Martha Lake, Washington, United States [CDP]; population was 10,155 in 1990; housing units was 3,863 in 1990; location is 47°51'N 122°14'W; land area is 4.91 square miles (3,139 acres); water area is 0.07 square miles (48 acres); FIPS code is 43815 [SourceCBP]
