| WASHINGTON COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 14, 2016 | Active |
| WASCO COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 14, 2016 | Active |
| UMATILLA COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 24, 2016 | Active |
| TILLAMOOK COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 14, 2016 | Active |
| POLK COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 14, 2016 | Active |
| MULTNOMAH COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 14, 2016 | Active |
| LINN COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |
| LINCOLN COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |
| LANE COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |
| KLAMATH COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |
| JACKSON COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |
| CURRY COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 28, 2016 | Active |
| COOS COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |
| COLUMBIA COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |
| CLATSOP COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |
| CLACKAMAS COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |
| CENTRAL OREGON MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |
| CENTRAL GORGE COUNTY MASTER GARDENERS ASSOCIATIONHood River, OR · Active | Hood River, OR | Other | Sep 17, 2016 | Active |
| BENTON COUNTY MASTER GARDENERS ASSOCIATIONCorvallis, OR · Active | Corvallis, OR | Other | Sep 17, 2016 | Active |