Cincinnati & Hamilton County Public Library is a beloved institution that relies on both public and private support to provide exceptional services and resources to the community. As a 501(c)(3) organization, the Library Foundation plays a crucial role in this endeavor by accepting monetary donations and managing endowments that directly contribute to programs and services. With over $3 million in support provided over the past decade, the Library Foundation has helped fund initiatives like Summer Learning, homework helpers, and the creation of the MakerSpace at the Downtown Main Library.

Another dedicated organization, the Friends of the Public Library, supports the Library through the sale of gently used books, movies, and music. Members of the Friends receive special benefits and discounts, and their profits have contributed to branch programs, author events, and literacy activities. The Anderson Township Library Association (ATLA) also provides invaluable support through annual book sales, accepting donations of books, music, and movies.

This dedicated volunteer group has donated over $1 million to the Anderson Township and Mt. Washington branch libraries. The Cincinnati & Hamilton County Public Library welcomes donations and encourages community members to support their mission of enriching lives through knowledge and literacy