Africa

Caracas [US Embassy] Venezuela

Cargados Carajos Shoals Mauritius

Caroline Islands Micronesia, Federated States of;
Pacific Islands, Trust Territory
of the

Caribbean Sea Atlantic Ocean

Carpentaria, Gulf of Pacific Ocean

Casablanca [US Consulate General] Morocco

Castries Saint Lucia

Cato Island Australia

Cayenne French Guiana

Cebu [US Consulate General] Philippines

Celebes Indonesia

Celebes Sea Pacific Ocean

Celtic Sea Atlantic Ocean

Central African Empire Central African Republic

Ceuta Spain

Ceylon Sri Lanka

Chafarinas, Islas Spain

Chagos Archipelago (Oil Islands) British Indian Ocean Territory

Channel Islands Guernsey; Jersey

Charlotte Amalie Virgin Islands

Chatham Islands New Zealand

Cheju-do Korea, South

Cheju Strait Pacific Ocean

Chengdu [US Consulate General] China

Chesterfield Islands New Caledonia
(Iles Chesterfield)

Chiang Mai [US Consulate General] Thailand

Chihli, Gulf of (see Bo Hai) Pacific Ocean

China, People's Republic of China

China, Republic of Taiwan

Chisinau [US Embassy] Moldova

Choiseul Solomon Islands

Christmas Island [Indian Ocean] Australia

Christmas Island [Pacific Ocean] Kiribati
(Kiritimati)

Chukchi Sea Arctic Ocean

Ciskei South Africa

Ciudad Juarez [US Consulate General] Mexico

Coco, Isla del Costa Rica

Cocos Islands Cocos (Keeling) Islands

Colombo [US Embassy] Sri Lanka

Colon, Archipielago de Ecuador
(Galapagos Islands)

Commander Islands Russia
(Komandorskiye Ostrova)

Conakry [US Embassy] Guinea

Congo (Brazzaville)