Yorkville is a city located in Kendall County Illinois. It is also the county seat of Kendall County. With a 2020 population of 21,655, it is the 111th largest city in Illinois and the 1737th largest city in the United States . Yorkville is currently growing at a rate of 2.47% annually and its population has increased by 27.98% since the most recent census, which recorded a population of 16,921 in 2010. Yorkville reached it's highest population of 21,655 in 2021. Spanning over 20 miles, Yorkville has a population density of 1,083 people per square mile.
The average household income in Yorkville is $100,176 with a poverty rate of 7.41%. The median rental costs in recent years comes to $1,181 per month, and the median house value is $245,200. The median age in Yorkville is 33.3 years, 34.8 years for males, and 32.5 years for females.