Washington
Îles commençant par c
États-Unis
- Cactus Island
- Cactus Islands
- Cakesosta
- Camano Island
- Canada Island
- Canoe
- Canoe Island
- Carroll Island
- Cascades Island
- Casey Island
- Castle Island
- Cat Island
- Caterpillar Island
- Cayou Island
- Cemetery Island
- Center Island
- Cha-Choo-Sen
- Charles Island
- Chuckanut Island
- Clark Island
- Cliff Island
- Clover Island
- Cluster Islands
- Coffee Pot Island
- Colville Island
- Cone Islands
- Cooks Island
- Cooks Island (historical)
- Coon Island
- Cooper Island
- Cors Island
- Cottonwood Island
- Cougar Island
- Coyote Islands (historical)
- Crab Island
- Craft Island
- Craven Penninsula (historical)
- Crescent Island
- Crest Island
- Cutts Island
- Cypress Island