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C
* indicates a non-preferred term, which includes a link to the preferred term.
- Cagliari
- Cairo
- California
- Cambodia
- Cambridge
- Camden
- Cameroon
- Can Tho
- Canada
- Cape Verde
- Cayman Islands
- Cedar Rapids
- Central African Republic
- Central America
- Central Province
- Central Valley (California)
- Chad
- Champaign-Urbana
- Channel Islands
- Charleston (South Carolina)
- Charleston (West Virginia)
- Charlotte
- Chattanooga
- Chechnia*
- Chechnya
- Chester
- Chicago
- Chicopee
- Chihuahua
- Chile
- China*
- China (Peoples Republic)
- Christmas Island
- Cincinnati
- Ciudad Jauvez
- Clearwater
- Cleveland
- Clifton
- Coast Province
- Cocos (Keeling) Islands
- College Station
- Cologne
- Colombia
- Colonial Heights
- Colorado
- Colorado Springs
- Columbia (Missouri)
- Columbia (South Carolina)
- Columbus (Georgia)
- Columbus (Ohio)
- Comoros
- Concepcion
- Congo*
- Connecticut
- Cook Islands
- Cordoba
- Corpus Christi
- Corsica
- Costa Rica
- Cote d'Ivoire*
- Croatia
- Cuba
- Cyprus
- Czech Republic
- Czechoslovakia