15089 -- U.S. ZIP code Municipality (1990): WEST NEWTON, Pennsylvania All ZIPs for this municipality (1990): 15089 Population (2000): 7672 Housing Units (2000): 3287 Land area (2000): 23.560638 sq. miles (61.021770 sq. km) Water area (2000): 0.002379 sq. miles (0.006161 sq. km) Total area (2000): 23.563017 sq. miles (61.027931 sq. km) Located within: Pennsylvania (PA) Location: 40.211895 N, 79.754838 W