Cities (Indiana)  | Churches (74) |
| Beverly Shores |  St. Ann of the Dunes (English, Lithuanian)  |
| Cedar Lake | Holy Name of Jesus |
| Chesterton | St. Patrick |
| Crown Point | Holy Spirit |
| Crown Point | St. Mary |
| Crown Point | St. Matthias |
| Dyer | St. Joseph |
| Dyer | St. Maria Goretti |
| East Chicago | Holy Trinity (Croatian) |
| East Chicago | Holy Trinity (Hungarian) |
| East Chicago | Our Lady of Guadalupe (Spanish) |
| East Chicago | Sacred Heart |
| East Chicago | St. Mary (English, Spanish) |
| East Chicago | St. Patrick (English, Spanish) |
| East Chicago | St. Stanislaus |
| Fish Lake | St. Anthony of Padua |
| Gary |  Holy Angels (Cathedral) |
| Gary | Holy Rosary |
| Gary | St. Ann |
| Gary | St. Hedwig (English, Polish) |
| Gary | St. Joseph the Worker (Croatian, English) |
| Gary | St. Mark (English, Spanish) |
| Gary | St. Mary of the Lake |
| Gary | Sts. Monica and Luke |
| Griffith | St. Mary |
| Hamlet | Holy Cross |
| Hammond | All Saints (English, Spanish) |
| Hammond | Our Lady of Perpetual Help |
| Hammond | St. Casimir (English, Polish, Spanish) |
| Hammond | St. John Bosco |
| Hammond | St. Joseph |
| Hammond | St. Margaret Mary (English, Spanish) |
| Hebron | St. Helen |
| Highland | Our Lady of Grace |
| Highland | St. James the Less |
| Hobart | St. Bridget |
| Knox | St. Thomas Aquinas |
| Koontz Lake | St. Dominic |
| Kouts | St. Mary |
| LaCrosse | St. Martin of Tours |
| Lake Station | St. Francis Xavier (English, Spanish) |
| LaPorte | Sacred Heart |
| LaPorte | St. Joseph (English, Spanish) |
| LaPorte | St. Peter |
| Lowell | St. Edward (English, Spanish) |
| Merrillville | Our Lady of Consolation |
| Merrillville | St. Andrew the Apostle |
| Merrillville | St. Joan of Arc |
| Merrillville | Sts. Peter and Paul |
| Merrillville | St. Stephen, Martyr |
| Michigan City | Notre Dame |
| Michigan City | Queen of All Saints |
| Michigan City | Sacred Heart |
| Michigan City | St. Mary the Immaculate Conception |
| Michigan City | St. Stanislaus Kostka (English, Latin) |
| Munster |  Carmelite Monastery (English, Latin, Polish) |
| Munster | St. Thomas More |
| New Chicago | Assumption of the Blessed Virgin Mary |
| North Judson | Sts. Cyril and Methodius |
| Otis | St. Mary |
| Portage | Nativity of Our Savior |
| Rolling Prairie | St. John Kanty |
| St. John | Christ’s Passion |
| St. John | St. John the Evangelist (Parish) |
| San Pierre | All Saints |
| Schererville | St. Michael the Archangel |
| Valparaiso | Our Lady of Sorrows |
| Valparaiso | St. Elizabeth Ann Seton |
| Valparaiso | St. Paul (English, Spanish) |
| Wanatah | Sacred Heart |
| Whiting | Immaculate Conception |
| Whiting | Sacred Heart (English, Spanish) |
| Whiting | St. Adalbert (English, Polish) |
| Whiting | St. John the Baptist |
| Cities | Other Churches Within the Diocesan Territory (6) |
| East Chicago |  St. Nicholas (Romanian) |
| Hammond | St. Michael the Archangel (Greek-Melkite) |
| Merrillville | St. Michael (Ruthenian) |
| Munster | St. Josaphat (Ukrainian) |
| Munster | St. Nicholas (Ruthenian) |
| Whiting | St. Mary (Ruthenian) |
Bishop Robert John McClory (60)
