Oroville East, California, United States [CDP]; population was 8,462 in 1990; housing units was 3,797 in 1990; location is 39°31'N 121°29'W; land area is 21.12 square miles (13,517 acres); water area is 3.15 square miles (2,016 acres); FIPS code is 54388 [SourceCBP]