The Potrero Branch Library is a part of the San Diego County Library that serves 250 residents in the City of Potrero. The Library System maintains 1.4 million volumes and circulates 11.5 million items annually. Potrero Branch provides books, music, CDs, DVDs, public computers, a MakerBot 3D Printer, WiFi, printing/copying services, hold pickup, a meeting room, and library programs, including a Lego Cub and food program for seniors.