The Diocese of Quincy is an historic and traditionally oriented diocese located in the western portion of Central Illinois. The Diocese includes both small rural mission parishes and urban parishes in the larger communities of Peoria, Quincy, Galesburg, Rock Island, and Moline.

We are small in size and numbers but great in committment to Jesus Christ as Lord and Savior.  Our Bishop is The Right Reverend Keith L. Ackerman, SSC, DD - Eighth Bishop of Quincy, a deeply dedicated servant of the Lord - a true shepherd of this missionary diocese.