4.04%. Of the 4,274 households 30.5% had children under the age of 18 living with them, 47.7% were married couples living together, 5.9% had a female householder with no husband present, and 44.0% were non-families. 12.7% of households were one person and 5.5% were one person aged 65 or older. The average household size was 3.71 and the average family size was 3.45. The age distribution was 18.3% under the age of 18, 57.3% from 18 to 24, 11.9% from 25 to 44, 7.5% from 45 to 64, and 4.9% 65 or older. The median age was 20 years. For every 100 females, there were 82.4 males. For every 100 females age 18 and over, there were 77.0 males. The median household income was $26,965 and the median family income was $36,047. Males had a median income of $27,280 versus $17,592 for females. The per capita income for the city was $9,173. About 13.2% of families and 44.4% of the population were below the poverty line, including 11.7% of those under age 18 and 12.3% of those age 65 or over. Government Politics Rexburg has been referred to as the "reddest place in America," owing to the area's strong conservative majority and political trends. Some political experts have considered Rexburg, Idaho, the true antithesis of San Francisco, America's liberal bastion. Since 1980, no Republican presidential candidate has won less than 57 percent of the county vote. In that same period, Republican presidential candidates polled more than 90 percent of the county's vote on three occasions: Ronald Reagan in 1984, George W. Bush in 2004 and Mitt Romney in 2012. John McCain came close to this level in 2008, drawing 85 percent of the vote. Education Public schools Madison School District 321 is the local school district. The city supports 6 elementary schools; Adams, Burton, Hibbard, Kennedy, Lincoln, and South Fork. Madison Middle School follows the elementary school, serving grades 5–6. Madison Junior High School serves grades 7–9. The two high schools within the city limits are Central High and Madison High School. Higher education Rexburg is home to BYU-Idaho, a private institution operated by the LDS Church. The university began as a small high school-level academy in 1888 and was eventually established as Ricks College, in honor of Mormon pioneer and city founder, Thomas E. Ricks. On August 10, 2001, it officially became a four-year university and assumed the name