The Sacramento Public Library Foundation was created as a nonprofit corporation in 1984 to encourage support for the benefit of the Sacramento Public Library. Foundation funding complements, but does not supplant, the city and county responsibility for library operations. A contribution to the Library Foundation is an investment in the community.

To date, the Foundation has raised more than $9 million to help provide books and materials, technology, reading enrichment programs, bookmobiles, literacy classes, after school homework centers, college and career counseling services, cultural events, and select capital improvements. Many of these dynamic services simply would not have happened without the initial support of the Foundation.

Revenue is generated by the Foundation through an annual giving program supported by more than 16,000 donors; major gifts from individuals including donor-named and donor-advised funds; foundation grants and corporate sponsorships; direct mail; and many planned giving opportunities including bequests, Revocable Living Trusts, Charitable Gift Annuities, Charitable Remainder Trusts, outright gifts of securities and gifts of life insurance.