The Upper Darby Township & Sellers Memorial Free Public Library serves over 99,000 residents of Upper Darby Township, Delaware County, Pennsylvania. The library system includes Sellers Memorial Branch, Municipal Branch, and Primos Branch and maintains a collection of roughly 135,590 volumes, with an annual circulation of 340,410 items. Its items include books, music, magazines, newspapers, CDs, DVDs, early learning & STEM kits, board games, video games, and Playaway. The library offers interlibrary loan services, Chromebooks, hotspots, public computers, homebound delivery, faxing/printing/copying/scanning services, test proctoring, and other library programs.