25081 -- U.S. ZIP code Municipality (1990): FOSTER, West Virginia All ZIPs for this municipality (1990): 25081 Population (2000): 607 Housing Units (2000): 266 Land area (2000): 10.373927 sq. miles (26.868347 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 10.373927 sq. miles (26.868347 sq. km) Located within: West Virginia (WV) Location: 38.092103 N, 81.758553 W