Niwot is an unincorporated town, a post office, and a census-designated place (CDP) located in and governed by Boulder County, Colorado, United States. The CDP is a part of the Boulder, Colorado Metropolitan Statistical Area. The Niwot post office has the ZIP Codes 80503 and 80544. At the United States Census 2020, the population of the Niwot CDP was 4,306.
The old Niwot Tribune office on 2nd Avenue
Boulder County is a county located in the U.S. state of Colorado of the United States. As of the 2020 census, the population was 330,758. The most populous municipality in the county and the county seat is Boulder.
Boulder County Courthouse
View of the eastern and southern borders of Boulder County and adjacent areas in Weld, Broomfield, and Jefferson counties, with north oriented to the left. The city of Boulder is near the lower border. Taken from the International Space Station on July 1, 2022.
Boulder and the mountains to the west of the city