer enters Idaho , formerly ran the length of South Big Springs Loop (from US-20 in the Flat Rock area of the city [also known as Macks Inn] easterly to Henrys Fork); this route has since been decommissioned See also List of cities in Idaho References External links Cities in Idaho Cities in Fremont County, Idaho Rexburg, Idaho micropolitan area 1947 establishments in Idaho