15068 -- U.S. ZIP code Municipality (1990): ARNOLD, Pennsylvania All ZIPs for this municipality (1990): 15068 Population (2000): 41690 Housing Units (2000): 19028 Land area (2000): 45.096850 sq. miles (116.800300 sq. km) Water area (2000): 0.005737 sq. miles (0.014858 sq. km) Total area (2000): 45.102587 sq. miles (116.815158 sq. km) Located within: Pennsylvania (PA) Location: 40.571108 N, 79.742266 W