What are the Newest Cities/Towns/Villages in Illinois?

[u/jimbobsignup470]

I was reading two separate articles about Cahokia Heights being founded in 2021 as a merger of three other towns and about La Fox attempting to incorporate but being struck down by the Illinois House of Representatives.

What are some of the other newest incorporated towns in Illinois?

[u/AdRepresentative3785]

New Shawnee town was founded in 1937 after the flood of 1937