Cities included in Nassau County: Levittown, Freeport, Hicksville, Valley Stream, East Meadow, Elmont, Long Beach, Baldwin, Uniondale, Franklin Square, Oceanside, Glen Cove, Plainview, Rockville Centre, Garden City, Massapequa, North Bellmore, Merrick, Mineola, West Hempstead, Lynbrook, Syosset, East Massapequa, North Massapequa, North Valley Stream, Wantagh, Roosevelt, Bethpage, Woodmere, Massapequa Park, Port Washington, Bellmore, Floral Park, New Cassel, Westbury, Seaford, North New Hyde Park, South Farmingdale, Jericho, Salisbury, North Merrick, North Wantagh, Great Neck, Inwood, New Hyde Park, East Rockaway, Plainedge, Woodbury, Malverne, Farmingdale, Manhasset, Garden City Park, Williston Park, Great Neck Plaza, Cedarhurst, Hewlett, East Hills, Manorhaven, Lawrence, Bayville, Roslyn Heights, South Valley Stream, Lakeview, Old Bethpage, Kings Point, North Hills, Carle Place, Sea Cliff, Albertson, Island Park, Glen Head, Flower Hill, Old Westbury, Searingtown, Herricks, University Gardens, Garden City South, Manhasset Hills, Glenwood Landing, Locust Valley, Muttontown, South Hempstead, Port Washington North, Roslyn, Brookville, Great Neck Estates, Lido Beach, East Norwich, Lake Success, Munsey Park, Thomaston, Sands Point, East Williston, Barnum Island, Stewart Manor, Bellerose Terrace, Lattingtown, Laurel Hollow, Oyster Bay Cove, South Floral Park, Old Brookville, East Atlantic Beach, Upper Brookville, Roslyn Estates, Atlantic Beach, Harbor Isle, Bay Park, Kensington, Plandome, Great Neck Gardens, Point Lookout, Bellerose, Saddle Rock, Mill Neck, Baxter Estates, Hewlett Harbor, Russell Gardens, Greenvale, Plandome Heights, Woodsburgh, Roslyn Harbor, Matinecock, Plandome Manor, Hewlett Neck, Saddle Rock Estates, Malverne Park Oaks, North Lynbrook, Centre Island, Harbor Hills, Hewlett Bay Park, Cove Neck

Zip Codes included in Nassau County: [Click for zip code level data] 11001, 11003, 11010, 11020, 11021, 11023, 11024, 11030, 11040, 11042, 11050, 11096, 11501, 11507, 11509, 11510, 11514, 11516, 11518, 11520, 11530, 11542, 11545, 11547, 11548, 11549, 11550, 11552, 11553, 11554, 11556, 11557, 11558, 11559, 11560, 11561, 11563, 11565, 11566, 11568, 11569, 11570, 11572, 11575, 11576, 11577, 11579, 11580, 11581, 11590, 11596, 11598, 11709, 11710, 11714, 11732, 11753, 11756, 11758, 11762, 11765, 11771, 11783, 11791, 11793, 11797, 11801, 11803, 11804