The mission of the Port Jefferson Free Library is to be a place of lifelong learning where the community gathers to share and obtain open access to information, services and entertainment, through literature, programming, facility use and outreach.
Sachem Public Library serves over 83000 district residents in an area that extends over three townships: Brookhaven, Islip, and Smithtown. Sachem Library cardholders are among the most active in the state with more than three quarters of a million items circulating each year. Sachem Library is governed by a Board consisting of five elected trustees. Each trustee serves a five-year term with one trustee position coming up for election each year.