| COM12 | Rodez Comtal | 16000 | | | | | | |
| MIL12 | Millau | 14000 | | | | | | |
| FOR12 | Rodez Forveille | 11000 | | | | | | |
| VRO12 | Villefranche-de-Rouergue | 8000 | | | | | | |
| DEC12 | Decazeville | 4900 | | | | | | |
| SAF12 | Saint-Affrique | 4600 | | | | | | |
| PRI12 | Luc-la-Primaube La Primaube | 3200 | | | | | | |
| ESP12 | Espalion | 3100 | | | | | | |
| CDG12 | Capdenac-Gare | 2900 | | | | | | |
| BAR12 | Baraqueville | 2300 | | | | | | |
| SEB12 | Sébazac-Concourès | 2200 | | | | | | |
| GUA12 | Aubin Le Gua | 2200 | | | | | | |
| LAI12 | Laissac | 2000 | | | | | | |
| SEV12 | Sévérac-le-Château | 1900 | | | | | | |
| NAG12 | Naucelle Gare | 1700 | | | | | | |
| STZ12 | Saint-Geniez-d'Olt | 1600 | | | | | | |
| VLY12 | Valady | 1600 | | | | | | |
| BOZ12 | Bozouls | 1600 | | | | | | |
| REQ12 | Réquista | 1500 | | | | | | |
| AGU12 | Aguessac | 1450 | | | | | | |
| MCL12 | Marcillac-Vallon | 1450 | | | | | | |
| RIG12 | Rignac | 1400 | | | | | | |
| FIR12 | Firmi | 1400 | | | | | | |
| MBZ12 | Montbazens | 1400 | | | | | | |
| MDZ12 | Mur-de-Barrez | 1300 | | | | | | |
| RYX12 | Rieupeyroux | 1300 | | | | | | |
| BOI12 | Boisse-Penchot | 1100 | | | | | | |
| VVE12 | Villeneuve | 1050 | | | | | | |
| FLA12 | Flavin | 1050 | | | | | | |
| DRU12 | Druelle | 1000 | | | | | | |
| LAG12 | Laguiole | 950 | | | | | | |
| SGL12 | Saint-Georges-de-Luzençon | 900 | | | | | | |
| SGE12 | Sainte-Geneviève-sur-Argence | 900 | | | | | | |
| PSA12 | Pont-de-Salars | 850 | | | | | | |
| ENT12 | Entraygues-sur-Truyère | 850 | | | | | | |
| FOU12 | La Fouillade | 800 | | | | | | |
| ROQ12 | Roquefort-sur-Soulzon | 800 | | | | | | |
| AGR12 | Saint-Parthem Port D'agres | 750 | | | | | | |
| LEV12 | La Bastide-l'Évêque | 750 | | | | | | |
| SSC12 | Salles-la-Source | 750 | | | | | | |
| STA12 | Saint-Amans-des-Cots | 750 | | | | | | |
| VPA12 | Villefranche-de-Panat | 750 | | | | | | |
| CAV12 | La Cavalerie | 700 | | | | | | |
| OLT12 | Saint-Côme-d'Olt | 700 | | | | | | |
| LNL12 | Lanuéjouls | 700 | | | | | | |
| GAG12 | Montrozier Gages | 700 | | | | | | |
| CBO12 | Cassagnes-Bégonhès | 700 | | | | | | |
| SVP12 | La Salvetat-Peyralès | 650 | | | | | | |
| SVA12 | Sanvensa | 650 | | | | | | |
| SN812 (COM12) | Rodez Sauniers | 650 | | | | | | |
| L2C12 | Luc-la-Primaube | 650 | | | | | | |
| NAN12 | Nant | 600 | | | | | | |
| SSE12 | Saint-Sernin-sur-Rance | 600 | | | | | | |
| EST12 | Estaing | 600 | | | | | | |
| MAL12 | Maleville | 600 | | | | | | |
| CMR12 | Camarès | 600 | | | | | | |
| SCU12 | Salles-Curan | 550 | | | | | | |
| TRM12 | Trémouilles | 550 | | | | | | |
| SJB12 | Saint-Jean-du-Bruel | 550 | | | | | | |
| BE712 | Belmont-sur-Rance | 550 | | | | | | |
