Blue Island is a city located in Cook County Illinois. With a 2020 population of 22,549, it is the 107th largest city in Illinois and the 1693rd largest city in the United States . Blue Island is currently declining at a rate of -0.77% annually and its population has decreased by -4.88% since the most recent census, which recorded a population of 23,706 in 2010. Blue Island reached it's highest population of 23,884 in 2013. Spanning over 4 miles, Blue Island has a population density of 5,539 people per square mile.
The average household income in Blue Island is $58,403 with a poverty rate of 17.73%. The median rental costs in recent years comes to $867 per month, and the median house value is $122,700. The median age in Blue Island is 35.7 years, 33.8 years for males, and 37.5 years for females.