64628 -- U.S. ZIP code Municipality (1990): BROOKFIELD, Missouri All ZIPs for this municipality (1990): 64628 Population (2000): 6283 Housing Units (2000): 3038 Land area (2000): 143.491868 sq. miles (371.642217 sq. km) Water area (2000): 0.318347 sq. miles (0.824515 sq. km) Total area (2000): 143.810215 sq. miles (372.466732 sq. km) Located within: Missouri (MO) Location: 39.792042 N, 93.049738 W