Cathedral of Saint Helena
Helena, Montana
The Cathedral of St. Helena is located in Helena, Montana. The Cathedral offers weekend and weekday Mass services, as well as Adoration and Reconciliation times. Weekly Sunday homilies are available online for listening. The parish provides a livestream of Mass and other important events on YouTube. Parishioners can access the Formed app for free, which includes daily reflections, studies, programs, audio content, movies, e-books, and family-friendly children's programming from over 100 content providers. Tours of the Cathedral are available by reservation for groups of 10 or more, and during summer months tours are offered without reservation. The Cathedral features stained glass windows with educational information available.
Denomination
CatholicPhone
(406) 442-5825Services
Mass
Last updated May 2026
500-1,000
estimated members
This is likely one of 9 Catholic congregations in Lewis and Clark County, MT. Catholic accounts for 36% of the county's 80 congregations.
This estimate comes from ARDA 2020 data for churches of this size and denomination in the county.
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