| FLO12 | Monteils Floirac | 550 | | | | | | |
| QUE12 | Montlaur Querbes | 550 | | | | | | |
| AGE12 | Agen-d'Aveyron | 550 | | | | | | |
| XAL12 | Baraqueville Lax | 500 | | | | | | |
| ELT12 | Sainte-Eulalie-d'Olt Ste eulalie d olt | 500 | | | | | | |
| RTO12 | Bertholène | 500 | | | | | | |
| TID12 | La Bastide-l'Évêque Bastide l eveque bourg | 500 | | | | | | |
| ONB12 | Pont-de-Salars Bage | 500 | | | | | | |
| B7N12 (COM12) | Rodez Bourran | 500 | | | | | | |
| ULH12 | Drulhe | 500 | | | | | | |
| VDU12 | Saint-Salvadou St salvadou | 500 | | | | | | |
| YAK12 | Bouillac 12 | 500 | | | | | | |
| MEM12 | Vailhourles Memer | 500 | | | | | | |
| RLJ12 | Martiel le Juge | 500 | | | | | | |
| YBG12 | Trémouilles Bourg | 500 | | | | | | |
| NAJ12 | Najac | 500 | | | | | | |
| MTI12 | Martiel | 500 | | | | | | |
| LBW12 | Martiel elbes | 500 | | | | | | |
| GLX12 | Anglars-Saint-Félix Anglars st felix | 500 | | | | | | |
| 8BD12 | Vabres-l'Abbaye Vabre l'abbaye | 500 | | | | | | |
| SBE12 | Saint-Beauzély | 500 | | | | | | |
| OPS12 | Olemps | 500 | | | | | | |
| FNC12 | Flagnac | 500 | | | | | | |
| OUJ12 | La Loubière Lioujas Castelets | 500 | | | | | | |
| LKH12 | Livinhac-le-Haut | 500 | | | | | | |
| SOK12 | Sonnac C 12 | 500 | | | | | | |
| TLJ12 | Toulonjac | 500 | | | | | | |
| QBP12 | Coubisou U le puech | 500 | | | | | | |
| GBK12 | Gabriac | 500 | | | | | | |
| PAC12 | Vaureilles Pachins | 450 | | | | | | |
| SRO12 | Saint-Rome-de-Tarn | 450 | | | | | | |
| MCT12 | Muret-le-Château | 450 | | | | | | |
| VMT12 | Villecomtal | 450 | | | | | | |
| SRC12 | Saint-Rome-de-Cernon | 400 | | | | | | |
| SDR12 | Sauveterre-de-Rouergue | 400 | | | | | | |
| NAY12 | Le Nayrac | 400 | | | | | | |
| LUN12 | Lunac | 400 | | | | | | |
| PEY12 | Peyreleau | 400 | | | | | | |
| SLM12 | Salmiech | 400 | | | | | | |
| LED12 | Lédergues | 400 | | | | | | |
| LCB12 | Lacroix-Barrez | 400 | | | | | | |
| ALP12 | Alpuech | 400 | | | | | | |
| AS212 | Asprières | 400 | | | | | | |
| CB912 | Colombiès | 350 | | | | | | |
| SL712 | Saint-Laurent-d'Olt | 350 | | | | | | |
| SLE12 | Saint-Léons | 350 | | | | | | |
| GL212 | Galgan | 350 | | | | | | |
| SEN12 | Sénergues | 350 | | | | | | |
| SEG12 | Ségur | 350 | | | | | | |
| BRO12 | Broquiès | 350 | | | | | | |
| SCH12 | Saint-Chély-d'Aubrac | 350 | | | | | | |
| OER12 | Ols-et-Rinhodes | 350 | | | | | | |
| VIM12 | Vimenet | 350 | | | | | | |
| LUP12 | Causse-et-Diège Loupiac | 350 | | | | | | |
| CED12 | Causse-et-Diège | 350 | | | | | | |
| S8C12 | Savignac | 350 | | | | | | |
| CT912 | Calmont | 350 | | | | | | |
| SCR12 | Sainte-Croix | 300 | | | | | | |
| SHI12 | Saint-Hippolyte | 300 | | | | | | |
