Glen Ellyn is a city located in Illinois. With a 2020 population of 27,386, it is the 74th largest city in Illinois and the 1403rd largest city in the United States . Glen Ellyn is currently declining at a rate of -0.60% annually and its population has decreased by -0.23% since the most recent census, which recorded a population of 27,450 in 2010. Glen Ellyn reached it's highest population of 28,239 in 2015. Spanning over 7 miles, Glen Ellyn has a population density of 4,034 people per square mile.
The average household income in Glen Ellyn is $157,279 with a poverty rate of 5.77%. The median rental costs in recent years comes to $1,106 per month, and the median house value is $453,900. The median age in Glen Ellyn is 40.7 years, 39.6 years for males, and 41.7 years for females.