Clipperton Island
lowest point: Pacific Ocean 0 m
highest point: Rocher Clipperton 29 m

Cocos (Keeling) Islands
lowest point: Indian Ocean 0 m
highest point: unnamed location 5 m

Colombia
lowest point: Pacific Ocean 0 m
highest point: Pico Cristobal Colon 5,775 m
note: nearby Pico Simon Bolivar also has the same elevation

Comoros
lowest point: Indian Ocean 0 m
highest point: Le Kartala 2,360 m

Congo, Democratic Republic of the lowest point: Atlantic Ocean 0 m highest point: Pic Marguerite on Mont Ngaliema (Mount Stanley) 5,110 m

Congo, Republic of the
lowest point: Atlantic Ocean 0 m
highest point: Mount Berongou 903 m

Cook Islands
lowest point: Pacific Ocean 0 m
highest point: Te Manga 652 m

Coral Sea Islands
lowest point: Pacific Ocean 0 m
highest point: unnamed location on Cato Island 6 m

Costa Rica
lowest point: Pacific Ocean 0 m
highest point: Cerro Chirripo 3,810 m

Cote d'Ivoire
lowest point: Gulf of Guinea 0 m
highest point: Mont Nimba 1,752 m