Colwell is a city located in Floyd County, Iowa. Colwell has a 2026 population of 52. Colwell is currently declining at a rate of -1.89% annually and its population has decreased by -3.7% since the most recent census, which recorded a population of 54 in 2020.
The median age in Colwell is 42.5 years: 35.5 years for males, and 60.3 years for females. For every 100 females there are 192.3 males.