Edgington, IllinoisEdgington is an unincorporated community in Rock Island County, Illinois, United States. Edgington is located on Illinois Route 192, southwest of Andalusia.HistoryThe Edgington post office closed in 1920. The community's name honors Daniel and John Edgington, pioneer settlers.DemographicsEdgington first appeared as a census designated place in the 2020 U.S. census.EducationIt is in the Rockridge Community Unit School District 300.