There are 20 parishes within the diocese.[2]
St. Paul Cathedral, St. Paul, Alberta
- Rector: Gérard Gauthier
- Associate Rector: André Semusambi
St. Michael, Elk Point, Alberta
St. Gabriel, Athabasca, Alberta
- Pastor: Paulson Kannanaikal, cmi
St. Anne, Barrhead, Alberta
Mission of St. John the Evangelist, Swan Hills, Alberta
- Pastor: John Rohit VC, ims
St. Louis, Bonnyville, Alberta
St. Alphonsus, Boyle, Alberta
Mission of Holy Rosary, Buffalo Lake Métis Settlement, Alberta
St. Dominic, Cold Lake, Alberta
Mission of Our Lady of the Assumption, Cold Lake, Alberta
- Pastor: Limneo Zamora Jr. (Fr. Nong)
St. John the Baptist, Fort McMurray, Alberta
Mission of St. Gabriel, Janvier, Alberta
Mission of St. Vincent, Conklin, Alberta
- Pastor: Augustine Joseph, cmi
- Associate Pastor: Antony Thomas, ims
St. Paul Church, Fort McMurray, Alberta
Mission of Nativity of Blessed Virgin Mary, Fort Chipewyan, Alberta
Mission of St. Julien, Fort MacKay, Alberta
- Pastor: Francis of Assisi Khai Phan
- Associate Pastor: Jayson Durante
St. Catherine, Lac La Biche, Alberta
Mission of Immaculate Heart of Mary, Kikino, Alberta
- Pastor: Aureus Manjares
- Deacon: Pat Murphy
- Deacon: Gordon Taylor
St. Raphael, LeGoff, Alberta
Mission of St. Marguerite d'Youville, Elizabeth Métis Settlement, Alberta
Mission of Our Lady of Good Counsel, Frog Lake Reserve, Alberta
Mission of St. Eugene, Fishing Lake, Alberta
- Pastor: Thomas Dieu Hoang Nguyen
St. Emile, Legal, Alberta
St. Jean de Brebeuf, Mallaig, Alberta
Mission of St. Helen, St. Lina, Alberta
Mission of Our Lady of Mercy, Kehewin, Alberta
- Pastor: Raldy Jhack Diaz (Fr. Jhack)
St. Jean Baptiste, Morinville, Alberta
St. Isidore, Plamondon, Alberta
Mission of St. Theresa of the Child Jesus, Breynat, Alberta
St. Laurent, Brosseau, Alberta
St. Matthias, Goodfish Lake, Alberta
Mission of Sacred Heart, Saddle Lake, Alberta
St. Anne, Thorhild, Alberta
Mission of Our Lady of the Atonement, Smoky Lake, Alberta
Mission of St. Joseph, Radway, Alberta
- Pastor: Sebastian Chittilappilly, cmi
St. Mary of Assumption, Westlock, Alberta
Mission of St. Finnan, Dapp, Alberta
Mission of St. Patrick, Clyde, Alberta
- Pastor: Ambrose Umeohanna, smmm
St. Joseph, Whitecourt, Alberta
Mission of Our Lady of Peace, Fox Creek, Alberta