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U.S. ZIP Code 81643
5-digit United States postal code #81643, Mesa, CO
ZIP code 81643 is located in the city (place name) Mesa, сounty Mesa in the state of Colorado. The population in ZIP code 81643 is 793 and the population density is 1.4. ZIP code 81643 refers to сounty Mesa having сounty FIPS 08077, the ratio of people from different counties in this ZIP code is as follows: all county weights - 08077: 100%. In the area of the ZIP code 81643 valid time zone America/Denver.