Clairton (KLER-tuhn), city (1990 pop. 9,656), Allegheny co., SW Pa., suburb 12 mi/19 km SSE of downtown Pittsburgh, on the Monongahela R.; 40°17'N 79°53'W. Mfg. (bldg. materials, plastic prods., machinery, coke prods.). Coal mines are in the area. Allegheny Co. Airport to NW. Seat of Community Col. of Allegheny Co.–South Campus to NW. Settled 1770, inc. 1903.
