Vernon Hills is a city located in Illinois. With a 2020 population of 26,455, it is the 83rd largest city in Illinois and the 1451st largest city in the United States. Vernon Hills is currently declining at a rate of -0.35% annually but its population has increased by 5.34% since the most recent census, which recorded a population of 25,113 in 2010. Vernon Hills reached it's highest population of 26,641 in 2018. Spanning over 8 miles, Vernon Hills has a population density of 3,418 people per square mile.
The average household income in Vernon Hills is $128,936 with a poverty rate of 6.19%. The median rental costs in recent years comes to $1,589 per month, and the median house value is $341,900. The median age in Vernon Hills is 39.1 years, 37.5 years for males, and 40.4 years for females. For every 100 females there are 96.1 males.