| Commune | Code |
| Alairac | ALA |
| Alzonne | ALZ |
| Arzens | ARZ |
| Berriac | BER |
| Bram | BRA |
| Brousses | BRO |
| Carcassonne | CAR |
| Castelnaudary | CAS |
| Caux | CAU |
| Cépie | CEP |
| Conques sur Orbiel | CSO |
| Corneille | COR |
| Fraisse Cabardès | FRA |
| Grèzes | GRE |
| Homps | HOM |
| La Force | LAF |
| Langeais | LAN |
| Lasbordes (Castelnaudary) | LAS |
| Limoux | LIM |
| Loupiac | LOU |
| Malras | MAL |
| Mazeroles | MAZ |
| Mazerolles | MAZ |
| Montelar | MLR |
| Montolieu | MTL |
| Montréal | MON |
| Moussoulens | MOU |
| Niort de Sault | NIO |
| Pennautier | PEN |
| Peyrens | PEY |
| Pezens | PEZ |
| Preixan | PRE |
| Puisserguier (34) | PUI |
| Raissac | RAI |
| Saint Martin de Lalande | SML |
| Sainte Eulalie | SE |
| Saissac | SAI |
| Sauzens | SAU |
| Sète | SET |
| Ventenac Cabardès | VEN |
| Verseille | VER |
| Villalier | VLR |
| Villeneuve le Comtal | VLC |
| Villeneuve lès Montréal | VLM |
| Villepinte | VPT |
| Villesèquelande | VSL |
| Villesicle | VSC |