of 18 living with them, 38.8% were married couples living together, 13.7% had a female householder with no husband present, and 43.3% were non-families. 36.3% of all households were made up of individuals, and 13.9% had someone living alone who was 65 years of age or older. The average household size was 2.23 and the average family size was 2.88. In the city, the population was spread out, with 22.0% under the age of 18, 14.2% from 18 to 24, 25.1% from 25 to 44, 21.9% from 45 to 64, and 16.9% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 91.0 males. For every 100 females age 18 and over, there were 87.4 males. The median income for a household in the city was $40,670, and the median income for a family was $56,343. Males had a median income of $42,409 versus $30,208 for females. The per capita income for the city was $21,245. About 11.9% of families and 18% of the population were below the poverty line, including 24.9% of those under age 18 and 11.8% of those age 65 or over. Business Jacksonville is the home of the Eli Bridge Company, manufacturer of Ferris wheels and other amusement rides such as the Scrambler. W.E. Sullivan founded the firm with the introduction of his first portable "Big Eli" Wheel on the Jacksonville Square on May 23, 1900. Jacksonville was once home to the J. Capps & Son Company, one of the largest manufacturers of textiles and clothing in the United States, and owned by the Capps family, which was intermarried with the family of Jacob Bunn and John Whitfield Bunn of Springfield, Illinois, and Chicago. Reynolds Group Holdings (formerly Mobil Plastics, Tenneco, Pactiv) and Nestlé Beverage Co. have facilities in Jacksonville. Education Jacksonville is home to one private four-year college, Illinois College. Illinois College is the second oldest college in Illinois, founded in 1829 (and the first to grant a degree – 1835) by one of the famous Yale Bands—students from Yale College who traveled westward to found new colleges. It briefly served as the state's first medical school from 1843 to 1848, and became co-educational in 1903. Beecher Hall, the first college building erected in Illinois, is named after its first president,Edward Beecher, brother to Henry Ward Beecher and Harriet Beecher Stowe. Jacksonville was also the