| GAS45 | Orléans Grenier a Sel | 29000 | | | | | | |
| MON45 | Montargis | 25000 | | | | | | |
| MRC45 | Orléans Saint Marceau | 21000 | | | | | | |
| MST45 | Orléans Marie Stuart | 18000 | | | | | | |
| DOU45 | Saint-Jean-de-la-Ruelle Doumer | 17000 | | | | | | |
| SOU45 | Orléans La Source | 14000 | | | | | | |
| SAR45 | Saran | 11000 | | | | | | |
| GIE45 | Gien | 10000 | | | | | | |
| PIH45 | Pithiviers | 8000 | | | | | | |
| SJB45 | Saint-Jean-de-Braye | 7000 | | | | | | |
| BGY45 | Beaugency | 6000 | | | | | | |
| CCY45 | Chécy | 6000 | | | | | | |
| CSL45 | Châteauneuf-sur-Loire | 4500 | | | | | | |
| FSA45 | La Ferté-Saint-Aubin | 3700 | | | | | | |
| MNG45 | Meung-sur-Loire | 3600 | | | | | | |
| JRG45 | Jargeau | 3500 | | | | | | |
| DEV45 | Saint-Denis-en-Val | 3400 | | | | | | |
| SAY45 | Saint-Ay | 3100 | | | | | | |
| FAY45 | Fay-aux-Loges | 2600 | | | | | | |
| CSA45 | Cléry-Saint-André | 2000 | | | | | | |
| DHL45 | Saint-Denis-de-l'Hôtel | 1900 | | | | | | |
| SDN45 | Sandillon | 1800 | | | | | | |
| LAD45 | Ladon | 1350 | | | | | | |
| HSM45 | Saint-Hilaire-Saint-Mesmin | 1350 | | | | | | |
| BSB45 | Boigny-sur-Bionne | 1150 | | | | | | |
| MAP45 | Mareau-aux-Prés | 1100 | | | | | | |
| BOI45 | Boiscommun | 1050 | | | | | | |
| 5MG45 | La Chapelle-Saint-Mesmin Gabelliere | 950 | | | | | | |
| 5MP45 | La Chapelle-Saint-Mesmin Pervenches | 850 | | | | | | |
| 5MA45 | La Chapelle-Saint-Mesmin Auvernais | 600 | | | | | | |
| 5MM45 | La Chapelle-Saint-Mesmin Montaut | 400 | | | | | | |
Taille moyenne des NRA : 6 803 lignes
Taille du NRA médian : 3 500 lignes
210 900 lignes au total