The Farmingdale Public Library, serving the residents of U.F.S.D. #22, has as its primary mission:
1. Enhancing the cultural, recreational and educational needs of all the community by serving as a center for print and non print materials.
2. Facilitating access to information and knowledge through cooperation with other libraries and educational institutions.
3. Providing meeting space for local groups and organizations interested in the cultural, recreational and educational development of the citizens of the community.
Farmingdale Public Library is a member of the Long Island Library Resources Council.