63135 -- U.S. ZIP code Municipality (1990): FERGUSON, Missouri All ZIPs for this municipality (1990): 63135 Population (2000): 21532 Housing Units (2000): 8704 Land area (2000): 6.019742 sq. miles (15.591059 sq. km) Water area (2000): 0.010115 sq. miles (0.026197 sq. km) Total area (2000): 6.029857 sq. miles (15.617256 sq. km) Located within: Missouri (MO) Location: 38.747850 N, 90.302587 W