Prehistoric cultural affiliation(s) include Native American and Black Hawk dating back to 1000.
The famous person Abraham Lincoln is associated with one of more of the Rock Island County historic places.
Some of the country's most noteable architects helped create the Rock Island County places including General Thomas J. Rodman, U.S. Army Corps of Engineers, George P. Stauduhar, Almerin Hotchkiss, Olaf Z. Cervin and Leonard M. Drack. Prominent architectural styles found in Rock Island Country are Italianate, Late Gothic Revival and Bungalow/Craftsman.