China
total: 9,596,961 sq km
land: 9,569,901 sq km
water: 27,060 sq km

Christmas Island
total: 135 sq km
land: 135 sq km
water: 0 sq km

Clipperton Island
total: 6 sq km
land: 6 sq km
water: 0 sq km

Cocos (Keeling) Islands
total: 14 sq km
land: 14 sq km
water: 0 sq km
note: includes the two main islands of West Island and Home Island

Colombia
total: 1,138,914 sq km
land: 1,109,104 sq km
water: 100,210 sq km
note: includes Isla de Malpelo, Roncador Cay, and Serrana Bank

Comoros
total: 2,235 sq km
land: 2,235 sq km
water: 0 sq km

Congo, Democratic Republic of the
total: 2,344,858 sq km
land: 2,267,048 sq km
water: 77,810 sq km

Congo, Republic of the
total: 342,000 sq km
land: 341,500 sq km
water: 500 sq km

Cook Islands
total: 236 sq km
land: 236 sq km
water: 0 sq km

Coral Sea Islands total: less than 3 sq km land: less than 3 sq km water: 0 sq km note: includes numerous small islands and reefs scattered over a sea area of about 780,000 sq km with the Willis Islets the most important