- All theatres in purple type and/or with website links are active League of Historic American Theatres members.
- Theatres are sorted first by city, then by theatre name.
Alberta Bair Theater (Billings)
Built: 1934 Seats: 1,414
Babcock Theatre (Billings)
Built: 1908 Seats: 800
Ellen Theatre (Bozeman)
Built: 1919 Seats: 600
Rialto Theatre (Deer Lodge)
Built: 1921 Seats: 740
Grandstreet Theatre (Helena)
Built: 1901
Wilma Theatre (Missoula)
Built: 1921 Seats: 1,063
Hi-Line Theatre (Rudyard)
Built: 1949
