| AL261 | Alençon 2 | 14000 | | | | | | |
| FLE61 | Flers | 13000 | | | | | | |
| ARG61 | Argentan | 10000 | | | | | | |
| AL161 | Alençon 1 | 10000 | | | | | | |
| AIG61 | L'Aigle | 7000 | | | | | | |
| FMA61 | La Ferté-Macé | 4500 | | | | | | |
| MTG61 | Mortagne-au-Perche | 3500 | | | | | | |
| BAG61 | Bagnoles-de-l'Orne | 2800 | | | | | | |
| SEE61 | Sées | 2800 | | | | | | |
| DOM61 | Domfront | 2700 | | | | | | |
| BLM61 | Bellême | 2200 | | | | | | |
| VIM61 | Vimoutiers | 2100 | | | | | | |
| GAC61 | Gacé | 2100 | | | | | | |
| TIN61 | Tinchebray | 2000 | | | | | | |
| THE61 | Le Theil | 1800 | | | | | | |
| ATH61 | Athis-de-l'Orne | 1700 | | | | | | |
| MEL61 | Le Mêle-sur-Sarthe | 1700 | | | | | | |
| ECO61 | Écouché | 1700 | | | | | | |
| CHA61 | Chanu | 1600 | | | | | | |
| BRZ61 | Briouze | 1600 | | | | | | |
| MES61 | Messei | 1500 | | | | | | |
| REM61 | Rémalard | 1400 | | | | | | |
| TOV61 | Tourouvre | 1300 | | | | | | |
| TRU61 | Trun | 1300 | | | | | | |
| FET61 | La Ferrière-aux-Étangs | 1100 | | | | | | |
| CRR61 | Carrouges | 1100 | | | | | | |
| LON61 | Longny-au-Perche | 1050 | | | | | | |
| GEM61 | Saint-Germain-de-la-Coudre | 1050 | | | | | | |
| GAU61 | Sainte-Gauburge-Sainte-Colombe | 1050 | | | | | | |
| PUT61 | Putanges-Pont-Écrepin | 1050 | | | | | | |
| MOT61 | Mortrée | 1050 | | | | | | |
| CPA61 | La Chapelle-d'Andaine | 1000 | | | | | | |
| DEN61 | Saint-Denis-sur-Sarthon | 950 | | | | | | |
| CET61 | Ceton | 900 | | | | | | |
| RON61 | Rônai | 800 | | | | | | |
| CME61 | Courtomer | 750 | | | | | | |
| CHB61 | Chambois | 700 | | | | | | |
| SAP61 | Le Sap | 700 | | | | | | |
| AA661 | Saint-Aubin-d'Appenai St aubin d appenai bourg | 500 | | | | | | |
| 6ML61 | Moulins-sur-Orne marteaux | 500 | | | | | | |
| 1SV61 | Saires-la-Verrerie bourg | 500 | | | | | | |
| GG161 | Saint-Georges-des-Groseillers de gaulle | 500 | | | | | | |
| L6R61 | Larré bourg | 500 | | | | | | |
| 1AX61 | Couterne alexis barre | 500 | | | | | | |
| PBP61 | Saint-Pierre-la-Bruyère St pierre la bruyere clos des perriers | 500 | | | | | | |
| F1B61 | Tinchebray Frenes bourg | 500 | | | | | | |
| UCN61 | Urou-et-Crennes ecole | 500 | | | | | | |
| 1GC61 | Le Gué-de-la-Chaîne mamers | 500 | | | | | | |
| LHB61 | Tinchebray Larchamp carrefour blondel | 500 | | | | | | |
| B6V61 | Beauvain champ du houx | 500 | | | | | | |
| GP161 | Saint-Gervais-du-Perron St gervais du perron | 500 | | | | | | |
| CIB61 | Cisai-Saint-Aubin Cisai st aubin bourg | 500 | | | | | | |
| 6RL61 | Brullemail bourg | 500 | | | | | | |
| RHM61 | Écouché Serans la harmaniere | 500 | | | | | | |
| T6A61 | Saint-Martin-l'Aiguillon St martin l aiguillon bourg | 500 | | | | | | |
| 1GA61 | Gandelain bourg | 500 | | | | | | |
| GH161 | Occagnes haut de la rue | 500 | | | | | | |
| MAH61 | Mauves-sur-Huisne | 500 | | | | | | |
| CIR61 | Ciral | 500 | | | | | | |
| FCM61 | Flers la Chapelle au Moine | 500 | | | | | | |
| 6CT61 | Chaumont | 500 | | | | | | |
| 6CS61 | La Chapelle-près-Sées | 500 | | | | | | |
| 1EB61 | Saint-Ellier-les-Bois St ellier les bois | 500 | | | | | | |
| 1MZ61 | Sainte-Marguerite-de-Carrouges Ste marguerite de carrouges la baliziere | 500 | | | | | | |
| 1MY61 | Magny-le-Désert bourg | 500 | | | | | | |
| L1S61 | Coulonges-sur-Sarthe | 500 | | | | | | |
| HB161 | Saint-Hilaire-de-Briouze St hilaire de briouze bourg | 500 | | | | | | |
| 1AB61 | Aubusson bourg | 500 | | | | | | |
| 6LD61 | Tinchebray St cornier des landes bourg | 500 | | | | | | |
| FVB61 | Ferrières-la-Verrerie bourg | 500 | | | | | | |
| P6B61 | Saint-Paul St paul bourg | 500 | | | | | | |
| B6B61 | Saint-Brice St brice bourg | 500 | | | | | | |
| CEY61 | Saint-Maurice-lès-Charencey | 400 | | | | | | |
| MUP61 | Moutiers-au-Perche | 400 | | | | | | |
| BEE61 | Athis-de-l'Orne Breel | 0 | | | | | | |
| NPV61 | Canapville belle ile | 0 | | | | | | |
| 6RM61 | La Roche-Mabile metairie | 0 | | | | | | |
Taille moyenne des NRA : 1 628 lignes
Taille du NRA médian : 500 lignes
125 350 lignes au total