Postcode areas 01XXX
- Postcode area 01000 Bourg-en-Bresse
- Postcode area 01090 Montmerle-sur-Saône
- Postcode area 01100 Oyonnax
- Postcode area 01110 Hauteville-Lompnes
- Postcode area 01120 Montluel
- Postcode area 01130 Nantua
- Postcode area 01140 Thoissey
- Postcode area 01150 Lagnieu
- Postcode area 01160 Pont-d'Ain
- Postcode area 01170 Gex
- Postcode area 01190 Pont-de-Vaux
- Postcode area 01200 Bellegarde-sur-Valserine
- Postcode area 01210 Ferney-Voltaire
- Postcode area 01220 Divonne-les-Bains
- Postcode area 01230 Saint-Rambert-en-Bugey
- Postcode area 01240 Saint-Paul-de-Varax
- Postcode area 01250 Ceyzériat
- Postcode area 01260 Champagne-en-Valromey
- Postcode area 01270 Coligny
- Postcode area 01280 Prévessin-Moëns
- Postcode area 01290 Pont-de-Veyle
- Postcode area 01300 Belley
- Postcode area 01310 Polliat
- Postcode area 01320 Chalamont
- Postcode area 01330 Villars-les-Dombes
- Postcode area 01340 Montrevel-en-Bresse
- Postcode area 01350 Culoz
- Postcode area 01360 La Valbonne
- Postcode area 01370 Saint-Étienne-du-Bois
- Postcode area 01380 Bâgé-le-Châtel
- Postcode area 01390 Saint-André-de-Corcy
- Postcode area 01400 Châtillon-sur-Chalaronne
- Postcode area 01410 Chézery-Forens
- Postcode area 01420 Seyssel
- Postcode area 01430 Maillat
- Postcode area 01440 Viriat
- Postcode area 01450 Poncin
- Postcode area 01460 Montréal-la-Cluse
- Postcode area 01470 Serrières-de-Briord
- Postcode area 01480 Jassans-Riottier
- Postcode area 01500 Ambérieu-en-Bugey
- Postcode area 01510 Virieu-le-Grand
- Postcode area 01540 Vonnas
- Postcode area 01550 Collonges
- Postcode area 01560 Saint-Trivier-de-Courtes
- Postcode area 01570 Feillens
- Postcode area 01580 Izernore
- Postcode area 01590 Dortan
- Postcode area 01600 Trévoux
- Postcode area 01630 Saint-Genis-Pouilly
- Postcode area 01640 Jujurieux
- Postcode area 01660 Mézériat
- Postcode area 01680 Lhuis
- Postcode area 01700 Miribel
- Postcode area 01710 Thoiry
- Postcode area 01750 Replonges
- Postcode area 01800 Meximieux
- Postcode area 01851 Marboz
- Postcode area 01960 Péronnas
- Postcode area 01990 Saint-Trivier-sur-Moignans