Whiteside County was formed in 1836 out of Jo Daviess and Henry Counties. It was named for General Samuel Whiteside, an Illinois officer in the War of 1812 and Black Hawk War.



Located near  where the Mississippi and Apple rivers come together in northwestern Illinois, the 2,500-acre Mississippi Palisades State Park is rich in American Indian history.

Whiteside county is
located at  200 E. Knox Street
Morrison, IL 61270-2698 it is called
Whiteside County Courthouse