of age or older. The average household size was 2.32 and the average family size was 2.91. The demographic spread showed 17.9% under the age of 18 and 10.8% who were 65 years of age or older; 48.4% of the population identified as male and 51.6% as female. The median age was 30.1 years. The five year American Community Survey completed 2011 gave a median household income of $41,473 (inflation indexed to 2011 dollars) and a median family income of $63,435. Male full-time year round workers had a median income of $42,865, versus $36,351 for females. The per capita income for the county was $25,172; 23.6% of the population was living below the poverty line. Languages , 86.43% of the population spoke English as their primary language, while Spanish was spoken by 6.38%, 1.18% spoke Chinese, 0.57% were speakers of Korean, and 0.52% spoke French as their native language. Education The Alachua County School District and its 47 institutions serve the entire county. Alachua County is also home to the University of Florida and Santa Fe College. Library The Alachua County Library District is an independent special taxing district and the sole provider of public library service to approximately 250,000 citizens of Alachua County. This includes all of the incorporated municipalities in the county. It maintains a library headquarters and four branches in Gainesville. These locations include the Millhopper Branch in northwest Gainesville, the Tower Road Branch in unincorporated Alachua county southwest of Gainesville, the Library Partnership Branch in northeast Gainesville, and the Cone Park Branch in east Gainesville. The district also operates branches in the Alachua County municipalities of Alachua, Archer, Hawthorne, High Springs, Micanopy, Newberry, and Waldo, as well as a branch at the Alachua County Jail. The district's two bookmobiles visit more than 25 locations in the county from two to five times a month. Library history The Alachua County Library District traces its origins to 1905, when the Twentieth Century Club in Gainesville started a subscription library. The Gainesville Public Library, a subscription library operated by the Library Association, opened in 1906. The Twentieth Century Club donated the books from its subscription library, and the new library also received books from the library of the East Florida Seminary, which had been absorbed by the newly founded University of Florida. The Gainesville Public Library became a free library in 1918, supported by funds from city taxes from