15218 -- U.S. ZIP code Municipality (1990): SWISSVALE, Pennsylvania All ZIPs for this municipality (1990): 15218 Population (2000): 14956 Housing Units (2000): 7733 Land area (2000): 2.471111 sq. miles (6.400149 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.471111 sq. miles (6.400149 sq. km) Located within: Pennsylvania (PA) Location: 40.424336 N, 79.887255 W