Antonito, CO -- U.S. town in Colorado Population (2000): 873 Housing Units (2000): 396 Land area (2000): 0.394607 sq. miles (1.022028 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.394607 sq. miles (1.022028 sq. km) FIPS code: 02355 Located within: Colorado (CO), FIPS 08 Location: 37.077490 N, 106.009489 W ZIP Codes (1990): 81120 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Antonito, CO Antonito