63901 -- U.S. ZIP code Municipality (1990): POPLAR BLUFF, Missouri All ZIPs for this municipality (1990): 63901 Population (2000): 32598 Housing Units (2000): 14711 Land area (2000): 323.887200 sq. miles (838.863962 sq. km) Water area (2000): 0.394897 sq. miles (1.022779 sq. km) Total area (2000): 324.282097 sq. miles (839.886741 sq. km) Located within: Missouri (MO) Location: 36.759357 N, 90.416897 W