The Oregon School Activities Association (OSAA) is a non-profit, board-governed organization that regulates high school athletics and competitive activities via athletic conferences in the U.S. state of Oregon, providing equitable competition among its members, both public and private. The OSAA is based in Wilsonville.
History
Originally created in 1918 as the "Oregon State High School Athletic Association", the name changed to the "Oregon School Activities Association", or OSAA, in 1947.
Currently, the OSAA sponsors seventy-four state championships in nineteen interscholastic activities including athletics, music, and forensics and is a member of the National Federation of State High School Associations.
Starting in the 2006–07 school year, the organization's four school classifications (1A, 2A, 3A, 4A) were divided into six classifications (6A, 5A, 4A, 3A, 2A, 1A). This caused some controversy as some school districts complained about the new classifications and sought legal action. OSAA voted to keep a six classification system in 2017.
Classifications and leagues The OSAA divides schools up into classifications and leagues (or conferences).
There are six classifications, with the smallest schools in class 1A and the largest schools in class 6A. Within each classification, there are between five and eight leagues and conferences. Each league or conference has between four and 16 schools. Prior to 2006, there were four classifications (4A, 3A, 2A, 1A), prior to 1990, there were four classifications (AAA, AA, A, B), and prior to 1970, there were either three or four classifications (depending on the sport), but they were designated as A, A-2, B, B-8 for football, A-1, A-2 and B in basketball and A, A-2, & B for baseball.
According to OSAA's classification system for 2026–30, a 1A school has fewer than 65 students, 2A between 66 and 140 students, 3A between 141 and 280 students, 4A between 281 and 580 students, 5A between 581 and 1025 students, and the largest schools, 6A, have 1026 or more students.
As of the 2026–30 season, OSAA's classifications comprise the following:
6A/5A classification Hybrid 6A/5A: Southwest Hybrid Ashland Grizzlies Crater Comets Eagle Point Eagles Grants Pass Cavemen North Medford Black Tornado Roseburg Indians South Medford Panthers
6A/5A: Midwestern Hybrid Churchill Lancers North Eugene Highlanders Sheldon Irish South Eugene Axe Springfield Millers Thurston Colts Willamette Wolverines
6A classification 6A-1: Portland Interscholastic League Benson Astros Cleveland Warriors Franklin Lightning Grant Generals Jefferson Democrats Lincoln Cardinals McDaniel Mountain Lions Roosevelt Roughriders Wells Guardians
6A-2: Metro League Beaverton Beavers Jesuit Crusaders (private) Mountainside Mavericks Southridge Skyhawks Sunset Apollos Westview Wildcats
6A-3: Pacific Conference Century Jaguars Forest Grove Vikings Glencoe Crimson Tide McMinnville Grizzlies Newberg Tigers Sherwood Bowmen
6A-4: Mt. Hood Conference Barlow Bruins Central Catholic Rams (private) Clackamas Cavaliers David Douglas Scots Gresham Gophers Nelson Hawks Reynolds Raiders
6A-5: Three Rivers League Lake Oswego Lakers Lakeridge Pacers Oregon City Pioneers St. Mary's Academy Blues (private, girls only) Tigard Tigers Tualatin Timberwolves West Linn Lions
6A-6: Central Valley Conference McKay Scots McNary Celtics North Salem Vikings South Salem Saxons Sprague Olympians West Salem Titans
5A classification 5A-1: East Metro Conference Centennial Eagles Hood River Valley Eagles Milwaukie Mustangs Parkrose Broncos Rex Putnam Kingsmen Sandy Pioneers St. Helens Lions
5A-2: Northwest Oregon Conference Aloha Warriors Canby Cougars Hillsboro Spartans La Salle Falcons (private) Liberty Falcons Wilsonville Wildcats Woodburn Bulldogs
5A-3: Mid-Willamette Conference Corvallis Spartans Crescent Valley Raiders Dallas Dragons Lebanon Warriors Silverton Foxes South Albany Red Hawks West Albany Bulldogs
