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- Caesar Rodney Institute
- Capital of the State of Delaware
- Capitol of the State of Delaware
- commons:Category:Delaware State Capitol
- Casinos in Delaware
- Census statistical areas of Delaware
- Cities in Delaware
- commons:Category:Cities in Delaware
- Delaware Wing Civil Air Patrol
- Climate of Delaware
- Colony of Delaware – see Lower Counties on the Delaware River
- Colony of New-York, (1664–1673), (1674–1681)-1688, and 1689–1776
- Colony of Pennsylvania, 1681–1776
- Colleges and universities in Delaware
- commons:Category:Universities and colleges in Delaware
- Committee of 100 (Delaware)
- Communications in Delaware
- commons:Category:Communications in Delaware
- Companies in Delaware
- Category:Companies based in Delaware
- Congressional districts of Delaware
- Corporations incorporated in Delaware
- Constitution of the State of Delaware
- Counties of the State of Delaware
- commons:Category:Counties in Delaware
- New Castle County, Delaware
- Kent County, Delaware
- Sussex County, Delaware
- commons:Category:Counties in Delaware
- Culture of Delaware
- commons:Category:Delaware culture
Read more about this topic: Index Of Delaware-related Articles