Location Information 44 Lake Avenue Deer Park , NY 11729 Phone: (631) 586-3000Fax Number: (631) 586-3006Contact Email: mail@deerparklibrary.orgVisit our website: Deer Park Public Library Hours of operation Monday: 9:00 - 9:00 Tuesday: 9:00 - 9:00 Wednesday: 9:00 - 9:00 Thursday: 9:00 - 9:00 Friday: 9:00 - 6:00 Saturday: 9:00 - 5:00 Sunday: 12:00 - 4:00 Copy Permalink: https://portal.suffolklibrarysystem.org/node/70 View Printer-friendly Send by email