Clarion is an unincorporated community in Bureau County, Illinois, United States.

Clarion is located along a railroad line southwest of Mendota.

Children who live near the railroad crossing known as Clarion attend La Moille schools.

There was once a school house on the southwest corner of the Clarion Blacktop and 2500 N. Avenue.

The area is home to several older homesteads and has gently rolling farmland.