15024 -- U.S. ZIP code Municipality (1990): CHESWICK, Pennsylvania All ZIPs for this municipality (1990): 15024 Population (2000): 8484 Housing Units (2000): 3583 Land area (2000): 17.426351 sq. miles (45.134039 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 17.426351 sq. miles (45.134039 sq. km) Located within: Pennsylvania (PA) Location: 40.569723 N, 79.832429 W