Prairie Ridge, Washington, United States [CDP]; population was 8,278 in 1990; housing units was 2,945 in 1990; location is 47°8'N 122°9'W; land area is 8.48 square miles (5,425 acres); water area is 0.01 square miles (9 acres); FIPS code is 56170 [SourceCBP]
