China
slightly smaller than the US

Christmas Island
about three-quarters the size of Washington, DC

Clipperton Island
about 12 times the size of The Mall in Washington,
DC

Cocos (Keeling) Islands
about 24 times the size of The Mall in
Washington, DC

Colombia
slightly less than twice the size of Texas

Comoros
slightly more than 12 times the size of Washington, DC

Congo, Democratic Republic of the slightly less than one-fourth the size of the US

Congo, Republic of the
slightly smaller than Montana

Cook Islands
1.3 times the size of Washington, DC

Coral Sea Islands
NA