| 2024 | Miss Maleah | Mrs. Barkley | Mr. Nielsen | Leaders Assemble! | Positively Marvelous Penguins | Penguins | Salem - Macleay Conference Ctr |
| 2023 | Miss Cady | Mrs. Nailon | Mr. Mobly | Together We Will Enrich the Enchantment of Rainbow | Beautifully Bedazzled Bunnies | Bunny | Salem - Macleay Conference Ctr |
| 2022 | Miss Jesseca | Mrs. Fuller Smith | Mr. Bebee | Welcome to the Jungle | Happily Heroic Hippos | Hippo | Cottage Grove |
| 2021 | Miss Becca | Mrs. Thompson | Mr. Rees | Rise Up! Encore | Rockin' Rollin' Record Breakers | Hedgehog | Wilsonville/Eugene |
| 2020 | Miss Becca | Mrs. Thompson | Mr. Rees | Rise Up! | Hoopin' Hollerin' Hedgehogs | Hedgehog | Pendleton Convention Ctr |
| 2019 | Miss Katie | Mrs. Hogueisson | Mr. Allphin | Adventure Awaits! | Miracle-Making Meerkats | Meerkat | Pendleton Convention Ctr |
| 2018 | Miss Allyssa | Mrs. Mobley | Mr.Hardin | Pushing the Limits | Dramatically Dazzling Daisies | Fox | Pendleton Convention Ctr |
| 2017 | Miss Grace | Mrs. Rhoads | Mr. Thompson | A Steampunk Odyssey | Steampowered Sassy Lassies | Grey Wolf | Pendleton Convention Ctr |
| 2016 | Miss Morgan | Mrs. Malmquist | Mr.Woolcock | Jurassic Journey | Prehistoric Traveling Triceratops | Triceratop | Pendleton Convention Ctr |
| 2015 | Miss Morgan | Mrs. Wheelbarger | Mr. Holm | Once Upon a Time | Spectacular Storytellers | Owl | Pendleton Convention Ctr |
| 2014 | Miss Suzie | Mrs. Lovelin | Mr. Martinez | The Carousel of Life | Supercalifragilisticexpiali-Grandies | Giraffe | Pendleton Convention Ctr |
| 2013 | Miss Emma | Mrs. Rees | Mr. Malmquist | Buck the Ordinary | Boot-Scootin' Beauties | Hereford Cattle | Pendleton Convention Ctr |
| 2012 | Miss Malika | Mrs. Metz | Mr. Scott | Keep Sunshine in Your Heart | Soaring Sunflowers | Dolphin | Pendleton Convention Ctr |
| 2011 | Miss Alena | Mrs. Alf | Mr. Mollenhour | Make a Difference | Dyno-mite Daisies | Turtle | Pendleton Convention Ctr |
| 2010 | Miss Taylor | Mrs. Hayward | Mr. Lovelin | A Look Through Time | Timecatchers | Teddy Bear | Pendleton Convention Ctr |
| 2009 | Miss Cassie | Mrs. Coddington | Mr. White | Let the Rhythms of the Land Guide Our Adventures Through Africa | Rhythmic Rainforest Rafikis | Koala | Pendleton Convention Ctr |
| 2008 | Miss Kaleigh | Mrs. Donnelly | Mr. Dart | Secrets of the Mystical Pond | Mystical Maidens | Dragon | Pendleton Convention Ctr |
| 2007 | Miss Elizabeth | Mrs. Swan | Mr. Metz | Discover the Treasures of the World Through Rainbow | Magnificent Maties | Seahorse | Pendleton Convention Ctr |
| 2006 | Miss Megan | Mrs. Hedges | Mr. Bednarz | The Fabulous Fifties | Pink Ladies | Hound Dog | Pendleton Convention Ctr |
| 2005 | Miss Caitlin | Mrs. Loennig | Mr. Smith | Oriental Adventure! | Peekaboo Pandas | Giant Panda | Pendleton Convention Ctr |
| 2004 | Miss Erin | Mrs. Daniels | Mr. Wilson | Rainbow Polar Express | Sensational Snow Angels | Polar Bear | Pendleton Convention Ctr |
| 2003 | Miss Jessie | Mrs. Nielsen | Mr. Noah | A Year in Paris | Enthusiastically Eccentric Elephants | Elephant | Albany - LBCC - Takena Theater |
| 2002 | Miss Melissa | Mrs. Boswell | Mr. Felder | Escape to Paradise | Perfectly Proud Parrots | Parrot | Albany - LBCC - Takena Theater |
