| VSP56 | Vannes Pargo | 20000 | | | | | |
| LTL56 | Lorient Lanveur | 20000 | | | | | |
| LTC56 | Lorient Centre | 16068 | | | | | |
| VSR56 | Vannes Republique | 16000 | | | | | |
| LNR56 | Lanester | 12000 | | | | | |
| AUY56 | Auray | 11083 | | | | | |
| PTY56 | Pontivy | 11000 | | | | | |
| HEN56 | Hennebont | 8000 | | | | | |
| PLM56 | Ploërmel | 7000 | | | | | |
| QUE56 | Quéven | 6000 | | | | | |
| QUI56 | Quiberon | 5893 | | | | | |
| PLO56 | Ploemeur | 5385 | | | | | |
| CAN56 | Carnac | 5187 | | | | | |
| LOC56 | Moréac Locmine | 5065 | | | | | |
| SAZ56 | Sarzeau | 4766 | | | | | |
| LAR56 | Larmor-Plage | 4186 | | | | | |
| STA56 | Saint-Avé Le Poteau | 4041 | | | | | |
| MUZ56 | Muzillac | 3965 | | | | | |
| RIA56 | Riantec | 3895 | | | | | |
| BLZ56 | Belz | 3678 | | | | | |
| QBT56 | Questembert | 3533 | | | | | |
| GDL56 | Guidel | 3504 | | | | | |
| AZN56 | Arzon | 3500 | | | | | |
| SNP56 | Séné Poulfanc | 3500 | | | | | |
| JOS56 | Josselin | 3317 | | | | | |
| BAD56 | Baden | 3097 | | | | | |
| NIV56 | Nivillac | 3094 | | | | | |
| PLY56 | Plouay | 3073 | | | | | |
| THX56 | Theix | 3040 | | | | | |
| PAL56 | Le Palais | 3025 | | | | | |
| MLT56 | Malestroit | 2942 | | | | | |
| STY56 | Sainte-Anne-d'Auray | 2910 | | | | | |
| STP56 | Saint-Philibert | 2865 | | | | | |
| MER56 | Merlevenez | 2846 | | | | | |
| PHC56 | Plouhinec | 2775 | | | | | |
| BAU56 | Baud | 2771 | | | | | |
| CAU56 | Caudan | 2735 | | | | | |
| INZ56 | Inzinzac-Lochrist | 2594 | | | | | |
| PVR56 | Pluvigner | 2582 | | | | | |
| DMG56 | Damgan | 2543 | | | | | |
| GOU56 | Gourin | 2515 | | | | | |
| POR56 | Port-Louis | 2500 | | | | | |
| LGC56 | Languidic | 2475 | | | | | |
| ARD56 | Arradon | 2449 | | | | | |
| LGA56 | La Gacilly | 2399 | | | | | |
| SNE56 | Séné | 2324 | | | | | |
| TRM56 | La Trinité-sur-Mer | 2257 | | | | | |
| STG56 | Saint-Gildas-de-Rhuys | 2191 | | | | | |
| CLE56 | Cléguer | 2178 | | | | | |
| GER56 | Guer | 2175 | | | | | |
| SAB56 | Saint-Avé Bourg | 2074 | | | | | |
| PIA56 | Peillac | 2021 | | | | | |
| PSO56 | Plescop | 2000 | | | | | |
| ELB56 | Elven Bourg | 1990 | | | | | |
| GMR56 | Ploemeur Guermeur | 1963 | | | | | |
| LDL56 | Landaul | 1890 | | | | | |
| FAO56 | Le Faouët | 1869 | | | | | |
| STQ56 | Saint-Pierre-Quiberon | 1866 | | | | | |
| GCP56 | Grand-Champ | 1853 | | | | | |
| STN56 | Saint-Nolff | 1833 | | | | | |
| CHC56 | La Chapelle-Caro | 1814 | | | | | |
| PNT56 | Pénestin | 1784 | | | | | |
| GBP56 | Guidel Bas Pouldu | 1777 | | | | | |
| SZR56 | Surzur | 1776 | | | | | |
| BNO56 | Bono | 1770 | | | | | |
| GRX56 | Groix | 1752 | | | | | |
| ROH56 | Rohan | 1723 | | | | | |
| NYP56 | Noyal-Pontivy | 1716 | | | | | |
| MAR56 | Mauron | 1670 | | | | | |
| PLU56 | Pluméliau | 1667 | | | | | |
| PLC56 | Plumelec | 1596 | | | | | |
