Christmas Island
English (official), Chinese, Malay

Cocos (Keeling) Islands
Malay (Cocos dialect), English

Colombia
Spanish

Comoros
Arabic (official), French (official), Shikomoro (a blend of
Swahili and Arabic)

Congo, Democratic Republic of the
French (official), Lingala (a
lingua franca trade language), Kingwana (a dialect of Kiswahili or
Swahili), Kikongo, Tshiluba

Congo, Republic of the
French (official), Lingala and Monokutuba
(lingua franca trade languages), many local languages and dialects
(of which Kikongo is the most widespread)

Cook Islands
English (official), Maori

Costa Rica
Spanish (official), English

Cote d'Ivoire
French (official), 60 native dialects with Dioula the
most widely spoken

Croatia
Croatian 96.1%, Serbian 1%, other and undesignated 2.9%
(including Italian, Hungarian, Czech, Slovak, and German) (2001
census)