Prince William Public Library System (PWPLS) is a public library system started in 1971 and consists of 11 branches that include six full-service branches and five neighborhood branches across Prince William County and the cities of Manassas and Manassas Park. PWPLS serves over 1.4 million visitors in their branches every year including over 1 million website users. In addition, the system provides an average of 3.6 million materials borrowed every year to the residents of the Prince William area.