Islandia, NY -- U.S. village in New York Population (2000): 3057 Housing Units (2000): 1031 Land area (2000): 2.232055 sq. miles (5.780996 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.232055 sq. miles (5.780996 sq. km) FIPS code: 37840 Located within: New York (NY), FIPS 36 Location: 40.804658 N, 73.172778 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Islandia, NY Islandia