5A-4: Intermountain Conference Bend Lava Bears Caldera Wolfpack Crook County Cowboys Mountain View Cougars Redmond Panthers Ridgeview Ravens Summit Storm
4A classification 4A-1: Cowapa League Astoria Fishermen Banks Braves Scappoose Indians Seaside Seagulls Tillamook Cheesemakers Valley Catholic Valiants (private)
4A-2: Tri-Valley Conference Estacada Rangers Gladstone Gladiators Madras White Buffaloes Molalla Indians North Marion Huskies The Dalles Riverhawks
4A-3: Oregon West Conference Cascade Cougars Central Panthers Newport Cubs Philomath Warriors Stayton Eagles Taft Tigers
4A-4: Sky-Em League Cottage Grove Lions Elmira Falcons Junction City Tigers Marist Catholic Spartans (private) Marshfield Pirates North Bend Bulldogs South Umpqua Lancers
4A-5: Skyline Conference Cascade Christian Challengers (private) Henley Hornets Hidden Valley Mustangs Klamath Union Pelicans Mazama Vikings North Valley Knights Phoenix Pirates
4A-6: Greater Oregon League Baker Bulldogs La Grande Tigers Ontario Tigers Pendleton Buckaroos
3A classification 3A-1: Coastal Range League Catlin Gabel Eagles (private) Corbett Cardinals Neah-Kah-Nie Pirates Oregon Episcopal Aardvarks (private) Rainier Columbians Warrenton Warriors
3A-2: Lewis & Clark League De La Salle North Catholic Knights (private) Horizon Christian Hawks (private) Portland Adventist Academy Cougars (private) Riverdale Mavericks Westside Christian Eagles (private)
3A-3: PacWest Conference Blanchet Catholic Cavaliers (private) Gervais Cougars Harrisburg Eagles Jefferson Lions Scio Loggers Salem Academy Crusaders (private)
3A-4: West Valley League Amity Warriors Dayton Pirates Santiam Christian Eagles (private) Willamina Bulldogs Yamhill-Carlton Tigers
3A-5: Mountain Valley Conference Creswell Bulldogs La Pine Hawks Pleasant Hill Billies Sisters Outlaws Sweet Home Huskies Trinity Lutheran Saints (private)
3A-6: Far West League Brookings-Harbor Bruins Coquille Red Devils Douglas Trojans Glide Wildcats Illinois Valley Cougars Siuslaw Vikings Sutherlin Bulldogs St. Mary's Crusaders (private)
3A-7: Eastern Oregon League Burns Hilanders McLoughlin Pioneers Nyssa Bulldogs Riverside Pirates Umatilla Vikings Vale Vikings
2A classification 2A-1: Northwest League Clatskanie Tigers Faith Bible Falcons (private) Gaston Greyhounds Knappa Loggers Nestucca Bobcats Vernonia Loggers
2A-2: Metro East Conference Country Christian Cougars (private) Mannahouse Christian Academy Lions (private) North Clackamas Christian Saints (private) Portland Christian Royals (private) Riverside High School (public) Southwest Christian Wildcats (private)
2A-3: Tri-River Conference Colton Vikings Delphian School Dragons (private) Kennedy Trojans Regis Rams (private) Santiam Wolverines Sheridan Spartans St. Paul Buckaroos Western Christian Pioneers (private)
2A-4: Valley Coast Conference Central Linn Cobras Crosshill Christian Eagles (private) East Linn Christian Academy Eagles (private) Lowell Devils Monroe Dragons Oakridge Warriors Toledo Boomers Waldport Irish
2A-5: Wapiti League Cove Leopards Crane Mustangs Elgin Huskies Enterprise Outlaws Harper Hornets Imbler Panthers Union Bobcats
2A-6: Blue Mountain Conference Grant Union Prospectors Heppner Mustangs Irrigon Knights Stanfield Tigers Weston-McEwen Tiger Scots
2A-7: Sunset Conference Bandon Tigers Gold Beach Panthers Myrtle Point Bobcats North Douglas Warriors Oakland Oakers Reedsport Braves
2A-8: East Cascades Conference Bonanza Antlers Culver Bulldogs Lakeview Honkers Lost River Raiders Rogue River Chieftains
1A classification 1A-1: The Valley 10 League Columbia Christian Knights (private) Damascus Christian Eagles (private) Grand View Christian Huskies (private) Life Christian Lions (private) Open Door Christian Huskies (private) Portland Waldorf Wolfpack (private) St. Stephen's Archers (private) Trinity Academy Thunder (private) Tualatin Valley Academy Eagles (private) Valor Christian Knights (private) Paideia Classical Christian School (private)