| SML12 | Saint-Martin-de-Lenne | 300 | | | | | | |
| DRQ12 | Durenque | 300 | | | | | | |
| ARV12 | Arvieu | 300 | | | | | | |
| CPI12 | Coupiac | 300 | | | | | | |
| CPC12 | Campuac | 300 | | | | | | |
| BZN12 | Rodelle Bezonnes | 300 | | | | | | |
| SC312 | Salles-Courbatiès | 300 | | | | | | |
| MYN12 | Mayran | 300 | | | | | | |
| MOY12 | Moyrazès | 300 | | | | | | |
| QUI12 | Quins | 300 | | | | | | |
| SVI12 | Saint-Victor-et-Melvieu | 250 | | | | | | |
| LTR12 | Le Truel | 250 | | | | | | |
| THE12 | Thérondels | 250 | | | | | | |
| CPN12 | Crespin | 250 | | | | | | |
| VEL12 | Versols-et-Lapeyre | 250 | | | | | | |
| CSA12 | Canet-de-Salars | 250 | | | | | | |
| VEZ12 | Vézins-de-Lévézou | 250 | | | | | | |
| ABB12 | Druelle Abbas | 250 | | | | | | |
| COQ12 | Conques | 250 | | | | | | |
| CN412 | Cornus | 250 | | | | | | |
| IBA12 | Le Vibal | 250 | | | | | | |
| BSQ12 | Brusque | 250 | | | | | | |
| BO612 | Rivière-sur-Tarn Boyne | 250 | | | | | | |
| GTR12 | Goutrens | 250 | | | | | | |
| NCA12 | Naussac | 250 | | | | | | |
| AUZ12 | Auzits | 250 | | | | | | |
| CBZ12 | Colombiès Combrouze | 250 | | | | | | |
| MNJ12 | Montjaux | 250 | | | | | | |
| CMP12 | Compolibat | 250 | | | | | | |
| SSL12 | Saint-Saturnin-de-Lenne | 250 | | | | | | |
| CT712 | Cantoin | 250 | | | | | | |
| PRD12 | Pradinas | 250 | | | | | | |
| 8RR12 | Bozouls Barriac | 250 | | | | | | |
| RUL12 | Rullac-Saint-Cirq Rulhac | 250 | | | | | | |
| FOD12 | Fondamente | 250 | | | | | | |
| FAY12 | Fayet | 250 | | | | | | |
| CAC12 | Campagnac | 250 | | | | | | |
| 8RU12 | Auzits Rulhe | 250 | | | | | | |
| HOS12 | L'Hospitalet-du-Larzac | 250 | | | | | | |
| CUR12 | Curan | 250 | | | | | | |
| ALJ12 | Almont-les-Junies | 250 | | | | | | |
| 8AK12 | Salles-Curan St martin des faux | 200 | | | | | | |
| RIR12 | Curières | 200 | | | | | | |
| HCY12 | Le Cayrol | 200 | | | | | | |
| 8SO12 | Soulages-Bonneval | 200 | | | | | | |
| LBF12 | La Capelle-Bleys | 200 | | | | | | |
| GOL12 | Golinhac | 200 | | | | | | |
| PTF12 | Villeneuve septfonds | 200 | | | | | | |
| PDA12 | Prades-d'Aubrac | 200 | | | | | | |
| 8BA12 | Cassagnes-Bégonhès Caucard | 200 | | | | | | |
| BNZ12 | Bournazel | 200 | | | | | | |
| VTI12 | Vabre-Tizac | 200 | | | | | | |
| LFI12 | Millau Les Fialets | 200 | | | | | | |
| LUL12 | Saint-Félix-de-Lunel | 200 | | | | | | |
| IZA12 | Saint-Izaire | 200 | | | | | | |
| VDT12 | Viala-du-Tarn | 200 | | | | | | |
| SJD12 | Saint-Jean-et-Saint-Paul Saint Jean D'alcas | 200 | | | | | | |
| CM412 | Montagnol Cemones | 200 | | | | | | |
| CEN12 | Centrès | 200 | | | | | | |
| IAM12 | Martrin | 150 | | | | | | |
| DLS12 | Castelnau-de-Mandailles Mandailles | 150 | | | | | | |
