63823 -- U.S. ZIP code Municipality (1990): BERTRAND, Missouri All ZIPs for this municipality (1990): 63823 Population (2000): 1156 Housing Units (2000): 537 Land area (2000): 33.734136 sq. miles (87.371008 sq. km) Water area (2000): 0.010541 sq. miles (0.027300 sq. km) Total area (2000): 33.744677 sq. miles (87.398308 sq. km) Located within: Missouri (MO) Location: 36.905584 N, 89.449450 W