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U.S. ZIP Code 80428
5-digit United States postal code #80428, Clark, CO
ZIP code 80428 is located in the city (place name) Clark, сounty Routt in the state of Colorado. The population in ZIP code 80428 is 706 and the population density is 0.9. ZIP code 80428 refers to сounty Routt having сounty FIPS 08107, the ratio of people from different counties in this ZIP code is as follows: all county weights - 08107: 100%. In the area of the ZIP code 80428 valid time zone America/Denver.