| No. | Name | Type | Language | Counties |
|---|---|---|---|---|
| 1 | Chelsea Rene Coots | Master | English | Marion, Polk, Yamhill |
| 0 | Jacquelyn Kae Cordero | Community | English | Coos, Curry, Jackson, Josephine, Klamath |
| 0 | APRIL K CORIL | Master | English | Clackamas, Marion, Multnomah, Washington |
| 7 | Jennifer Michelle Cork | Master | English | Benton, Clatsop, Columbia, Lincoln, Linn, Marion, Multnomah, Polk, Tillamook, Washington, Yamhill |
| 1 | Estonia Latavia Cornett | Master | English | Clackamas, Multnomah, Washington |
| 0 | Lorena Cortes Gonzalez | Standardized | English, Spanish | Morrow, Umatilla |
| 0 | LINDA MARIE CRAVEN | Master | English | Clackamas, Lincoln, Marion, Polk, Yamhill |
| 0 | DAWN CRAWFORD | Master | English | All |
| 0 | Janis Irene Crawford | Specialty Master | English | All |
| 0 | RUTH CRAWMER | Community | English | Crook, Deschutes |
| 0 | CHELSEA RUTHERFORD CREST | Master | English | Multnomah |
| 1 | Samantha Croney | Master | English | Crook, Deschutes, Jefferson |
| 10 | SARAH ANN CROZIER | Master | English, Spanish | All |
| 0 | Palmira Cruz-Rodriguez | Master | Spanish | Multnomah |
| 19 | Danielle Marie Cunningham | Master | English | Benton, Clackamas, Coos, Deschutes, Douglas, Klamath, Lane, Lincoln, Linn, Marion, Multnomah, Polk |
| 12 | ALEXANDRA CURTIS | Master | English | All |
| 0 | LISA ANN CUSICK-CORDIE | Community | English | Hood River, Wasco |
| 0 | GAYLE DENISE CYNAR | Master | English | All |
| 1 | LAURA ANNE CZARNIECKI | Master | English | Clackamas, Multnomah |
| 8 | Catie McCullar Dalton | Community | English | Benton, Clatsop, Lincoln, Linn, Tillamook |