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.

Offering life-enhancing services and programs for all ages.

Library is closed on Sundays from mid-June to early October – Call for more information.

Sunday hours September through May 

Temporarily located within the Chestnut Hill School.

The mission of the Half Hollow Hills Community Library is to offer a welcoming space, both digital and physical, with professional staff, services, programs and materials that provides learning, cultural enrichment and entertainment to the community.

The mission of the Half Hollow Hills Community Library is to offer a welcoming space, both digital and physical, with professional staff, services, programs and materials that provides learning, cultural enrichment and entertainment to the community.