The Troy Public Library has grown from a collection of 1,000 books to a 40,000-square-foot facility with more than 320,000 items available for checkout. The library moved to its current location in 1971 and circulates more than a million items annually. The Troy Public Library is part of the Suburban Library Cooperative.

In addition to books, the Troy Public Library houses a Teen Resource Center, a children's room and a computer center and offers a Special Needs Collection, audio and video media, digital books, several classes and reading programs, as well as services for job seekers and access to e-resources.

The Troy Public Library continually ranks among the top libraries by Hennen's American Public Library Rating Index for libraries serving populations of 50,000 or more and has received awards from the Library of Michigan and the American Library Association.