You are here
U.S. ZIP Code 80544
5-digit United States postal code #80544, Niwot, CO
ZIP code 80544 is located in the city (place name) Niwot, сounty Boulder in the state of Colorado. The population in ZIP code 80544 is 111 and the population density is 873.1. ZIP code 80544 refers to сounty Boulder having сounty FIPS 08013, the ratio of people from different counties in this ZIP code is as follows: all county weights - 08013: 100%. In the area of the ZIP code 80544 valid time zone America/Denver.