Welcome to St. Patrick's Co-Cathedral, a historic Catholic worship space located in Billings, Montana. Originally established around the turn of the 20th century to serve a growing local parish, this striking Gothic Revival church was completed in 1904 for $64,000. It officially became the co-cathedral for the Diocese of Great Falls-Billings alongside St.
Ann's Cathedral in 1980 under Pope John Paul II. History enthusiasts and architecture lovers will enjoy discovering how the cathedral's interior evolved through several major updates over the decades. During a visit, you can appreciate design details reflecting its mid-century and post-Second Vatican Council renovations, including interior decorative painting completed in a Byzantine style and a rose window gracing the choir loft. You will also see a marble altar, an ambo, and rich wood paneling that were installed during updates in the 1960s and 1970s.
Subsequent developments in the 1990s added new sacristies, a dedicated gathering space, and repositioned the choir to the front of the worship space, creating the unique interior layout you experience today. Whether you are interested in Montana's religious history or early 1900s church architecture, St. Patrick's Co-Cathedral offers a serene, historical stop on your travel itinerary.
What to see at St. Patrick's Co-Cathedral
- Historic Gothic Revival building constructed in 1904
- Co-cathedral seat of the Diocese of Great Falls-Billings designated in 1980
- Interior decorative painting completed in a distinctive Byzantine style
- Beautiful rose window situated in the choir loft area
- Modern sanctuary features including a marble altar, ambo, and wood paneling
Visiting tips
Take time to observe the interior layout, which reflects several historic renovations ranging from 1950s Byzantine-style decorative painting to 1990s structural additions.
How long: 1 hour · Best time: Daytime
How to get there & what’s nearby
St. Patrick's Co-Cathedral is easy to reach on Billings’s public transport, and pairs naturally with ZooMontana. For where to stay, the weather and full itineraries, see our Billings travel guide.
See the full Billings travel guide for where to stay, the best time to visit and the top things to do.