15444 -- U.S. ZIP code Municipality (1990): HILLER, Pennsylvania All ZIPs for this municipality (1990): 15444 Population (2000): 555 Housing Units (2000): 257 Land area (2000): 0.531952 sq. miles (1.377749 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.531952 sq. miles (1.377749 sq. km) Located within: Pennsylvania (PA) Location: 40.011146 N, 79.905419 W