| FE712 | Le Fel | 150 | | | | | | |
| 6AA12 | Montsalès | 150 | | | | | | |
| FMB12 | Firmi bessenoits | 150 | | | | | | |
| EZI12 | Laval-Roquecezière | 150 | | | | | | |
| APE12 | Le Nayrac Florentin la chapelle | 150 | | | | | | |
| ALR12 | Alrance | 150 | | | | | | |
| UVR12 | La Couvertoirade | 150 | | | | | | |
| 8MA12 | Colombiès Limayrac | 150 | | | | | | |
| RPH12 | Huparlac | 150 | | | | | | |
| 8RA12 | Gramond | 150 | | | | | | |
| BNR12 | Campouriez Banhars | 150 | | | | | | |
| BCH12 | Brousse-le-Château | 150 | | | | | | |
| LSE12 | La Selve | 150 | | | | | | |
| 8BU12 | Boussac 12 | 150 | | | | | | |
| RPN12 | Pruines | 150 | | | | | | |
| 8AP12 | Brasc | 150 | | | | | | |
| 8BH12 | Tauriac-de-Naucelle | 150 | | | | | | |
| CMA12 | Castelnau-de-Mandailles | 150 | | | | | | |
| SZS12 | Saint-André-de-Vézines | 150 | | | | | | |
| ELV12 | Calmels-et-le-Viala Calmels Le Viala | 150 | | | | | | |
| ENG12 | Sévérac-le-Château Engayresque | 150 | | | | | | |
| MTZ12 | Montrozier | 150 | | | | | | |
| SAG12 | Condom-d'Aubrac Salgues | 150 | | | | | | |
| JU412 | Saint-Juéry | 150 | | | | | | |
| L2G12 | La Selve Lagarde | 150 | | | | | | |
| LE712 | Lestrade-et-Thouels | 150 | | | | | | |
| PL712 | Plaisance | 150 | | | | | | |
| PIE12 | La Roque-Sainte-Marguerite Pierrefiche Du Larzac | 150 | | | | | | |
| LST12 | Lassouts | 150 | | | | | | |
| MPX12 | Mounes-Prohencoux | 150 | | | | | | |
| 8AM12 | Camboulazet Beauregard | 150 | | | | | | |
| MRS12 | Murasson | 150 | | | | | | |
| EUK12 | Sainte-Eulalie-de-Cernon Ste eulalie de cernon | 150 | | | | | | |
| 8AY12 | Saint-Félix-de-Sorgues St felix de sorgues | 150 | | | | | | |
| 8BC12 | Saint-Affrique Bournac | 150 | | | | | | |
| 8AB12 | Rodelle St julien de rodelle | 150 | | | | | | |
| 8BG12 | Saint-Just-sur-Viaur | 150 | | | | | | |
| 8BB12 | Peyrusse-le-Roc | 150 | | | | | | |
| RTM12 | Saint-Sever-du-Moustier | 150 | | | | | | |
| 8AT12 | Montpeyroux St remy | 150 | | | | | | |
| 8YS12 | Salles-la-Source Seveyrac | 150 | | | | | | |
| 8IE12 | Sauclières | 150 | | | | | | |
| 8HG12 | Saint-Symphorien-de-Thénières St symphorien de thenieres st gervais | 100 | | | | | | |
| DRS12 | Prades-Salars | 100 | | | | | | |
| NUX12 | Montpeyroux | 100 | | | | | | |
| PYO12 | Pomayrols | 100 | | | | | | |
| TJP12 | Saint-Jean-et-Saint-Paul St jean et st paul | 100 | | | | | | |
| SZC12 | Sébrazac | 100 | | | | | | |
| RRV12 | Verrières | 100 | | | | | | |
| YMP12 | Saint-Symphorien-de-Thénières Es | 100 | | | | | | |
| NTF12 | Montfranc | 100 | | | | | | |
| VTJ12 | Sauveterre-de-Rouergue jouels | 100 | | | | | | |
| LCL12 | Le Clapier | 100 | | | | | | |
| 8AF12 | Najac Villevayre | 100 | | | | | | |
