Upper Grand Lagoon, Florida, United States [CDP]; population was 7,855 in 1990; housing units was 4,331 in 1990; location is 30°10'N 85°44'W; land area is 8.25 square miles (5,279 acres); water area is 7.67 square miles (4,912 acres); FIPS code is 73312 [SourceCBP]