Tybee Island, Georgia, United States [City]; population was 2,842 in 1990; housing units was 2,150 in 1990; location is 32°1'N 80°51'W; land area is 2.54 square miles (1,628 acres); water area is 0.11 square miles (72 acres); FIPS code is 78036 [SourceCBP]