| Cities (Idaho) | Churches (109)  |
| Lewiston | All Saints  |
| Jerome | Ascension (Monastery)  |
| Ferdinand | Assumption  |
| Aberdeen | Blessed Sacrament (English, Spanish)  Parish of the Presentation of the Lord |
| Montpelier | Blessed Sacrament  Good Shepherd Catholic Communites |
| Idaho Falls | Christ the King  St. John Paul II Parish |
| Fruitland | Corpus Christi (English, Spanish)  |
| Driggs | Good Shepherd (English, Spanish)  |
| Meridian | Holy Apostles  |
| Keuterville | Holy Cross  |
| Cambridge | Holy Rosary (English, Spanish)  |
| Idaho Falls | Holy Rosary  St. John Paul II Parish |
| Nezperce | Holy Trinity  |
| Buhl | Immaculate Conception (English, Spanish)  |
| Fairfield | Immaculate Conception  |
| St. Anthony | Mary Immaculate (English, Spanish)  |
| Mountain Home | Our Lady of Good Counsel (English, Spanish)  |
| Twin Falls | Our Lady of Guadalupe  |
| Glenns Ferry | Our Lady of Limerick (English, Spanish)  |
| Lava Hot Springs | Our Lady of Lourdes  Good Shepherd Catholic Communites |
| Lewiston | Our Lady of Lourdes  All Saints Parish |
| Harrison | Our Lady of Perpetual Help  |
| Plummer | Our Lady of Perpetual Help  |
| Silver City | Our Lady of Tears  |
| McCall | Our Lady of the Lake  |
| Boise | Our Lady of the Rosary  |
| Sun Valley | Our Lady of the Snows  |
| Caldwell | Our Lady of the Valley (English, Spanish)  |
| Pierce | Our Lady of Woodland  |
| Oreana | Our Lady Queen of Heaven  |
| Boise | Risen Christ  |
| Boise | Sacred Heart  |
| Clark Fork | Sacred Heart  |
| DeSmet | Sacred Heart  |
| Emmett | Sacred Heart  |
| Lapwai | Sacred Heart  |
| White Bird | Sacred Heart  |
| Parma | Sacred Hearts of Jesus and Mary  |
| Weiser | St. Agnes (English, Spanish)  |
| Wallace | St. Alphonsus  |
| Arco | St. Ann  |
| Bonners Ferry | St. Ann  |
| Mud Lake | St. Ann  St. John Paul II Parish |
| Greencreek | St. Anthony  |
| Roberts | St. Anthony  St. John Paul II Parish |
| Wendell | St. Anthony (English, Portuguese)  |
| Pocatello | St. Anthony of Padua (English, Spanish)  Holy Spirit Catholic Community |
| Moscow | St. Augustine  University of Idaho St. John Paul II Chapel |
| Mackay | St. Barbara  |
| Blackfoot | St. Bernard  |
| Priest Lake | St. Blanche  |
| Bruneau | St. Bridget  |
| Hagerman | St. Catherine  |
| Kamiah | St. Catherine of Siena  |
| Priest River | St. Catherine of Siena  |
| Salmon | St. Charles  |
| Hailey | St. Charles Borromeo (English, Spanish)  |
| Twin Falls | St. Edward the Confessor  |
| Gooding | St. Elizabeth (English, Spanish)  |
| Post Falls | St. George  |
| Grand View | St. Henry (Spanish)  |
| Homedale | St. Hubert  |
| Lewiston | St. James  All Saints Parish |
| Jerome | St. Jerome (English, Spanish)  |
| Riggins | St. Jerome  |
| Coeur d’Alene | St. Joan of Arc (Latin)  |
| Pingree | St. John  Parish of the Presentation of the Lord |
| Boise | St. John the Evangelist (Cathedral)  |
| Culdesac | St. Joseph  |
| Idaho City | St. Joseph  |
| Leadore | St. Joseph  |
| Melba | St. Joseph  |
| Pocatello | St. Joseph  Holy Spirit Catholic Community |
| Sandpoint | St. Joseph  |
| Spirit Lake | St. Joseph  |
| Garden Valley | St. Jude  |
| Council | St. Jude the Apostle  |
| Fort Hall | St. Kateri Tekakwitha  |
| Cascade | St. Katherine Drexel  |
| Challis | St. Louise  |
| Boise | St. Mark  |
| American Falls | St. Mary (English, Spanish)  Parish of the Presentation of the Lord |
| Boise | St. Mary (English, Spanish)  |
| Cottonwood | St. Mary  |
| Genesee | St. Mary  |
| Moscow | St. Mary  |
| Potlatch | St. Mary  |
| Soda Springs | St. Mary  Good Shepherd Catholic Communites |
| St. Maries | St. Mary Immaculate  |
| Mullan | St. Michael  |
| Worley | St. Michael  |
| Rupert | St. Nicholas (English, Spanish)  |
| Rexburg | St. Patrick (English, Spanish)  |
| Boise | St. Paul  Boise State University |
| Chubbuck | St. Paul  |
| Malad City | St. Paul  Good Shepherd Catholic Communites |
| Nampa | St. Paul (English, Spanish)  |
| Preston | St. Peter (English, Spanish)  Good Shepherd Catholic Communites |
| Shoshone | St. Peter  |
| Grangeville | Sts. Peter and Paul  |
| Coeur d’Alene | St. Pius X  |
| Kellogg | St. Rita  |
| Lewiston | St. Stanislaus  All Saints Parish |
| Rathdrum | St. Stanislaus  |
| Orofino | St. Theresa  |
| Burley | St. Therese Little Flower (English, Spanish)  |
| Coeur d’Alene | St. Thomas the Apostle  |
| Island Park | (Chapel of the Pines)  |
| Stanley | (Stanley Memorial Chapel)  |
| Cities | Other Churches Within the Diocesan Territory (1)  |
| Mountain Home AFB | St. Mary  |