2.35% of the population. There were 79 households, out of which 26.6% had children under the age of 18 living with them, 69.6% were married couples living together, 1.3% had a female householder with no husband present, and 26.6% were non-families. 19.0% of all households were made up of individuals, and 11.4% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.16. In the city, the population was spread out, with 25.8% under the age of 18, 4.2% from 18 to 24, 23.5% from 25 to 44, 27.7% from 45 to 64, and 18.8% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 97.2 males. For every 100 females age 18 and over, there were 113.5 males. The median income for a household in the city was $37,083, and the median income for a family was $41,071. Males had a median income of $37,083 versus $17,813 for females. The per capita income for the city was $18,527. About 3.8% of families and 9.2% of the population were below the poverty line, including 14.3% of those under the age of eighteen and 5.7% of those 65 or over. Trivia The former mayor of Swan Valley Tom Walsh was hired by the NFL's Oakland Raiders American football team to be their offensive coordinator in February 2006. He was previously the offensive coordinator of the organization in the early 1990s. According to an 1868 account, a monster simply dubbed the Swan Valley Monster was sighted in the Snake River. See also List of cities in Idaho References External links Fall Creek Falls, scenic attraction nearby. Atlas Obscura has directions & photos. Cities in Bonneville County, Idaho Cities in Idaho Cities in Idaho Falls metropolitan area