Montgomery is a city located in Kendall County Illinois. With a 2020 population of 19,464, it is the 126th largest city in Illinois and the 1902nd largest city in the United States . Montgomery is currently declining at a rate of -0.44% annually but its population has increased by 5.56% since the most recent census, which recorded a population of 18,438 in 2010. Montgomery reached it's highest population of 19,725 in 2018. Spanning over 10 miles, Montgomery has a population density of 2,102 people per square mile.
The average household income in Montgomery is $103,253 with a poverty rate of 4.25%. The median rental costs in recent years comes to $1,177 per month, and the median house value is $221,500. The median age in Montgomery is 31.5 years, 28.7 years for males, and 33.5 years for females.