What zip codes are in Long Island NY?

The island comprises four counties; Kings and Queens counties (the New York City boroughs of Brooklyn and Queens, respectively) and Nassau County share the western third of the island, while Suffolk County occupies the eastern two thirds of the island.

Area codes 631 and 934 are the telephone area codes in the North American Numbering Plan (NANP) for Suffolk County, New York on Long Island. Area code 631 was created in 1999 in a split from 516; and 934 was added as an overlay in 2016.

The county, together with Suffolk County to its immediate east, are generally referred to as "Long Island". Two cities, three towns, 64 incorporated villages, and more than 60 unincorporated hamlets are located within the county.