Helena Valley Northeast, Montana, United States [CDP]; population was 1,585 in 1990; housing units was 517 in 1990; location is 46°42'N 111°57'W; land area is 44.17 square miles (28,266 acres); water area is 4.52 square miles (2,893 acres); FIPS code is 35628 [SourceCBP]