Milwaukie, Oregon, United States [City]; population was 18,692 in 1990; housing units was 8,170 in 1990; location is 45°27'N 122°37'W; land area is 4.76 square miles (3,046 acres); water area is 0.02 square miles (12 acres); FIPS code is 48650 [SourceCBP]