Jefferson Valley-Yorktown, New York, United States [CDP]; population was 14,118 in 1990; housing units was 5,063 in 1990; location is 41°19'N 73°48'W; land area is 6.92 square miles (4,427 acres); water area is 0.08 square miles (51 acres); FIPS code is 38500 [SourceCBP]
