| Buellas (01310) | - | - |
| Camp De La Valbonne (01360) | - | - |
| Ceignes (01430) | - | - |
| Cerdon (01450) | - | - |
| Cern Cedex (01631) | - | - |
| Cern Cedex (01632) | - | - |
| Cern Cedex (01633) | - | - |
| Cern Cedex (01634) | - | - |
| Cern Cedex (01635) | - | - |
| Cern Cedex (01636) | - | - |
| Cern Cedex (01637) | - | - |
| Cern Cedex (01638) | - | - |
| Cern Cedex (01639) | - | - |
| Cern Site De Prevessin (01630) | - | - |
| Certines (01240) | - | - |
| Cesseins (01090) | - | - |
| Cessy (01170) | - | - |
| Ceyzeriat (01250) | - | - |
| Ceyzerieu (01350) | - | - |
| Chalamont (01320) | - | - |
| Chaleins (01480) | - | - |
| Chaley (01230) | - | - |
| Challes (01450) | - | - |
| Challex (01630) | - | - |
| Champagne En Valromey (01260) | - | - |
| Champdor (01930) | - | - |
| Champdor (01110) | - | - |
| Champfromier (01410) | - | - |
| Chanay (01420) | - | - |
| Chancia (01590) | - | - |
| Chaneins (01990) | - | - |
| Chanes (01120) | - | - |
| Chanoz Chatenay (01400) | - | - |
| Charancin (01260) | - | - |
| Charix (01130) | - | - |
| Charnoz Sur Ain (01800) | - | - |
| Chateau Gaillard (01500) | - | - |
| Chatenay (01320) | - | - |
| Chatillon En Michaille (01200) | - | - |
| Chatillon La Palud (01320) | - | - |
| Chatillon Sur Chalaronne (01400) | - | - |
| Chavannes Sur Reyssouze (01190) | - | - |
| Chavannes Sur Suran (01250) | - | - |
| Chaveyriat (01660) | - | - |
| Chavornay (01510) | - | - |
| Chazey Bons (01300) | - | - |
| Chazey Sur Ain (01150) | - | - |
| Cheignieu La Balme (01510) | - | - |
| Chevillard (01430) | - | - |
| Chevroux (01190) | - | - |
| Chevry (01170) | - | - |
| Chezery Forens (01410) | - | - |
| Chezery Forens (01200) | - | - |
| Civrieux (01390) | - | - |
| Cize (01250) | - | - |
| Cleyzieu (01230) | - | - |
| Coligny (01270) | - | - |
| Collonges (01550) | - | - |
| Colomieu (01300) | - | - |
| Conand (01230) | - | - |
| Condamine (01430) | - | - |
| Condeissiat (01400) | - | - |
| Confort (01200) | - | - |
| Confrancon (01310) | - | - |
| Contrevoz (01300) | - | - |
| Conzieu (01300) | - | - |
| Corbonod (01420) | - | - |
| Corcelles (01110) | - | - |
| Cordieux (01120) | - | - |
| Corgenon (01310) | - | - |
| Corlier (01110) | - | - |
| Cormaranche En Bugey (01110) | - | - |
| Cormoranche Sur Saone (01290) | - | - |
| Cormoz (01560) | - | - |
| Corveissiat (01250) | - | - |
| Courmangoux (01370) | - | - |
| Courtes (01560) | - | - |
| Crans (01320) | - | - |
| Cras Sur Reyssouze (01340) | - | - |
| Craz En Michaille (01200) | - | - |
| Cressin Rochefort (01350) | - | - |
| Crottet (01620) | - | - |
| Crozet (01170) | - | - |
| Cruzilles Les Mepillat (01290) | - | - |
| Cuisiat (01370) | - | - |
| Culoz (01350) | - | - |
| Curciat Dongalon (01560) | - | - |
| Curtafond (01310) | - | - |
| Cuzieu (01300) | - | - |
| Dagneux (01120) | - | - |
| Divonne Les Bains (01220) | - | - |
| Dommartin (01380) | - | - |
| Dompierre Sur Chalaronne (01400) | - | - |
| Dompierre Sur Veyle (01240) | - | - |
| Domsure (01270) | - | - |
| Dortan (01590) | - | - |
| Douvres (01500) | - | - |
| Drom (01250) | - | - |
| Druillat (01160) | - | - |
| Echallon (01130) | - | - |