| 2001 | Miss Tori | Mrs. Johnson | Mr. Burlington | 75 Years of Memories | Shimmering Stars | Bunny | Corvallis - OSU - LaSells Stewart Ctr |
| 2000 | Miss Amber | Mrs. Felder | Mr. Milligan | The Oregon Trail | Bee Keepers | Beaver | Corvallis - OSU - LaSells Stewart Ctr |
| 1999 | Miss Sommer | Mrs. Smith | Mr. Daniels | Rainbow's Secret Garden | Wild Flowers | Deer | Corvallis - OSU - LaSells Stewart Ctr |
| 1998 | Miss Melissa | Mrs. Burlington | Mr. Cochran | Rainbow's Enchanted Kingdom | Royal Crusaders | Frog | Corvallis - OSU - LaSells Stewart Ctr |
| 1997 | Miss Leslie | Mrs. Noah | Mr. Moore | Rainbow Sea of Treasures | Treasure Seekers | Orca | Corvallis - OSU - LaSells Stewart Ctr |
| 1996 | Miss Michele | Mrs. Hardin | Mr. Schultz | World of Dreams | Daydream Believers | Teddy Bear | Corvallis - OSU - LaSells Stewart Ctr |
| 1995 | Miss Michelle | Mrs. Jackson | Mr. Baldwin | Follow the Yellow Brick Road | Elegant Emeralds | Toto | Corvallis - OSU - LaSells Stewart Ctr |
| 1994 | Miss Amy | Mrs. Marshall | Mr. Caress | Bless the Beasts and the Children | Dandy Lions | Lion | Corvallis - OSU - LaSells Stewart Ctr |
| 1993 | Miss Kaylene | Mrs. Beck | Mr. Martin | Rainbow in the Country | | Cow | Corvallis - OSU - LaSells Stewart Ctr |
| 1992 | Miss Teresa | Mrs. McAdams | Mr. Crawford | Unity Through Rainbow | Shining China Dolls | Giant Panda | Corvallis - OSU - LaSells Stewart Ctr |
| 1991 | Miss Suzy | Mrs. Taylor | Mr. Havery | Crossroads of Caravans | Desert Jewels | Camel | Corvallis - OSU - LaSells Stewart Ctr |
| 1990 | Miss Cheryl | Mrs. Anderson | Mr. Svensen | A Touch of Class | Tropical Islanders | Penguin | Corvallis - OSU - LaSells Stewart Ctr |
| 1989 | Miss Kim | Mrs. Hughes | Mr. Johnson | Dancing to Dreamland | Music Box Dancers | Ballerina | Corvallis - OSU - LaSells Stewart Ctr |
| 1988 | Miss Karen | Mrs. Frack | Mr. Inman | Faith Will Lead Us On | Elegant Ice Maidens | Swan | Corvallis - OSU - LaSells Stewart Ctr |
| 1987 | Miss Lorena | Mrs. Williams | Mr. Means | A Dream Come True | Delightful Dreamers | Kangaroo | Corvallis - OSU - LaSells Stewart Ctr |
| 1986 | Miss Linda | Mrs. Beam | Mr. Rhodes | Walk On Unafraid | Royal Duchesses | Dragon | Corvallis - OSU - LaSells Stewart Ctr |
| 1985 | Miss Christi | Mrs. Groulx | Mr. Moore | Believe in Miracles | Starlets | Angel | Corvallis - OSU - LaSells Stewart Ctr |
| 1984 | Miss Lara | Mrs. Daggett | Mr. Young | Let it Come From Your Heart | The Heart Lights | Parrot | Corvallis - OSU - LaSells Stewart Ctr |
| 1983 | Miss Shellea | Mrs. Powell | Mr. Nacheff | Forever the Rainbow | Classical Clowns | Clown | Corvallis - OSU - Gill Coliseum |
| 1982 | Miss LuAnn | Mrs. Griffith | Mr. Haffenden | The Love of Friendship | Mystical Maidens | Unicorn | Corvallis - OSU - Gill Coliseum |
| 1981 | Miss Ruth | Mrs. Ross | Mr. Chetwood | The Faith of a Child | Paddington's Pals | Paddington Bear | Corvallis - OSU - Gill Coliseum |
| 1980 | Miss Kimberly | Mrs. Bresler | Mr. Kern | Look to the Rainbow with Renewed Faith | | Dove | Corvallis - OSU - Gill Coliseum |
| 1979 | Miss Patricia | Mrs. Bishop | Mr. Jones | Freedom of Life | | Lion & Lamb | Corvallis - OSU - Gill Coliseum |
| 1978 | Miss Erin | Mrs. Larkins | Mrs. Goodrich | Sea of Hope | | Seagull | Corvallis - OSU - Gill Coliseum |
