Alsip is a city located in Cook County Illinois. With a 2020 population of 18,431, it is the 134th largest city in Illinois and the 1981st largest city in the United States . Alsip is currently declining at a rate of -0.75% annually and its population has decreased by -4.39% since the most recent census, which recorded a population of 19,277 in 2010. Alsip reached it's highest population of 19,725 in 2000. Spanning over 7 miles, Alsip has a population density of 2,825 people per square mile.
The average household income in Alsip is $74,224 with a poverty rate of 8.30%. The median rental costs in recent years comes to $961 per month, and the median house value is $171,400. The median age in Alsip is 36.9 years, 35.9 years for males, and 38.7 years for females.