Rock Island County is a county located in the U.S. state of Illinois, bounded on the west by the Mississippi River. According to the 2020 census, it had a population of 144,672. Its county seat is Roc

Barstow is an unincorporated community in Rock Island County, Illinois, United States. As of the 2020 census, Barstow had a population of 89. Barstow is east of East Moline and Silvis. Barstow is loca