Zilwaukee, Michigan, United States [City]; population was 1,850 in 1990; housing units was 698 in 1990; location is 43°29'N 83°55'W; land area is 2.22 square miles (1,420 acres); water area is 0.09 square miles (57 acres); FIPS code is 89320 [SourceCBP]