| Chailley (89770) | - | - |
| Chambeugle (89120) | - | - |
| Chamoux (89660) | - | - |
| Champcevrais (89220) | - | - |
| Champignelles (89350) | - | - |
| Champigny (89370) | - | - |
| Champlay (89300) | - | - |
| Champlost (89210) | - | - |
| Champs Sur Yonne (89290) | - | - |
| Champvallon (89710) | - | - |
| Chamvres (89300) | - | - |
| Charbuy (89113) | - | - |
| Charbuy (89880) | - | - |
| Charentenay (89580) | - | - |
| Charentenay (89129) | - | - |
| Charmoy (89400) | - | - |
| Charny (89120) | - | - |
| Chassignelles (89160) | - | - |
| Chassy (89110) | - | - |
| Chastellux Sur Cure (89630) | - | - |
| Chastenay (89560) | - | - |
| Chatel Censoir (89660) | - | - |
| Chatel Gerard (89310) | - | - |
| Chaumont (89370) | - | - |
| Chaumot (89500) | - | - |
| Chemilly Sur Serein (89800) | - | - |
| Chemilly Sur Yonne (89250) | - | - |
| Chene Arnoult (89120) | - | - |
| Cheney (89700) | - | - |
| Cheny (89400) | - | - |
| Cheroy (89690) | - | - |
| Cheu (89600) | - | - |
| Chevannes (89240) | - | - |
| Chevillon (89120) | - | - |
| Chichee (89800) | - | - |
| Chichery (89400) | - | - |
| Chigy (89190) | - | - |
| Chitry (89530) | - | - |
| Cisery (89420) | - | - |
| Civry Sur Serein (89440) | - | - |
| Collan (89700) | - | - |
| Collemiers (89100) | - | - |
| Commissey (89430) | - | - |
| Compigny (89140) | - | - |
| Cornant (89500) | - | - |
| Coulangeron (89580) | - | - |
| Coulanges La Vineuse (89580) | - | - |
| Coulanges Sur Yonne (89480) | - | - |
| Coulours (89320) | - | - |
| Courceaux (89260) | - | - |
| Courgenay (89190) | - | - |
| Courgis (89800) | - | - |
| Courlon Sur Yonne (89140) | - | - |
| Courlon Sur Yonne (89670) | - | - |
| Courson Les Carrieres (89560) | - | - |
| Courtoin (89150) | - | - |
| Courtois Sur Yonne (89100) | - | - |
| Coutarnoux (89440) | - | - |
| Crain (89480) | - | - |
| Cravant (89460) | - | - |
| Cruzy Le Chatel (89740) | - | - |
| Cry (89390) | - | - |
| Cudot (89116) | - | - |
| Cudot (89136) | - | - |
| Cussy Les Forges (89420) | - | - |
| Cusy (89160) | - | - |
| Cuy (89140) | - | - |
| Dannemoine (89700) | - | - |
| Dicy (89120) | - | - |
| Diges (89240) | - | - |
| Dilo (89320) | - | - |
| Dissangis (89440) | - | - |
| Dixmont (89500) | - | - |
| Dollot (89150) | - | - |
| Domats (89150) | - | - |
| Domecy Sur Cure (89450) | - | - |
| Domecy Sur Cure (89920) | - | - |
| Domecy Sur Le Vault (89200) | - | - |
| Dracy (89130) | - | - |
| Druyes Les Belles Fontain (89560) | - | - |
| Dye (89360) | - | - |
| Egleny (89240) | - | - |
| Egriselles Le Bocage (89500) | - | - |
| Egriselles Le Bocage (89810) | - | - |
| Epineau Les Voves (89400) | - | - |
| Epineuil (89700) | - | - |
| Escamps (89240) | - | - |
| Escolives Ste Camille (89290) | - | - |
| Esnon (89210) | - | - |
| Essert (89270) | - | - |
| Etais La Sauvin (89480) | - | - |
| Etais La Sauvin (89840) | - | - |
| Etaule (89200) | - | - |
| Etigny (89510) | - | - |
| Etivey (89310) | - | - |
| Evry (89140) | - | - |
| Festigny (89480) | - | - |
| Flacy (89190) | - | - |
| Fleurigny (89260) | - | - |
| Fleury La Vallee (89113) | - | - |