Cary is a city located in McHenry County Illinois. With a 2020 population of 18,529, it is the 132nd largest city in Illinois and the 1972nd largest city in the United States . Cary is currently growing at a rate of 1.26% annually and its population has increased by 1.41% since the most recent census, which recorded a population of 18,271 in 2010. Cary reached it's highest population of 18,529 in 2021. Spanning over 6 miles, Cary has a population density of 2,972 people per square mile.
The average household income in Cary is $117,397 with a poverty rate of 5.09%. The median rental costs in recent years comes to $1,196 per month, and the median house value is $232,500. The median age in Cary is 40.5 years, 39 years for males, and 42.2 years for females.