| 1977 | Miss Candi Sue | Mrs.Young | Mr. Hoard | You'll Never Walk Alone | | Seal | Corvallis - OSU - Gill Coliseum |
| 1976 | Miss Suzanne | Mrs. Mudrick | Mr. Klein | Rainbow's Golden Past Will Light America's Future | | | Corvallis - OSU - Gill Coliseum |
| 1975 | Miss Christy Lee | Mrs. Williams | Mr. Ferguson | Love Is the Key | | Raggedy Ann | Corvallis - OSU - Gill Coliseum |
| 1974 | Miss Melody | Mrs. Ballard | Mr. Ferguson | Happiness Is Harmony Within Rainbow Service | | | Corvallis - OSU - Gill Coliseum |
| 1973 | Miss Gail | Mrs. Mattson | Mr. Nickelson | I'll Catch the Sun | | | Corvallis - OSU - Gill Coliseum |
| 1972 | Miss Sue | | | Rainbow: A Garden of Friendship | | | Corvallis - OSU - Gill Coliseum |
| 1971 | Miss Debbie | | | Rainbow of Happiness | | | Corvallis - OSU - Gill Coliseum |
| 1970 | Miss Kathy | | | Walk with Hope in Your Heart | | | Corvallis - OSU - Gill Coliseum |
| 1969 | Miss Wendy | | | Rainbow: The Key to My Dreams | | | Corvallis - OSU - Gill Coliseum |
| 1968 | Miss Allison | | | The Four Seasons of Rainbow | | | Corvallis - OSU - Gill Coliseum |
| 1967 | Miss Donna | | | Love, the Heart of Rainbow | | | Corvallis - OSU - Gill Coliseum |
| 1966 | Miss Christie | | | Christie's Crown of Jewels | | | Corvallis - OSU - Gill Coliseum |
| 1965 | Miss Jane | | | Let There Be Peace on Earth | | | Corvallis - OSU - Gill Coliseum |
| 1964 | Miss Sandra | | | Sandy's Garden of Friendship | | | Corvallis - OSU - Gill Coliseum |
| 1963 | Miss Alice | | | Alice's Wonderland | | | Corvallis - OSU - Gill Coliseum |
| 1962 | Miss Donna | | | Love - The Tie That Binds | | | Salem |
| 1961 | Miss Joan | | | I Set My Bow in the Clouds | | | Klamath Falls |
| 1960 | Miss Christine | | | Faith Will Lead You On | | | Hillsboro |
| 1959 | Miss Carolyn | | | | | | La Grande |
| 1958 | Miss Carol | | | | | | Albany |
| 1957 | Miss Mary | | | | | | The Dalles |
| 1956 | Miss Lucille | | | | | | Astoria |
| 1955 | Miss Kay | | | Heaven on Earth | | | McMinnville |
| 1954 | Miss Mildred | | | | | | Baker |
| 1953 | Miss Sally | | | The Light of Faith | | | Tillamook |
| 1952 | Miss Doris | | | | | | Lebanon |
| 1951 | Miss Rae | | | | | | Seaside |
| 1950 | Miss Hazel | | | | | | Corvallis |
| 1949 | Miss Vivian | | | | | | St Helens |
| 1948 | Miss Joyce | | | | | | John Day |
| 1947 | Miss Joan | | | | | | Eugene |
| 1946 | Miss Barbara | | | | | | Portland |
| 1945 | Miss Marjorie | | | | | | Albany |
| 1944 | Miss Nancy | | | | | | Cottage Grove |
| 1943 | Miss Civilla | | | | | | Salem |
| 1942 | Miss Mary | | | | | | Hillsboro |
| 1941 | Miss Marian | | | | | | Corvallis |
| 1940 | Miss Betty | | | | | | Salem |
| 1939 | Miss Dorothy | | | Blue Hawaii | | | Eugene |
| 1938 | Miss Dorothy | | | | | | McMinnville |
| 1937 | Miss Ruby | | | | | | The Dalles |
| 1936 | Miss Mary Louise | | | | | | Baker |
| 1935 | Miss Jessie | | | | | | Tillamook |
| 1934 | Miss Madelle | | | | | | Albany |
| 1933 | Miss Eleanor | | | | | | Portland |
| 1932 | Miss Virginia | | | | | | Salem |
| 1931 | Miss Maxine | | | | | | La Grande |
| 1930 | Miss Shirley | | | | | | Eugene |
| 1929 | Miss Anne | | | | | | Corvallis |
| 1928 | Miss Marguerite | | | | | | Salem |
| 1927 | Miss Elizabeth | | | | | | Portland |
