Postcode areas 12XXX
- Postcode area 12000 Rodez
- Postcode area 12100 Millau
- Postcode area 12110 Aubin
- Postcode area 12120 Cassagnes-Bégonhès
- Postcode area 12130 Saint-Geniez-d'Olt
- Postcode area 12140 Entraygues-sur-Truyère
- Postcode area 12150 Sévérac-le-Château
- Postcode area 12160 Baraqueville
- Postcode area 12170 Réquista
- Postcode area 12190 Estaing
- Postcode area 12200 Villefranche-de-Rouergue
- Postcode area 12210 Laguiole
- Postcode area 12220 Montbazens
- Postcode area 12230 La Cavalerie
- Postcode area 12240 Rieupeyroux
- Postcode area 12250 Roquefort-sur-Soulzon
- Postcode area 12260 Villeneuve
- Postcode area 12270 Najac
- Postcode area 12290 Pont-de-Salars
- Postcode area 12300 Decazeville
- Postcode area 12310 Laissac
- Postcode area 12320 Saint-Cyprien-sur-Dourdou
- Postcode area 12330 Marcillac-Vallon
- Postcode area 12340 Bozouls
- Postcode area 12350 Lanuéjouls
- Postcode area 12360 Camarès
- Postcode area 12370 Belmont-sur-Rance
- Postcode area 12380 Saint-Sernin-sur-Rance
- Postcode area 12390 Rignac
- Postcode area 12400 Saint-Affrique
- Postcode area 12410 Salles-Curan
- Postcode area 12420 Sainte-Geneviève-sur-Argence
- Postcode area 12430 Villefranche-de-Panat
- Postcode area 12440 La Salvetat-Peyralès
- Postcode area 12450 Luc-la-Primaube
- Postcode area 12460 Saint-Amans-des-Cots
- Postcode area 12470 Saint-Chély-d'Aubrac
- Postcode area 12480 Broquiès
- Postcode area 12490 Saint-Rome-de-Cernon
- Postcode area 12500 Espalion
- Postcode area 12510 Olemps
- Postcode area 12520 Aguessac
- Postcode area 12540 Cornus
- Postcode area 12550 Coupiac
- Postcode area 12560 Campagnac
- Postcode area 12580 Campuac
- Postcode area 12600 Mur-de-Barrez
- Postcode area 12620 Saint-Beauzély
- Postcode area 12630 Gages
- Postcode area 12640 Rivière-sur-Tarn
- Postcode area 12700 Capdenac-Gare
- Postcode area 12720 Mostuéjouls
- Postcode area 12740 Sébazac-Concourès
- Postcode area 12780 Vézins-de-Lévézou
- Postcode area 12800 Naucelle
- Postcode area 12850 Onet-le-Château