Keystone is a city located in Colorado. Keystone has a 2020 population of 978. Keystone is currently declining at a rate of 0.00% annually and its population has decreased by -9.36% since the most recent census, which recorded a population of 1,079 in 2010. Keystone reached it's highest population of 1,243 in 2014.
The average household income in Keystone is $124,124 with a poverty rate of 20.65%. The median rental costs in recent years comes to $958 per month, and the median house value is $756,500. The median age in Keystone is 39.8 years, 54.8 years for males, and 34.9 years for females. For every 100 females there are 55.0 males.