Clarkson Valley, Missouri, United States [City]; population was 2,508 in 1990; housing units was 792 in 1990; location is 38°38'N 90°36'W; land area is 2.69 square miles (1,719 acres); water area is 0.05 square miles (33 acres); FIPS code is 14176 [SourceCBP]