This department has 285 communes.
| Code | Name | Population |
|---|---|---|
| 12202 | Rodez | 23 981 |
| 12145 | Millau | 22 044 |
| 12176 | Onet-le-Château | 12 080 |
| 12300 | Villefranche-de-Rouergue | 11 271 |
| 12208 | Saint-Affrique | 7 941 |
This department has 25 cantons.
| Code | Name | Central office |
|---|---|---|
| 1201 | Aubrac et Carladez | Laguiole |
| 1202 | Aveyron et Tarn | Rieupeyroux |
| 1203 | Causse-Comtal | Sébazac-Concourès |
| 1204 | Causses-Rougiers | La Cavalerie |
| 1205 | Ceor-Ségala | Baraqueville |
This department has 3 departmental arrondissements.
| Code | Name | Administrative seat |
|---|---|---|
| 121 | Millau | Millau |
| 122 | Rodez | Rodez |
| 123 | Villefranche-de-Rouergue | Villefranche-de-Rouergue |