Isle of Palms, South Carolina, United States [City]; population was 3,680 in 1990; housing units was 3,063 in 1990; location is 32°48'N 79°45'W; land area is 4.47 square miles (2,858 acres); water area is 1.09 square miles (697 acres); FIPS code is 36115 [SourceCBP]