Nassau County, New York
Nassau County is a county in New York with an estimated population of 1,381,715 in 2023. 66 cities, towns and Census places in it are indexed here.
Largest places in Nassau County
Hempstead 58,225Freeport 43,756Valley Stream 40,007Long Beach 34,595Glen Cove 27,879Rockville Centre 25,578Garden City 22,835Mineola 21,169Lynbrook 20,071Massapequa Park 16,826Floral Park 15,879Westbury 15,739Great Neck 11,007New Hyde Park 10,129East Rockaway 10,010Farmingdale 8,502Malverne 8,417Great Neck Plaza 7,651Williston Park 7,459Cedarhurst 7,285East Hills 7,228Manorhaven 6,901Lawrence 6,747Bayville 6,683Kings Point 5,622North Hills 5,370Sea Cliff 4,995Island Park 4,976Old Westbury 4,833Flower Hill 4,791Muttontown 3,492Port Washington North 3,134Great Neck Estates 3,087Roslyn 2,990Brookville 2,947Lake Success 2,803Munsey Park 2,765Sands Point 2,735Thomaston 2,718East Williston 2,599
About Nassau County
Nassau County is one of the counties of New York. County governments in New York handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.