Coral, IllinoisCoral is an Unincorporated community village and census-designated place in McHenry County, Illinois, United States. It was named a CDP before the 2020 census, at which time it had a population of 16.GeographyCoral is located at the intersections of US Highway 20 with East Coral Road and West Coral Road.DemographicsCoral first appeared as a census designated place in the 2020 U.S. census.