Kupreanof, Alaska, United States [City]; population was 23 in 1990; housing units was 32 in 1990; location is 56°49'N 132°59'W; land area is 6.17 square miles (3,946 acres); water area is 2.22 square miles (1,418 acres); FIPS code is 42160 [SourceCBP]