Niwot is a census-designated place (CDP) in Boulder County, Colorado, United States. It is thirty-three miles (53 km), by road, northwest of the Colorado State Capitol in Denver. The population was 4,006 at the 2010 census. The Niwot Post Office has the ZIP Code 80544.
This locality is named for Arapaho Chief Niwot, a tribal leader in the Boulder area during the nineteenth century. The name means "left-handed". With a per capita income of $39,943, Niwot is ranked as the 17th wealthiest location in Colorado.
Additionally, this locality is recognized for being the headquarters of footwear company, Crocs, Inc.