| 8AE12 | Murols | 100 | | | | | | |
| 8AS12 | Fondamente St maurice de sorgues | 100 | | | | | | |
| 8AC12 | Bor-et-Bar Bar | 100 | | | | | | |
| 8AX12 | Laval-Roquecezière St maurice | 100 | | | | | | |
| 8AD12 | Bor-et-Bar Bar | 100 | | | | | | |
| 8AR12 | Bessuéjouls St pierre | 100 | | | | | | |
| 8BE12 | Aurelle-Verlac | 100 | | | | | | |
| 8AQ12 | La Bastide-Solages Solages | 100 | | | | | | |
| NIG12 | Thérondels Nigresserre | 100 | | | | | | |
| NDA12 | Arvieu Notre Dame D'aures | 100 | | | | | | |
| MAV12 | Montclar | 100 | | | | | | |
| LRO12 | Vézins-de-Lévézou Le Roucous | 100 | | | | | | |
| 8AA12 | Saint-Parthem St parthem | 100 | | | | | | |
| 8AH12 | Salles-Curan Moulin du roc | 100 | | | | | | |
| 8AL12 | Sénergues Lagarde | 100 | | | | | | |
| ZCT12 | Les Costes-Gozon | 100 | | | | | | |
| KDO12 | Condom-d'Aubrac | 100 | | | | | | |
| CXM12 | Combret | 100 | | | | | | |
| OAC12 | Boussac cussan | 100 | | | | | | |
| TSB12 | Belcastel | 100 | | | | | | |
| BPD12 | La Bastide-Pradines | 100 | | | | | | |
| YRA12 | Ambeyrac | 100 | | | | | | |
| ESK12 | Escandolières | 100 | | | | | | |
| SCJ12 | Saujac | 100 | | | | | | |
| IGS12 | Saint-Igest | 100 | | | | | | |
| 8LA12 | Marnhagues-et-Latour Latour | 100 | | | | | | |
| 8AG12 | Viala-du-Tarn Coudols | 100 | | | | | | |
| 8AW12 | Prades-d'Aubrac Brameloup | 50 | | | | | | |
| KON12 | Connac | 50 | | | | | | |
| YBU12 | Curières le bouyssou | 50 | | | | | | |
| 8AZ12 | Arnac-sur-Dourdou | 50 | | | | | | |
| 8AN12 | Mélagues | 50 | | | | | | |
| OT112 | Saint-Santin St santin bourg | 0 | | | | | | |
| OTB12 | Saint-Santin St santin brayes | 0 | | | | | | |
| PJR12 | Castelnau-Pégayrols bourg | 0 | | | | | | |
| PNX12 | Saint-Hippolyte Pons | 0 | | | | | | |
| PVK12 | Privezac C | 0 | | | | | | |
| QBC12 | Coubisou U le causse | 0 | | | | | | |
| RDT12 | Brandonnet T | 0 | | | | | | |
| ONP12 | Lapanouse-de-Cernon N | 0 | | | | | | |
| OMY12 | Pousthomy Y | 0 | | | | | | |
| OIK12 | Auriac-Lagast | 0 | | | | | | |
| NMR12 | Maleville Mauron | 0 | | | | | | |
| NLH12 | Conques Noailhac 12 | 0 | | | | | | |
| NJK12 | Saint-André-de-Najac St andre de najac | 0 | | | | | | |
| NCQ12 | Onet-le-Château la roquette | 0 | | | | | | |
| MJS12 | Mostuéjouls S | 0 | | | | | | |
| MJM12 | Montjaux X marzials | 0 | | | | | | |
| MJK12 | Meljac | 0 | | | | | | |
| RJK12 | Saint-André-de-Najac St andre de najac roussijac | 0 | | | | | | |
| RNH12 | Sévérac-le-Château Lavernhe | 0 | | | | | | |
| RPR12 | Rieupeyroux X rivieres | 0 | | | | | | |
| Z1S12 | Sévérac-le-Château Buzeins | 0 | | | | | | |
| YSI12 | Salles-la-Source Salles vayssiere | 0 | | | | | | |
| YRK12 | Espeyrac C | 0 | | | | | | |
| VYO12 | Veyreau U | 0 | | | | | | |
