| VAF26 | Valence Faventines | 30000 | | | | | | |
| ROM26 | Romans-sur-Isère Saint Nicolas | 27000 | | | | | | |
| MTR26 | Montélimar | 21000 | | | | | | |
| VAC26 | Valence Cecile | 19000 | | | | | | |
| PIE26 | Pierrelatte | 8000 | | | | | | |
| POV26 | Portes-lès-Valence | 7000 | | | | | | |
| CRE26 | Crest | 7000 | | | | | | |
| SP326 | Saint-Paul-Trois-Châteaux | 6000 | | | | | | |
| LIV26 | Livron-sur-Drôme | 4700 | | | | | | |
| NYO26 | Nyons | 4700 | | | | | | |
| SVA26 | Saint-Vallier | 4400 | | | | | | |
| PO726 | Pont-de-l'Isère | 3300 | | | | | | |
| DID26 | Die | 3300 | | | | | | |
| SML26 | Saint-Marcel-lès-Valence | 3300 | | | | | | |
| SRA26 | Saint-Rambert-d'Albon | 3100 | | | | | | |
| CHL26 | Chabeuil | 3000 | | | | | | |
| SJE26 | Saint-Jean-en-Royans | 2900 | | | | | | |
| SDO26 | Saint-Donat-sur-l'Herbasse | 2900 | | | | | | |
| LLM26 (LIV26) | Loriol-sur-Drôme | 2700 | | | | | | |
| DON26 | Donzère | 2500 | | | | | | |
| BEV26 | Beaumont-lès-Valence | 2500 | | | | | | |
| CHH26 | Charols | 2400 | | | | | | |
| BLV26 | Bourg-lès-Valence | 2400 | | | | | | |
| ETO26 | Étoile-sur-Rhône | 2300 | | | | | | |
| ALX26 | Allex | 2300 | | | | | | |
| MAD26 | Chabeuil Malissard | 2200 | | | | | | |
| MAC26 | Marches | 2000 | | | | | | |
| SAU26 | Sauzet | 2000 | | | | | | |
| MAL26 | Malataverne | 2000 | | | | | | |
| DIE26 | Dieulefit | 2000 | | | | | | |
| SSO26 | Saint-Sorlin-en-Valloire | 1800 | | | | | | |
| MO426 | Montélier | 1800 | | | | | | |
| SUZ26 | Saint-Uze | 1800 | | | | | | |
| ANY26 | Anneyron | 1700 | | | | | | |
| SLR26 | Suze-la-Rousse | 1700 | | | | | | |
| BUI26 | Buis-les-Baronnies | 1700 | | | | | | |
| SAC26 | Saulce-sur-Rhône | 1700 | | | | | | |
| GRI26 | Grignan | 1700 | | | | | | |
| JAI26 | Jaillans | 1600 | | | | | | |
| GRB26 | Granges-les-Beaumont | 1600 | | | | | | |
| MOI26 | Montoison | 1500 | | | | | | |
| SPA26 | Saint-Paul-lès-Romans | 1500 | | | | | | |
| ANE26 | Andancette | 1500 | | | | | | |
| MTY26 | Montmeyran | 1400 | | | | | | |
| SNA26 | Saint-Nazaire-en-Royans | 1400 | | | | | | |
| CHG26 | Châteauneuf-de-Galaure | 1250 | | | | | | |
| GNI26 (MTR26) | Montélimar Gournier | 1250 | | | | | | |
| AAN26 | Allan | 1250 | | | | | | |
| CHI26 | Châteauneuf-sur-Isère | 1200 | | | | | | |
| PE226 | Peyrins | 1200 | | | | | | |
| MUJ26 | Montboucher-sur-Jabron | 1200 | | | | | | |
| VA326 | Valaurie | 1100 | | | | | | |
| HAU26 | Hauterives | 1100 | | | | | | |
| LBM26 | La Bégude-de-Mazenc | 1100 | | | | | | |
| PUS26 | Peyrus | 1100 | | | | | | |
| TUL26 | Tulette | 1050 | | | | | | |
| MIR26 | Mirabel-aux-Baronnies | 1050 | | | | | | |
| MA626 | Manthes | 1050 | | | | | | |
| TAU26 | Taulignan | 1000 | | | | | | |
| LCO26 | La Coucourde | 1000 | | | | | | |
| ERO26 | Érôme | 1000 | | | | | | |
| MOL26 | Mollans-sur-Ouvèze | 950 | | | | | | |
| SAI26 | Saillans | 900 | | | | | | |
| BLA26 | Mirabel-et-Blacons Blacons Et Piegros La Clastre | 900 | | | | | | |
| ALI26 | Alixan | 850 | | | | | | |
| LBR26 | La Bâtie-Rolland | 850 | | | | | | |
| MAG26 | Margès | 850 | | | | | | |
| MSL26 | Montségur-sur-Lauzon | 800 | | | | | | |
| ME426 | Mercurol | 800 | | | | | | |
| CZU26 | Albon Croisieux | 750 | | | | | | |
| XAV26 | Alixan Village | 750 | | | | | | |
| CHC26 | Chanos-Curson | 700 | | | | | | |
| VNB26 | Vinsobres | 700 | | | | | | |
| MAR26 | Marsanne | 650 | | | | | | |
| CON26 | Condorcet | 650 | | | | | | |
| MOG26 | La Motte-de-Galaure | 650 | | | | | | |
| VRY26 | Vercheny | 600 | | | | | | |
| HSZ26 | Marsaz | 500 | | | | | | |
| H1U26 | Upie | 500 | | | | | | |
| CZG26 | Chatuzange-le-Goubet | 500 | | | | | | |
| HSN26 | Hostun hd | 500 | | | | | | |
| TMB26 | Chantemerle-les-Blés nrahd | 500 | | | | | | |
| BDT26 | La Baume-de-Transit | 450 | | | | | | |
| NMB26 | Montélimar Maubec | 400 | | | | | | |
| REV26 | Réauville | 350 | | | | | | |
| ROV26 | Rochefort-en-Valdaine | 300 | | | | | | |
| HC926 | Pennes-le-Sec Colombier | 50 | | | | | | |
Taille moyenne des NRA : 2 834 lignes
Taille du NRA médian : 1 400 lignes
246 600 lignes au total