15464 -- U.S. ZIP code Municipality (1990): MILL RUN, Pennsylvania All ZIPs for this municipality (1990): 15464 Population (2000): 1532 Housing Units (2000): 647 Land area (2000): 43.069305 sq. miles (111.548982 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 43.069305 sq. miles (111.548982 sq. km) Located within: Pennsylvania (PA) Location: 39.926509 N, 79.432720 W