The Episcopal Diocese of Quincy was established in 1877 and is 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.
| Title | City |
|---|---|
| Grace Episcopal Church, Galesburg, IL | Galesburg |
| St. James' Episcopal Church, Griggsville, IL | Griggsville |
| St. John's Episcopal Church, Kewanee, IL | Kewanee |
| St. James' Episcopal Church, Lewistown, IL | Lewistown |
| St. George's Episcopal Church, Macomb, IL | Macomb |
| All Saints' Episcopal Church, Moline, IL | Moline |
| Bread of Life Anglican Fellowship, Peoria, IL | Peoria |
| Cathedral Church of St. Paul | Peoria |
| St. Paul's Episcopal Church, Warsaw, IL | Warsaw |