| Bishop (2010.04.20 – ...): |
| Cities (Illinois) | Churches (140) |
| White Hall | |
| Shumway | |
| Assumption | |
| Quincy | |
| Springfield | |
| Greenup | |
| Springfield | |
| Tuscola | |
| Wood River | |
| Athens | |
| Decatur | |
| Granite City | |
| Litchfield | |
| Mount Sterling | |
| Jerseyville | |
| Stonington | |
| Springfield | |
| Mattoon | |
| Pierron | |
| Shelbyville | |
| Springfield | |
| Vandalia | |
| Maryville | |
| Decatur | |
| Oblong | |
| Mount Zion | |
| Bethalto | |
| Jacksonville | |
| Illiopolis | |
| Effingham | |
| Franklin | |
| Lillyville | |
| Livingston | |
| Oconee | |
| Springfield | St. Katharine Drexel Parish |
| Villa Grove | |
| Virden | |
| New Berlin | |
| Hillsboro | |
| Springfield | |
| Beardstown | |
| Dieterich | Parish of St. Isidore the Farmer |
| North Arm | |
| Springfield | |
| Brighton | |
| Godfrey | |
| Edgewood | |
| Kampsville | Parish of St. Francis of Assisi |
| Effingham | |
| Quincy | |
| Ashland | |
| Batchtown | Parish of the Blessed Trinity |
| Auburn | Parish of the Holy Cross |
| St. Elmo | |
| Edwardsville | |
| Liberty | |
| Glen Carbon | |
| Casey | |
| Charleston | |
| Altamont | |
| Sullivan | |
| Mendon | |
| Granite City | |
| Marine | |
| Robinson | |
| Arenzville | |
| Springfield | |
| Moweaqua | |
| Springfield | Corpus Christi Priory |
| Teutopolis | |
| Quincy | |
| Jerseyville | |
| Grantfork | |
| Bethany | |
| Decatur | Parish of Sts. James and Patrick |
| Riverton | |
| St. Jacob | |
| Troy | |
| Mount Olive | |
| Arcola | |
| Carrollton | |
| Medora | |
| Sherman | |
| Benld | |
| Island Grove | Parish of St. Isidore the Farmer |
| Meppen | Parish of the Blessed Trinity |
| Quincy | |
| Ramsey | |
| Springfield | |
| Chatham | |
| Rochester | |
| Greenville | |
| Nokomis | |
| Virginia | |
| Venice | Parish of St. Mary and St. Mark |
| Winchester | |
| Alton | Church of the Immaculate Conception |
| Edwardsville | |
| Farmersville | |
| Fieldon | |
| Madison | Parish of St. Mary and St. Mark |
| Marshall | |
| Paris | |
| Pittsfield | |
| St. Elmo | |
| Taylorville | |
| Carlinville | |
| Green Creek | |
| Neoga | |
| Sainte Marie | |
| Brussels | Parish of the Blessed Trinity |
| Morrisonville | |
| Beltrees | |
| Greenfield | |
| Hume | |
| Michael | Parish of St. Francis of Assisi |
| Sigel | |
| Staunton | |
| Pocahontas | |
| Hardin | Parish of St. Francis of Assisi |
| Decatur | Parish of Sts. James and Patrick |
| Girard | |
| Grafton | |
| Pana | |
| Springfield | St. Katharine Drexel Parish |
| Highland | |
| Petersburg | |
| Quincy | |
| Alton | |
| Collinsville | |
| Raymond | |
| Kincaid | |
| Montrose | |
| Quincy | |
| Waverly | |
| Gillespie | |
| Camp Point | |
| Decatur | |
| Newton | |
| Alexander | |
| Cities | Other Churches Within the Diocesan Territory (1) |
| Madison |
Last updated on 2025.12.22
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