The diocese is comprised of 6 geographical areas called Deaneries, each headed by a Dean. There are 40 congregations of which 20 are parishes (self-supporting churches) and the other 20 are non self-supporting (missions). There are currently congregations in Albion, Alton, Belleville, Bloomington, Cairo, Carbondale, Carlinville, Caseyville, Centralia, Champaign, Chesterfield, Danville, Decatur, Edwardsville, Effingham, Glen Carbon, Granite City, Harrisburg, Havana, Jacksonville, Lincoln, Marion, Mattoon, McCleansboro, Morton, Mt. Carmel, Mt. Vernon, Normal, O'Fallon, Olney, Paris, Pekin, Rantoul, Robinson, Salem, Springfield, and West Frankfort. The diocese has recently hired a Church Missioner to begin a church in the Columbia area.