Postcode areas 31XXX
- Postcode area 31000 Toulouse
- Postcode area 31100 Toulouse
- Postcode area 31110 Bagnères-de-Luchon
- Postcode area 31120 Portet-sur-Garonne
- Postcode area 31130 Balma
- Postcode area 31140 Aucamville
- Postcode area 31150 Fenouillet
- Postcode area 31160 Aspet
- Postcode area 31170 Tournefeuille
- Postcode area 31180 Castelmaurou
- Postcode area 31190 Auterive
- Postcode area 31200 Toulouse
- Postcode area 31210 Montréjeau
- Postcode area 31220 Cazères
- Postcode area 31230 L'Isle-en-Dodon
- Postcode area 31240 L'Union
- Postcode area 31250 Revel
- Postcode area 31260 Salies-du-Salat
- Postcode area 31270 Cugnaux
- Postcode area 31280 Drémil-Lafage
- Postcode area 31290 Villefranche-de-Lauragais
- Postcode area 31300 Toulouse
- Postcode area 31310 Montesquieu-Volvestre
- Postcode area 31320 Castanet-Tolosan
- Postcode area 31330 Grenade
- Postcode area 31340 Villemur-sur-Tarn
- Postcode area 31350 Boulogne-sur-Gesse
- Postcode area 31360 Saint-Martory
- Postcode area 31370 Rieumes
- Postcode area 31380 Montastruc-la-Conseillère
- Postcode area 31390 Carbonne
- Postcode area 31400 Toulouse
- Postcode area 31410 Noé
- Postcode area 31420 Aurignac
- Postcode area 31430 Le Fousseret
- Postcode area 31440 Saint-Béat
- Postcode area 31450 Montgiscard
- Postcode area 31460 Caraman
- Postcode area 31470 Saint-Lys
- Postcode area 31480 Cadours
- Postcode area 31490 Léguevin
- Postcode area 31500 Toulouse
- Postcode area 31510 Barbazan
- Postcode area 31520 Ramonville-Saint-Agne
- Postcode area 31530 Lévignac
- Postcode area 31540 Saint-Félix-Lauragais
- Postcode area 31550 Cintegabelle
- Postcode area 31560 Nailloux
- Postcode area 31570 Lanta
- Postcode area 31580 Saint-Plancard
- Postcode area 31590 Verfeil
- Postcode area 31600 Muret
- Postcode area 31620 Fronton
- Postcode area 31650 Saint-Orens-de-Gameville
- Postcode area 31660 Bessières
- Postcode area 31670 Labège
- Postcode area 31700 Blagnac
- Postcode area 31750 Escalquens
- Postcode area 31770 Colomiers
- Postcode area 31780 Castelginest
- Postcode area 31790 Saint-Jory
- Postcode area 31800 Saint-Gaudens
- Postcode area 31810 Venerque
- Postcode area 31820 Pibrac
- Postcode area 31830 Plaisance-du-Touch
- Postcode area 31840 Aussonne
- Postcode area 31850 Montrabé
- Postcode area 31860 Pins-Justaret
- Postcode area 31870 Lagardelle-sur-Lèze
- Postcode area 31880 La Salvetat-Saint-Gilles