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U.S. ZIP Code 81639
5-digit United States postal code #81639, Hayden, CO
ZIP code 81639 is located in the city (place name) Hayden, сounty Routt in the state of Colorado. The population in ZIP code 81639 is 2463 and the population density is 1.6. ZIP code 81639 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 81639 valid time zone America/Denver.