Niwot, Colorado
Area codes 303, 720, 983 · Population: 4,006
Mountain (MT)
Colorado
Pop. 4,006
Area Codes Serving Niwot
About Niwot, Colorado
Niwot is a city in Colorado that is served by area codes 303, 720, 983. The city has a population of approximately 4,006 residents and is located in the Mountain Time Zone.