| GRB56 | Guer Bellevue | 1568 | | | | | |
| PEA56 | Péaule | 1528 | | | | | |
| PHR56 | Plouharnel | 1500 | | | | | |
| LT156 (LTL56) | Lorient Keryado | 1499 | | | | | |
| ELK56 | Elven Kerviguen | 1490 | | | | | |
| SER56 | Sérent | 1489 | | | | | |
| GSS56 | Guémené-sur-Scorff | 1484 | | | | | |
| ALE56 | Allaire | 1448 | | | | | |
| PRE56 | Ploeren | 1448 | | | | | |
| PLL56 | Ploemel | 1400 | | | | | |
| LQR56 | Locmariaquer | 1342 | | | | | |
| KER56 | Lanester Kerpont | 1339 | | | | | |
| STJ56 | Saint-Jean-Brévelay | 1334 | | | | | |
| ERV56 | Erdeven | 1331 | | | | | |
| FRL56 | Férel | 1329 | | | | | |
| BUB56 | Bubry | 1314 | | | | | |
| CMR56 | Camors | 1294 | | | | | |
| CLG56 | Cléguérec | 1290 | | | | | |
| TDP56 | Le Tour-du-Parc | 1261 | | | | | |
| ES956 | Meslan | 1220 | | | | | |
| CT556 | Carentoir | 1203 | | | | | |
| ROT56 | Rochefort-en-Terre | 1197 | | | | | |
| COL56 | Sarzeau Saint Colombier | 1189 | | | | | |
| CPN56 | Campénéac | 1175 | | | | | |
| LVT56 | Landévant | 1165 | | | | | |
| SDO56 | Saint-Dolay | 1139 | | | | | |
| GIF56 | Guiscriff | 1131 | | | | | |
| CDA56 | Caden L'Ardoise | 1120 | | | | | |
| SMA56 | Saint-Martin | 1062 | | | | | |
| BOC56 | Guégon | 1053 | | | | | |
| CPO56 | Colpo | 1039 | | | | | |
| LOY56 | Loyat | 1039 | | | | | |
| MR956 | Melrand | 1017 | | | | | |
| LAE56 | Larré | 1012 | | | | | |
| MTB56 | Monterblanc | 989 | | | | | |
| BC956 | Berric | 961 | | | | | |
| BRH56 | Bréhan | 941 | | | | | |
| ING56 | Inguiniel | 941 | | | | | |
| STC56 | Saint-Caradec-Trégomel | 929 | | | | | |
| NEU56 | Neulliac | 926 | | | | | |
| LCG56 | Locmaria-Grand-Champ | 914 | | | | | |
| GIL56 | Guilliers | 883 | | | | | |
| PFT56 | Pleugriffet | 855 | | | | | |
| RUX56 | Rieux | 855 | | | | | |
| REG56 | Réguiny | 840 | | | | | |
| TPH56 | La Trinité-Porhoët | 820 | | | | | |
| GRN56 | Guern | 820 | | | | | |
| SZN56 | Sauzon | 818 | | | | | |
| AZL56 | Arzal | 800 | | | | | |
| PG356 | Plougoumelen | 800 | | | | | |
| PCD56 | Pleucadeuc | 790 | | | | | |
| MOI56 | Île-aux-Moines | 788 | | | | | |
| MRC56 | Moustoir-Ac | 786 | | | | | |
| NAI56 | Naizin | 764 | | | | | |
| LBI56 | Locmaria Belle Ile | 754 | | | | | |
| RFC56 | Ruffiac | 753 | | | | | |
| TPN56 | Taupont | 746 | | | | | |
| MCB56 | Ménéac Bourg | 719 | | | | | |
| RLL56 | Sarzeau Brillac | 704 | | | | | |
| GB156 | Ploemeur les mouettes | 700 | | | | | |
| PDT56 | Ploërdut | 677 | | | | | |
| BRD56 | Brandérion | 669 | | | | | |
| BGA56 | Béganne | 668 | | | | | |
| STT56 | Saint-Thuriau | 660 | | | | | |
| QTC56 | Quistinic | 653 | | | | | |
| ML956 | Malguénac | 653 | | | | | |
| BYL56 | Pluvigner Bieuzy Lanvaux | 652 | | | | | |
| CD956 | Caden Bourg | 625 | | | | | |
| LGB56 | Langonnet Bourg | 616 | | | | | |
| CAO56 | Caro | 610 | | | | | |
| SGD56 | Saint-Gérand | 607 | | | | | |
