see new properties, West-Greenwich get open house Boiling-Springs info, and research neighborhoods on Perham Trulia. Syosset New York Syosset Morrilton Syosset is a hamlet and censusdesignated place Des-Moines near the North Shore of Long Island in the Town of Oyster Bay in Nassau County, New York. The community is served by. Long Island Advertising, eting, Text Messaging. , Long Island Advertising, eting, Text Messaging, eting, Mobile Websites, Mobile Coupons, Social Media Management, Online Ordering.