Tredyffrin Public Library, serving an area of 34,000 residents, has a collection of 115,000 books and periodicals; in addition, there are 6,600 CDs, records, cassettes and other audio materials, as well as 5,200 video items, such as DVDs and VHS tapes. Internet terminals are available for use by the general public.
Staffing consists of 24 employees, of whom 8 are fully accredited librarians, plus volunteers. The system comprises one central library and one branch library. Annual expenditures on the library collection total $198,000. Patrons make 300,000 visits annually, and check out materials 480,000 times. Forty percent of all check-outs are children's materials.