North Wantagh is a hamlet and census-designated place in the Town of Hempstead in Nassau County, on the South Shore of Long Island, in New York, United States.

Non-conforming postal codes lead to a general misconception of the actual boundaries of this, and surrounding, areas.

As of the census[4] of 2000, there were 12,156 people, 4,332 households, and 3,404 families residing in the CDP.

18.8% of all households were made up of individuals, and 11.1% had someone living alone who was 65 years of age or older.

[5] Public transportation in North Wantagh is provided by the n54/n55 lines of the Nassau Inter-County Express.