Glendale Heights is a city located in Illinois. With a 2020 population of 33,077, it is the 55th largest city in Illinois and the 1192nd largest city in the United States . Glendale Heights is currently declining at a rate of -0.81% annually and its population has decreased by -3.31% since the most recent census, which recorded a population of 34,208 in 2010. Glendale Heights reached it's highest population of 34,678 in 2013. Spanning over 6 miles, Glendale Heights has a population density of 6,107 people per square mile.
The average household income in Glendale Heights is $82,063 with a poverty rate of 8.54%. The median rental costs in recent years comes to $1,272 per month, and the median house value is $194,400. The median age in Glendale Heights is 33.6 years, 33.3 years for males, and 33.8 years for females.