| VTK12 | Sainte-Geneviève-sur-Argence Vitrac bourg | 0 | | | | | | |
| VQK12 | La Bastide-l'Évêque La bastide cadour | 0 | | | | | | |
| VJX12 | Viala-du-Pas-de-Jaux X | 0 | | | | | | |
| UPT12 | Millau potensac | 0 | | | | | | |
| UJ112 | La Loubière E | 0 | | | | | | |
| TRQ12 | Tayrac | 0 | | | | | | |
| SZV12 | Sébrazac C verrieres | 0 | | | | | | |
| SSK12 | Sainte-Geneviève-sur-Argence Graissac | 0 | | | | | | |
| SFU12 | Saint-Félix-de-Lunel St felix de lunel | 0 | | | | | | |
| RQZ12 | Roquefort-sur-Soulzon N | 0 | | | | | | |
| RQO12 | La Rouquette E orlhonac | 0 | | | | | | |
| RQB12 | La Rouquette E bourg | 0 | | | | | | |
| ZOB12 | Les Albres S | 0 | | | | | | |
| MHH12 | Morlhon-le-Haut T | 0 | | | | | | |
| GNZ12 | Sébrazac C st geniez des ers | 0 | | | | | | |
| FSC12 | Foissac C | 0 | | | | | | |
| FEK12 | Le Fel L font de coste | 0 | | | | | | |
| EGK12 | Entraygues-sur-Truyère Entraygues la castanie | 0 | | | | | | |
| BQC12 | La Bastide-l'Évêque La bastide l eveque combret | 0 | | | | | | |
| BKO12 | Balaguier-d'Olt T | 0 | | | | | | |
| AZC12 | Auzits S coustal | 0 | | | | | | |
| ZNL12 | Sévérac-le-Château Lapanouse | 0 | | | | | | |
| REC12 | Sévérac-le-Château Recoules | 0 | | | | | | |
| SVJ12 | La Selve begon | 0 | | | | | | |
| CRU12 | Palmas Cruejouls | 0 | | | | | | |
| NVP12 | Nauviale | 0 | | | | | | |
| BA812 | Druelle Balsac | 0 | | | | | | |
| SCY12 | Conques St cyprien sur dourdou | 0 | | | | | | |
| GRV12 | Conques Grand vabre | 0 | | | | | | |
| KPK12 | Comprégnac | 0 | | | | | | |
| GRK12 | Réquista Griac | 0 | | | | | | |
| HYB12 | Saint-Chély-d'Aubrac St chely bonnefon | 0 | | | | | | |
| IED12 | Saint-Jean-d'Alcapiès St jean d alcapies | 0 | | | | | | |
| LTI12 | Sainte-Geneviève-sur-Argence La terrisse | 0 | | | | | | |
| LKP12 | Lunac C poste | 0 | | | | | | |
| KYR12 | Castanet lardeyrolles | 0 | | | | | | |
| KUS12 | Palmas Coussergues | 0 | | | | | | |
| KSN12 | Castanet T bourg | 0 | | | | | | |
| KSJ12 | Cassuéjouls S | 0 | | | | | | |
| KPG12 | Castelnau-Pégayrols S | 0 | | | | | | |
| KPD12 | Comps-la-Grand-Ville Comps couderc | 0 | | | | | | |
| KPB12 | La Capelle-Balaguier R | 0 | | | | | | |
| KMZ12 | Lunac C les mazieres | 0 | | | | | | |
| KJK12 | Camjac C | 0 | | | | | | |
| KCN12 | Salmiech H carcenac | 0 | | | | | | |
| KBN12 | Cabanès S 12 | 0 | | | | | | |
| KAV12 | Gaillac-d'Aveyron N | 0 | | | | | | |
| JPB12 | Sainte-Juliette-sur-Viaur Ste juliette le piboul | 0 | | | | | | |
| JLT12 | Sainte-Juliette-sur-Viaur R | 0 | | | | | | |
| KSB12 | Cassagnes-Bégonhès Cassagnes le bousquet | 0 | | | | | | |
Taille moyenne des NRA : 507 lignes
Taille du NRA médian : 200 lignes
172 350 lignes au total