| Postal Code | Place Name | Region | Department | Arrondissement | Canton |
|---|---|---|---|---|---|
| 01000 | Bourg-en-Bresse | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Bourg-en-Bresse |
| 01090 | Montmerle-sur-Saône | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Châtillon-sur-Chalaronne |
| 01100 | Oyonnax | Auvergne-Rhône-Alpes | Ain | Nantua | Oyonnax |
| 01110 | Hauteville-Lompnes | Auvergne-Rhône-Alpes | Ain | Belley | Hauteville-Lompnes |
| 01120 | La Boisse | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Meximieux |
| 01130 | Nantua | Auvergne-Rhône-Alpes | Ain | Nantua | Bellegarde-sur-Valserine |
| 01140 | Saint-Didier-sur-Chalaronne | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Châtillon-sur-Chalaronne |
| 01150 | Lagnieu | Auvergne-Rhône-Alpes | Ain | Belley | Lagnieu |
| 01160 | Pont-d'Ain | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Ceyzériat |
| 01190 | Pont-de-Vaux | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Replonges |
| 01200 | Bellegarde-sur-Valserine | Auvergne-Rhône-Alpes | Ain | Nantua | Bellegarde-sur-Valserine |
| 01210 | Ferney-Voltaire | Auvergne-Rhône-Alpes | Ain | Gex | Saint-Genis-Pouilly |
| 01220 | Divonne-les-Bains | Auvergne-Rhône-Alpes | Ain | Gex | Gex |
| 01230 | Saint-Rambert-en-Bugey | Auvergne-Rhône-Alpes | Ain | Belley | Ambérieu-en-Bugey |
| 01240 | Certines | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Ceyzériat |
| 01250 | Ceyzériat | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Saint-Étienne-du-Bois |
| 01260 | Champagne-en-Valromey | Auvergne-Rhône-Alpes | Ain | Belley | Hauteville-Lompnes |
| 01270 | Coligny | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Saint-Étienne-du-Bois |
| 01290 | Grièges | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Vonnas |
| 01300 | Belley | Auvergne-Rhône-Alpes | Ain | Belley | Belley |
| 01310 | Polliat | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Attignat |
| 01320 | Châtillon-la-Palud | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Ceyzériat |
| 01330 | Villars-les-Dombes | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Villars-les-Dombes |
| 01340 | Attignat | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Attignat |
| 01350 | Culoz | Auvergne-Rhône-Alpes | Ain | Belley | Hauteville-Lompnes |
| 01360 | Balan | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Meximieux |
| 01370 | Saint-Étienne-du-Bois | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Saint-Étienne-du-Bois |
| 01390 | Saint-André-de-Corcy | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Villars-les-Dombes |
| 01400 | Châtillon-sur-Chalaronne | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Châtillon-sur-Chalaronne |
| 01410 | Champfromier | Auvergne-Rhône-Alpes | Ain | Gex | Thoiry |
| 01420 | Corbonod | Auvergne-Rhône-Alpes | Ain | Belley | Hauteville-Lompnes |
| 01430 | Saint-Martin-du-Frêne | Auvergne-Rhône-Alpes | Ain | Nantua | Hauteville-Lompnes |
| 01440 | Viriat | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Bourg-en-Bresse-1 |
| 01450 | Poncin | Auvergne-Rhône-Alpes | Ain | Nantua | Pont-d'Ain |
| 01460 | Montréal-la-Cluse | Auvergne-Rhône-Alpes | Ain | Nantua | Nantua |
| 01470 | Serrières-de-Briord | Auvergne-Rhône-Alpes | Ain | Belley | Lagnieu |
| 01500 | Ambérieu-en-Bugey | Auvergne-Rhône-Alpes | Ain | Belley | Ambérieu-en-Bugey |
| 01510 | Artemare | Auvergne-Rhône-Alpes | Ain | Belley | Belley |
| 01540 | Vonnas | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Vonnas |
| 01550 | Pougny | Auvergne-Rhône-Alpes | Ain | Gex | Thoiry |
| 01560 | Saint-Trivier-de-Courtes | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Replonges |
| 01570 | Feillens | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Replonges |
| 01580 | Izernore | Auvergne-Rhône-Alpes | Ain | Nantua | Pont-d'Ain |
| 01590 | Dortan | Auvergne-Rhône-Alpes | Ain | Nantua | Pont-d'Ain |
| 01600 | Reyrieux | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Trévoux |
| 01640 | Saint-Jean-le-Vieux | Auvergne-Rhône-Alpes | Ain | Nantua | Pont-d'Ain |
| 01660 | Mézériat | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Attignat |
| 01680 | Lhuis | Auvergne-Rhône-Alpes | Ain | Belley | Lagnieu |
| 01700 | Miribel | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Miribel |
| 01710 | Thoiry | Auvergne-Rhône-Alpes | Ain | Gex | Thoiry |
| 01750 | Replonges | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Replonges |
| 01800 | Meximieux | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Meximieux |
| 01851 | Marboz | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Saint-Étienne-du-Bois |
| 01960 | Péronnas | Auvergne-Rhône-Alpes | Ain | Bourg-en-Bresse | Ceyzériat |