| CGD56 | Saint-Congard | 599 | | | | | |
| PDR56 | Plaudren | 589 | | | | | |
| PRY56 | Plouray | 582 | | | | | |
| PMT56 | Plumergat | 561 | | | | | |
| GU956 | Guénin | 557 | | | | | |
| MOL56 | Molac | 544 | | | | | |
| LVG56 | Lanvénégen | 519 | | | | | |
| MTF56 | Monteneuf | 518 | | | | | |
| TRD56 | Trédion | 505 | | | | | |
| STB56 | Saint-Barthélemy | 505 | | | | | |
| AC456 | Moréac eglise | 500 | | | | | |
| PL156 | Calan | 500 | | | | | |
| NM156 | Noyal-Muzillac | 500 | | | | | |
| MZ956 | Muzillac le brix | 500 | | | | | |
| LD256 | Locoal-Mendon | 500 | | | | | |
| KV256 | Kervignac eglise | 500 | | | | | |
| NY156 | Néant-sur-Yvel | 500 | | | | | |
| AU756 | Brech lorient | 500 | | | | | |
| EL256 | Ploërmel st jean de villenard | 500 | | | | | |
| ER356 | Cléguer l'enfer | 500 | | | | | |
| CP856 | Augan | 500 | | | | | |
| DM156 | Ambon | 500 | | | | | |
| NT156 (MER56) | Nostang | 500 | | | | | |
| RT156 | Pluneret meriadec | 500 | | | | | |
| RE856 | Saint-Perreux St perreux | 500 | | | | | |
| RE556 | Saint-Jean-la-Poterie St jean la poterie | 500 | | | | | |
| QB256 | Questembert noyal muzillac | 500 | | | | | |
| KV156 | Kervignac kernours | 500 | | | | | |
| JO556 | Saint-Servant | 500 | | | | | |
| GN356 | Bignan | 500 | | | | | |
| JO356 | La Croix-Helléan | 500 | | | | | |
| VK156 | Vannes | 500 | | | | | |
| PZA56 | Priziac | 480 | | | | | |
| GU856 | Saint-Guyomard St guyomard | 400 | | | | | |
| STF56 | Saint-Malo-des-Trois-Fontaines | 392 | | | | | |
| SAL56 | Saint-Allouestre | 352 | | | | | |
| CRT56 | Concoret | 345 | | | | | |
| ARZ56 | Île-d'Arz | 336 | | | | | |
| ABB56 | Langonnet Abbaye | 330 | | | | | |
| BOH56 | Bohal | 322 | | | | | |
| ROU56 | Roudouallec | 320 | | | | | |
| SAI56 | Saint-Aignan | 317 | | | | | |
| SIL56 | Silfiac | 310 | | | | | |
| SG956 | Séglien | 308 | | | | | |
| BH456 | Brech corn er hoet | 300 | | | | | |
| TP156 | Mohon | 300 | | | | | |
| LVD56 | Lanvaudan | 299 | | | | | |
| KGN56 | Languidic Kergonan | 293 | | | | | |
| PQN56 | Inzinzac-Lochrist Penquesten | 290 | | | | | |
| NE756 | Kergrist | 250 | | | | | |
| GU356 | Porcaro | 250 | | | | | |
| PV156 | Pluvigner trelecan | 250 | | | | | |
| GO156 | Guéhenno | 250 | | | | | |
| RF156 | Saint-Nicolas-du-Tertre St nicolas du tertre | 200 | | | | | |
| LR356 | Le Cours | 200 | | | | | |
| PD856 | Saint-Tugdual St tugdual | 200 | | | | | |
| NI856 | Nivillac bonne facon | 200 | | | | | |
| GU556 | Buléon | 200 | | | | | |
| BH356 | Brech les quatre chemins | 200 | | | | | |
| RO756 | Gueltas | 200 | | | | | |
| AK156 (AUY56) | Plougoumelen Auray Kenyah | 188 | | | | | |
| TRI56 | Langonnet La Trinite | 173 | | | | | |
| GR456 | Bieuzy | 150 | | | | | |
| BY356 | Bubry st yves | 150 | | | | | |
| BO956 | Guégon coet mean | 150 | | | | | |
