Milestones
Formed: July 26, 19381Pioneer Loop Seeks Eighth Entry, AP via The Desert News, Jul. 28, 1938
Status: Active
First Games: May 2, 19392Indians Take Slugfest From Boise Pilots In Pioneer League Inaugural, Lewiston Morning Tribune, May 3, 1939
Seasons: 87 (as of 2026)
States & Provinces: CA, MT, OR, UT, WA, AL, BC
Leadership
Attendance
Trophy Case
Pioneer League Franchise List
Franchise, Years Active, Pioneer League Champions
Billings Mustangs, 1948-1963, 1950-1957-1959-1962
Billings Mustangs, 1969-Present, 1972-1973-1978-1983-1992-1993-1994-1997-2001-2003-2014
Boise Braves, 1955-1963, 1956-1958-1960
Boise Hawks, 2021-Present, None
Boise Pilots, 1939-1951 & 1954, None
Boise Yankees, 1952-1953, None
Butte Copper Kings, 1978-1985 & 1987-2000, 1981
Caldwell Cubs, 1967-1971, None
Calgary Cardinals, 1977-1978, None
Calgary Expos, 1979-1984, None
Casper Ghosts, 2008-2011, None
Casper Rockies, 2001-2007, None
Gate City Pioneers, 1990, None
Glacier Range Raiders, 2022-Present, None
Grand Junction Rockies, 2012-2022, None
Great Falls Dodgers, 1984-2002, 1988-1989-1990-2002
Great Falls Electrics, 1948-1963, 1951-1954-1961
Great Falls Giants, 1969-1983, 1971-1975-1976
Great Falls Voyagers, 2008-Present, 2008-2011-2018
Great Falls White Sox, 2003-2007, None
Helena Brewers, 1987-2000 & 2003-2018, 1995-1996-2010
Helena Gold Sox, 1984-1986, 1984
Helena Phillies, 1978-1983, None
Idaho Falls A’s, 1982-1984, None
Idaho Falls Angels, 1966-1981, 1970-1974
Idaho Falls Braves, 1986-1991 & 1993-1999, 1998
Idaho Falls Chukars, 2004-Present, 2013
Idaho Falls Eagles, 1985, None
Idaho Falls Gems, 1992, None
Idaho Falls Padres, 2000-2003, 2000
Idaho Falls Russets, 1940-1942 & 1946-1961, 1952
Idaho Falls Yankees, 1962-1965, 1963
Lethbridge Black Diamonds, 1996-1999, 1999
Lethbridge Dodgers, 1975-1983, 1977-1979-1980
Lethbridge Mounties, 1992-1995, None
Long Beach Coast, 2026-Present
Magic Valley Cowboys, 1952-1958 & 1961-1966 & 1968-1971, 1955
Medicine Hat A’s, 1977, None
Medicine Hat Blue Jays, 1978-2002, 1982
Missoula Osprey, 1999-2019, 1999, 2006, 2012, 2015
Missoula PaddleHeads, 2020-Present, None
Missoula Timberjacks, 1956-1960, None
Modesto Roadsters, 2026-Present, None
Oakland Ballers, 2024-Present, None
Ogden Dodgers, 1966-1973, 1966-1967-1968-1969
Ogden Raptors, 1994-Present, 2017
Ogden Reds, 1939-1942 & 1946-1955, 1940-1941
Ogden Spikers, 1974, None
Orem Owlz, 2005-2020, 2005, 2007, 2009, 2016
Pocatello A’s, 1957-1959, None
Pocatello Bannocks in Pioneer League, 1952-1956, None
Pocatello Bannocks, 1961, None
Pocatello Cardinals, 1939-1942 & 1946-1951, 1942-1949
Pocatello Chiefs, 1962-1965, None
Pocatello Gems, 1984-1985, None
Pocatello Giants, 1960, None
Pocatello Giants, 1987-1989, None
Pocatello Pioneers, 1991, None
Pocatello Posse, 1993, None
Provo Angels, 2001-2004, 2004
Rocky Mountain Vibes, 2019-2025, None
Salt Lake City Bees, 1939-1942 & 1946-1957, 1946-1953
Salt Lake City Bees, 1969, None
Salt Lake City Giants, 1967-1969, None
Salt Lake Trappers, 1985-1992, 1985-1986-1987-1991
Travel Team, 2026-Present, None
Treasure Valley Cubs, 1964-1966, 1964-1965
Twin Falls Cowboys, 1939-1942 & 1946-1951, 1939-1947-1948
Yuba-Sutter High Wheelers, 2024-Present, None
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