Donora, Pennsylvania, United States [Borough]; population was 5,928 in 1990; housing units was 2,957 in 1990; location is 40°11'N 79°52'W; land area is 1.90 square miles (1,216 acres); water area is 0.15 square miles (95 acres); FIPS code is 19536 [SourceCBP]