1A-2: Casco League C. S. Lewis Watchmen (private) Chemawa Braves Falls City Mountaineers Jewell Bluejays Livingstone Lions (private) Oregon School for the Deaf Panthers Perrydale Pirates Veritas Vanguard (private) Willamette Valley Christian Warriors (private)
1A-3: Mountain West League Alsea Wolverines Crow Cougars Eddyville Charter Eagles Eugene Christian Lions (private) Kings Valley Eagles Mapleton Sailors McKenzie Eagles Mohawk Mustangs Northwest Christian Academy Warriors (private) Siletz Valley Warriors Triangle Lake Lakers
1A-4: Skyline League Camas Valley Hornets Days Creek Wolves Elkton Elks Glendale Pirates Milo Adventist Mustangs New Hope Christian Warriors (private) Pacific Pirates Powers Cruisers Riddle Irish Rogue Christian Academy Eagles (private) Umpqua Valley Christian Monarchs (private) Yoncalla Eagles
1A-5: Mountain Valley League Butte Falls Loggers Cascades Academy Steelhead (private) Central Christian Tigers (private) Chiloquin Panthers Crosspoint Christian Warriors (private) Gilchrist Grizzlies Harvest Christian Nighthawks (private) North Lake Cowboys Paisley Broncos Prospect Cougars Rogue Valley Adventist Red Tail Hawks (private)
1A-6: Big Sky League Arlington Honkers Bickleton Pirates Condon Blue Devils Dufur Rangers Glenwood Eagles Horizon Christian Hawks (private) Ione Cardinals Klickitat Vandals Lyle Cougars Mitchell Loggers Sherman Huskies South Wasco County Redsides Spray Eagles Trout Lake Mustangs Wheeler Falcons Wishram Indians
1A-7: Old Oregon League Echo Cougars Griswold Grizzles Joseph Eagles Nixyaawii Golden Eagles Pilot Rock Rockets Pine Eagle Spartans Powder Valley Badgers Wallowa Cougars
1A-8: High Desert League Adrian Antelopes Burnt River Bulls Dayville Tigers Four Rivers Falcons Huntington Locomotives Jordan Valley Mustangs Long Creek Mountaineers Monument Tigers Prairie City Panthers Ukiah Cougars
Former members Hermiston High School - moved to the Washington Interscholastic Activities Association to compete in the Columbia Basin Conference, which consists of schools in Tri-Cities, Washington
Football Classifications The Football AD Hoc Committee Will have there 2026 Released by January 22, 2026,
Schools often compete in different divisions for football; in other sports, conferences are constructed to aim to preserve historic rivalries, regardless of current enrollment. As of the 2022–23 season, OSAA's classifications comprise the following:
6A classification
6A-1: Portland Interscholastic League
Benson Tech Astros Cleveland Warriors Franklin Lightning Grant Generals Jefferson Democrats Lincoln Cardinals McDaniel Mountain Lions Roosevelt Roughriders Wells Guardians
6A-2: Metro League Beaverton Beavers Jesuit Crusaders (private) Mountainside Mavericks Southridge Skyhawks Sunset Apollos Westview Wildcats
6A-3: Pacific Conference Century Jaguars Liberty Falcons McMinnville Grizzlies Newberg Tigers Sherwood Bowmen
6A-4: Mt. Hood Conference Barlow Bruins Central Catholic Rams (private) Clackamas Cavaliers David Douglas Scots Gresham Gophers Nelson Hawks Reynolds Raiders Sandy Pioneers
6A-5: Three Rivers League Lake Oswego Lakers Lakeridge Pacers Oregon City Pioneers Tigard Tigers Tualatin Timberwolves West Linn Lions
6A-6: Central/Southwest Valley Conference Grants Pass Cavemen McNary Celtics North Medford Black Tornado North Salem Vikings Sheldon Irish South Medford Panthers South Salem Saxons Sprague Olympians West Salem Titans
5A classification 5A-SD1: Special District 1 Aloha Warriors Centennial Eagles Forest Grove Vikings (6A) Glencoe Crimson Tide Hillsboro Spartans Hood River Valley Eagles Rex Putnam Kingsmen La Salle Falcons (private)
5A-SD2: Special District 2 Canby Cougars Central Panthers McKay Scots Silverton Foxes Wilsonville Wildcats Woodburn Bulldogs
5A-SD3: Special District 3 Corvallis Spartans Crescent Valley Raiders Dallas Dragons Lebanon Warriors South Albany Red Hawks West Albany Bulldogs
5A-SD4: Special District 4 Churchill Lancers