Suffolk -- U.S. County in New York Population (2000): 1419369 Housing Units (2000): 522323 Land area (2000): 912.198033 sq. miles (2362.581959 sq. km) Water area (2000): 1460.869361 sq. miles (3783.634115 sq. km) Total area (2000): 2373.067394 sq. miles (6146.216074 sq. km) Located within: New York (NY), FIPS 36 Location: 40.833314 N, 73.026232 W Headwords: Suffolk Suffolk, NY Suffolk County Suffolk County, NY