Alsip is located in Cook county Illinois with a geographic area of 6.5 square miles. The total population in Alsip is 18,843 with 47.6% male and 52.4% female. Children under age 5 represent 5.2% of the population, under age 18 equal 23.5% of the population and over age 65 is 19.4% of the population. The median household income is $58,768, per capita income is $30,308. There are a total of 7,796 housing units with 62.7% owner occupied. Education includes 28.3% of residents that are high school graduates and 22.1% with a bachelor's degree or higher. The average temperature in Alsip in the summer is 74 degrees, and in the winter 27 degrees.