| BI356 | Locmaria ty seveno | 150 | | | | | |
| KE156 | Kernascléden | 150 | | | | | |
| OU256 | Saint-Laurent-sur-Oust St laurent sur oust | 150 | | | | | |
| LQ156 | Locqueltas | 150 | | | | | |
| JO656 | Guégon coet by | 150 | | | | | |
| GS256 | Persquen | 150 | | | | | |
| PI656 | Saint-Vincent-sur-Oust St vincent sur oust kerlande | 150 | | | | | |
| PI856 | Saint-Vincent-sur-Oust St vincent sur oust primeveres | 150 | | | | | |
| GE856 | Guer la croix payen | 100 | | | | | |
| GI356 | Guiscriff keriou | 100 | | | | | |
| PL456 | Pluméliau saint hilaire | 100 | | | | | |
| PI756 | Saint-Jacut-les-Pins St jacut les pins | 100 | | | | | |
| RU156 | Mauron pont ruelland | 100 | | | | | |
| SD756 | Saint-Dolay St dolay le rual burin | 100 | | | | | |
| NI756 | Nivillac morvan | 100 | | | | | |
| G0256 | Gourin st nicolas | 100 | | | | | |
| MZ856 | Ambon kerio | 100 | | | | | |
| RO256 | Pluherlin | 100 | | | | | |
| BY256 | Bubry kerbras | 100 | | | | | |
| QB156 | Questembert peaule | 100 | | | | | |
| QT156 | Quistinic pont augan | 100 | | | | | |
| LG756 | Cournon | 100 | | | | | |
| PF756 | Radenac | 100 | | | | | |
| BD756 | Baud botcario | 100 | | | | | |
| NV156 | Nivillac sainte marie | 50 | | | | | |
| FA356 | Lanvénégen loge coucou | 50 | | | | | |
| JO456 | Lanouée les croix | 50 | | | | | |
| RN156 | Berné kerhoat | 50 | | | | | |
| BH156 | Bréhan guetavet | 50 | | | | | |
| ES456 | Berné croix verte | 50 | | | | | |
| GO356 | Gourin kerbiquet | 50 | | | | | |
| GC156 | Grand-Champ ty planche | 50 | | | | | |
| GI456 | Guiscriff Guiscrif kerrionnic | 50 | | | | | |
| LT256 (LTL56) | Larmor-Plage Lorient Kerhoas | 40 | | | | | |
| HED56 | Hoedic Ile d'Hoedic | 40 | | | | | |
| HAT56 | Île-d'Houat | 40 | | | | | |
| GAC56 | Guillac | 40 | | | | | |
| FRG56 | Les Forges | 40 | | | | | |
| CN956 | La Chapelle-Neuve | 40 | | | | | |
| CRU56 | Cruguel | 40 | | | | | |
| LN956 | Langoëlan | 40 | | | | | |
| SBM56 | Saint-Brieuc-de-Mauron | 39 | | | | | |
| RGL56 | Remungol | 39 | | | | | |
| SIN56 | Le Saint | 39 | | | | | |
| QNL56 | Quelneuc | 39 | | | | | |
| MC956 | Ménéac Bourdonnais | 39 | | | | | |
| LMZ56 | Limerzel | 39 | | | | | |
| MOU56 | Moustoir-Remungol | 39 | | | | | |
| CRY56 | Nivillac Saint Cry | 39 | | | | | |
| GRY56 | Saint-Gonnery | 39 | | | | | |
| LIG56 | Lignol | 39 | | | | | |
| LIZ56 | Lizio | 39 | | | | | |
| TRL56 | Tréal | 38 | | | | | |
| SN156 (VSR56) | Vannes Prat | 38 | | | | | |
| GOR56 | Saint-Gorgon | 38 | | | | | |
| PA756 | Bangor | 0 | | | | | |
| NY256 | Kerfourn | 0 | | | | | |
| EE356 | Lanouée les buttes | 0 | | | | | |
| AC356 | Moréac kerosette | 0 | | | | | |
| PM456 | Plumelin | 0 | | | | | |
| RO856 | Crédin | 0 | | | | | |
Taille moyenne des NRA : 1 481 lignes
Taille du NRA médian : 668 lignes
396 957 lignes au total