who was 65 years of age or older. The average household size was 2.96 and the average family size was 3.41. In the city, the population was spread out, with 32.9% under the age of 18, 8.0% from 18 to 24, 29.1% from 25 to 44, 21.9% from 45 to 64, and 8.0% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 94.3 males. For every 100 females age 18 and over, there were 103.8 males. The median income for a household in the city was $27,375, and the median income for a family was $29,688. Males had a median income of $25,313 versus $15,556 for females. The per capita income for the city was $11,870. About 7.8% of families and 11.0% of the population were below the poverty line, including none of those under the age of eighteen or sixty five or over. Education Hollister Elementary School accommodates students ages K-5. After fifth grade, local students attend school in Filer. References Cities in Idaho Cities in Twin Falls County, Idaho Twin Falls, Idaho metropolitan area