Bernardsville, New Jersey, United States [Borough]; population was 6,597 in 1990; housing units was 2,561 in 1990; location is 40°44'N 74°36'W; land area is 12.95 square miles (8,287 acres); water area is 0.00 square miles (3 acres); FIPS code is 5590 [SourceCBP]