Allerton is a village in Sidell Township, Vermilion County, Illinois. A small portion of the village extends into Champaign county. Its population at the 2000 census was 293.
The village is named after Samuel A. Allerto, who was a wealthy landowner in Vermilion County. The village was established on the land he had purchased in 1880. He also instituted several improvements in the area.
The village population predominantly comprises White Americans.