Astuce :
| nom commune | pop. | code insee | code siren | code postal |
|---|---|---|---|---|
| Aisy-sous-Thil | 203 | 21007 | 212100077 | 21390 |
| Arnay-sous-Vitteaux | 112 | 21024 | 212100242 | 21350 |
| Avosnes | 88 | 21040 | 212100408 | 21350 |
| Bard-lès-Époisses | 72 | 21047 | 212100473 | 21460 |
| Beurizot | 112 | 21069 | 212100697 | 21350 |
| Boussey | 34 | 21097 | 212100978 | 21350 |
| Brain | 35 | 21100 | 212101000 | 21350 |
| Braux | 175 | 21101 | 212101018 | 21390 |
| Brianny | 105 | 21108 | 212101083 | 21390 |
| Champeau-en-Morvan | 223 | 21139 | 212101398 | 21210 |
| Champrenault | 37 | 21141 | 212101414 | 21690 |
| Charigny | 36 | 21145 | 212101455 | 21140 |
| Charny | 34 | 21147 | 212101471 | 21350 |
| Chassey | 92 | 21151 | 212101513 | 21150 |
| Chevannay | 35 | 21168 | 212101687 | 21540 |
| Clamerey | 181 | 21177 | 212101778 | 21390 |
| Corrombles | 242 | 21198 | 212101984 | 21460 |
| Corsaint | 131 | 21199 | 212101992 | 21460 |
| Courcelles-Frémoy | 148 | 21203 | 212102032 | 21460 |
| Courcelles-lès-Semur | 228 | 21205 | 212102057 | 21140 |
| Dampierre-en-Montagne | 61 | 21224 | 212102248 | 21350 |
| Dompierre-en-Morvan | 200 | 21232 | 212102321 | 21390 |
| Époisses | 724 | 21247 | 212102479 | 21460 |
| Fontangy | 157 | 21280 | 212102800 | 21390 |
| Forléans | 112 | 21282 | 212102826 | 21460 |
| Genay | 382 | 21291 | 212102917 | 21140 |
| Gissey-le-Vieil | 104 | 21298 | 212102982 | 21350 |
| Jeux-lès-Bard | 53 | 21324 | 212103246 | 21460 |
| Juillenay | 52 | 21328 | 212103287 | 21210 |
| Juilly | 41 | 21329 | 212103295 | 21140 |
| Lacour-d'Arcenay | 108 | 21335 | 212103352 | 21210 |
| Lantilly | 99 | 21341 | 212103410 | 21140 |
| Magny-la-Ville | 74 | 21365 | 212103659 | 21140 |
| Marcellois | 45 | 21377 | 212103774 | 21350 |
| Marcigny-sous-Thil | 55 | 21380 | 212103808 | 21390 |
| Marcilly-et-Dracy | 86 | 21381 | 212103816 | 21350 |
| Massingy-lès-Semur | 152 | 21394 | 212103949 | 21140 |
| Massingy-lès-Vitteaux | 92 | 21395 | 212103956 | 21350 |
| Millery | 417 | 21413 | 212104137 | 21140 |
| Missery | 105 | 21417 | 212104178 | 21210 |
| Molphey | 130 | 21422 | 212104228 | 21210 |
| Montberthault | 217 | 21426 | 212104269 | 21460 |
| Montigny-Saint-Barthélemy | 82 | 21430 | 212104301 | 21390 |
| Montigny-sur-Armançon | 157 | 21431 | 212104319 | 21140 |
| Montlay-en-Auxois | 195 | 21434 | 212104343 | 21210 |
| la Motte-Ternant | 150 | 21445 | 212104459 | 21210 |
| Nan-sous-Thil | 169 | 21449 | 212104491 | 21390 |
| Noidan | 87 | 21457 | 212104574 | 21390 |
| Normier | 64 | 21463 | 212104632 | 21390 |
| Pont-et-Massène | 182 | 21497 | 212104970 | 21140 |
| Posanges | 50 | 21498 | 212104988 | 21350 |
| Précy-sous-Thil | 716 | 21505 | 212105050 | 21390 |
| la Roche-en-Brenil | 909 | 21525 | 212105258 | 21530 |
| Roilly | 52 | 21529 | 212105290 | 21390 |
| Rouvray | 503 | 21531 | 212105316 | 21530 |
| Saffres | 120 | 21537 | 212105373 | 21350 |
| Saint-Andeux | 118 | 21538 | 212105381 | 21530 |
| Saint-Didier | 199 | 21546 | 212105464 | 21210 |
| Saint-Euphrône | 223 | 21547 | 212105472 | 21140 |
| Saint-Germain-de-Modéon | 174 | 21548 | 212105480 | 21530 |
| Saint-Hélier | 36 | 21552 | 212105522 | 21690 |
| Saint-Mesmin | 111 | 21563 | 212105639 | 21540 |
| Saint-Thibault | 155 | 21576 | 212105761 | 21350 |
| Sainte-Colombe | 52 | 21544 | 212105449 | 21350 |
| Saulieu | 2269 | 21584 | 212105845 | 21210 |
| Semur-en-Auxois (chef lieu) | 4027 | 21603 | 212106033 | 21140 |
| Sincey-lès-Rouvray | 103 | 21608 | 212106082 | 21530 |
| Souhey | 83 | 21612 | 212106124 | 21140 |
| Soussey-sur-Brionne | 158 | 21613 | 212106132 | 21350 |
| Thoisy-la-Berchère | 305 | 21629 | 212106298 | 21210 |
| Thorey-sous-Charny | 193 | 21633 | 212106330 | 21350 |
| Thoste | 101 | 21635 | 212106355 | 21460 |
| Torcy-et-Pouligny | 207 | 21640 | 212106405 | 21460 |
| Toutry | 408 | 21642 | 212106421 | 21460 |
| Uncey-le-Franc | 49 | 21649 | 212106496 | 21350 |
| le Val-Larrey | 272 | 21272 | 200085413 | 21140 |
| Velogny | 33 | 21662 | 212106629 | 21350 |
| Vesvres | 29 | 21672 | 212106728 | 21350 |
| Vic-de-Chassenay | 209 | 21676 | 212106769 | 21140 |
| Vic-sous-Thil | 186 | 21678 | 212106785 | 21390 |
| Vieux-Château | 100 | 21681 | 212106819 | 21460 |
| Villargoix | 144 | 21687 | 212106876 | 21210 |
| Villars-et-Villenotte | 168 | 21689 | 212106892 | 21140 |
| Villeberny | 99 | 21690 | 212106900 | 21350 |
| Villeferry | 23 | 21694 | 212106942 | 21350 |
| Villeneuve-sous-Charigny | 87 | 21696 | 212106967 | 21140 |
| Villy-en-Auxois | 227 | 21707 | 212107072 | 21350 |
| Vitteaux | 1056 | 21710 | 212107106 | 21350 |
Le canton de Semur-en-Auxois est composé de 88 communes entières pour une population de 20829 habitants.