Postcode areas 03XXX
- Postcode area 03000 Moulins
- Postcode area 03100 Montluçon
- Postcode area 03110 Vendat
- Postcode area 03120 Lapalisse
- Postcode area 03130 Le Donjon
- Postcode area 03140 Chantelle
- Postcode area 03150 Varennes-sur-Allier
- Postcode area 03160 Bourbon-l'Archambault
- Postcode area 03170 Doyet
- Postcode area 03190 Hérisson
- Postcode area 03200 Vichy
- Postcode area 03210 Souvigny
- Postcode area 03220 Jaligny-sur-Besbre
- Postcode area 03230 Chevagnes
- Postcode area 03240 Le Montet
- Postcode area 03250 Le Mayet-de-Montagne
- Postcode area 03260 Saint-Germain-des-Fossés
- Postcode area 03270 Saint-Yorre
- Postcode area 03290 Dompierre-sur-Besbre
- Postcode area 03300 Cusset
- Postcode area 03310 Néris-les-Bains
- Postcode area 03320 Lurcy-Lévis
- Postcode area 03330 Bellenaves
- Postcode area 03340 Neuilly-le-Réal
- Postcode area 03350 Cérilly
- Postcode area 03360 Saint-Bonnet-Tronçais
- Postcode area 03370 Viplaix
- Postcode area 03380 Huriel
- Postcode area 03390 Montmarault
- Postcode area 03400 Yzeure
- Postcode area 03410 Domérat
- Postcode area 03420 Marcillat-en-Combraille
- Postcode area 03430 Cosne-d'Allier
- Postcode area 03440 Buxières-les-Mines
- Postcode area 03450 Ébreuil
- Postcode area 03460 Villeneuve-sur-Allier
- Postcode area 03470 Saligny-sur-Roudon
- Postcode area 03500 Saint-Pourçain-sur-Sioule
- Postcode area 03510 Molinet
- Postcode area 03600 Commentry
- Postcode area 03630 Désertines
- Postcode area 03700 Bellerive-sur-Allier
- Postcode area 03800 Gannat