Castle Pines is a city located in Colorado. With a 2020 population of 10,361, it is the 47th largest city in Colorado and the 3020th largest city in the United States. Castle Pines is currently declining at a rate of -0.70% annually but its population has increased by since the most recent census, which recorded a population of in 2010. Castle Pines reached it's highest population of 10,687 in 2014. Spanning over 10 miles, Castle Pines has a population density of 1,080 people per square mile.
The average household income in Castle Pines is $192,062 with a poverty rate of 2.14%. The median rental costs in recent years comes to $1,609 per month, and the median house value is $598,600. The median age in Castle Pines is 42 years, 42.3 years for males, and 41.8 years for females. For every 100 females there are 93.2 males.