64001 -- U.S. ZIP code Municipality (1990): ALMA, Missouri All ZIPs for this municipality (1990): 64001 Population (2000): 652 Housing Units (2000): 289 Land area (2000): 40.550912 sq. miles (105.026375 sq. km) Water area (2000): 0.074543 sq. miles (0.193066 sq. km) Total area (2000): 40.625455 sq. miles (105.219441 sq. km) Located within: Missouri (MO) Location: 39.102230 N, 93.535318 W