Early settlers included German and Irish railroad workers in the 1880s who built homes on stilts to raise them above the often flooded marshlands.

Some maps show a Hog Lake occupying the area of the present day park.

According to data collected by the Chicago Metropolitan Agency for Planning, there were 9,985 people and 3,880 households in Avalon Park.

[4] According to the Pritzker School of Medicine, 12% of residents are uninsured, though 92% report having a consistent primary care provider.

[7] In the Illinois Senate, Avalon Park is divided between the 3rd and 17th Legislative Districts and is currently represented by Democrats Mattie Hunter and Elgie Sims.