River Vale, New Jersey, United States [CDP]; population was 9,410 in 1990; housing units was 3,208 in 1990; location is 41°1'N 74°0'W; land area is 4.08 square miles (2,610 acres); water area is 0.23 square miles (150 acres); FIPS code is 63720 [SourceCBP]