Evergreen, Greenleaf, Grant and Ellington townships contract with the library for service. The total population served is 8,178 persons in seven townships. In 1995 it was determined that the library was in need of more space for its collection and a larger meeting room was needed to accommodate the growing interest in programs held at the library. The district includes the village of Cass City, Elkland Township, Elmwood Township and Novesta Township. The library also contracts with Ellington Township, Evergreen Township, Grant Township and Greenleaf Township for library services.
Membership is open to all interested individuals.
The Friends have worked on many fund-raising projects for the library including the annual magazine and book sales, a bazaar and an afghan sale.