St. Charles is a city located in Illinois. St. Charles has a 2020 population of 52,931. St. Charles is currently growing at a rate of 0.57% annually and its population has increased by 3.93% since the most recent census, which recorded a population of 50,928 in 2010. St. Charles reached it's highest population of 52,931 in 2021.
The average household income in St. Charles is $138,644 with a poverty rate of 4.25%. The median rental costs in recent years comes to $1,286 per month, and the median house value is $321,500. The median age in St. Charles is 41.4 years, 40 years for males, and 42.9 years for females.