Astuce :
| nom commune | pop. | code insee | code siren | code postal |
|---|---|---|---|---|
| Ailleville | 227 | 10002 | 211000013 | 10200 |
| Arconville | 105 | 10007 | 211000062 | 10200 |
| Arrentières | 198 | 10011 | 211000104 | 10200 |
| Arsonval | 295 | 10012 | 211000112 | 10200 |
| Bar-sur-Aube (chef lieu) | 4753 | 10033 | 211000310 | 10200 |
| Baroville | 285 | 10032 | 211000302 | 10200 |
| Bayel | 743 | 10035 | 211000336 | 10310 |
| Bergères | 112 | 10039 | 211000351 | 10200 |
| Bligny | 161 | 10048 | 211000435 | 10200 |
| la Chaise | 33 | 10072 | 211000674 | 10500 |
| Champignol-lez-Mondeville | 258 | 10076 | 211000716 | 10200 |
| Chaumesnil | 106 | 10093 | 211000872 | 10500 |
| Colombé-la-Fosse | 172 | 10102 | 211000963 | 10200 |
| Colombé-le-Sec | 154 | 10103 | 211000971 | 10200 |
| Couvignon | 198 | 10113 | 211001078 | 10200 |
| Crespy-le-Neuf | 136 | 10117 | 211001110 | 10500 |
| Éclance | 92 | 10135 | 211001292 | 10200 |
| Engente | 31 | 10137 | 211001318 | 10200 |
| Épothémont | 156 | 10139 | 211001334 | 10500 |
| Fontaine | 248 | 10150 | 211001441 | 10200 |
| Fravaux | 36 | 10160 | 211001532 | 10200 |
| Fresnay | 50 | 10161 | 211001540 | 10200 |
| Fuligny | 41 | 10163 | 211001565 | 10200 |
| Jaucourt | 149 | 10176 | 211001698 | 10200 |
| Juvancourt | 113 | 10182 | 211001755 | 10310 |
| Juzanvigny | 126 | 10184 | 211001771 | 10500 |
| Lévigny | 92 | 10194 | 211001870 | 10200 |
| Lignol-le-Château | 166 | 10197 | 211001904 | 10200 |
| Longchamp-sur-Aujon | 367 | 10203 | 211001961 | 10310 |
| Maisons-lès-Soulaines | 70 | 10219 | 211002126 | 10200 |
| Meurville | 155 | 10242 | 211002357 | 10200 |
| Montier-en-l'Isle | 220 | 10250 | 211002423 | 10200 |
| Morvilliers | 272 | 10258 | 211002506 | 10500 |
| Petit-Mesnil | 202 | 10286 | 211002787 | 10500 |
| Proverville | 230 | 10306 | 211002977 | 10200 |
| la Rothière | 118 | 10327 | 211003165 | 10500 |
| Rouvres-les-Vignes | 113 | 10330 | 211003199 | 10200 |
| Saulcy | 63 | 10366 | 211003553 | 10200 |
| Soulaines-Dhuys | 419 | 10372 | 211003611 | 10200 |
| Spoy | 149 | 10374 | 211003637 | 10200 |
| Thil | 109 | 10377 | 211003660 | 10200 |
| Thors | 67 | 10378 | 211003678 | 10200 |
| Urville | 117 | 10390 | 211003777 | 10200 |
| Vernonvilliers | 54 | 10403 | 211003900 | 10200 |
| la Ville-aux-Bois | 28 | 10411 | 211003975 | 10500 |
| Ville-sous-la-Ferté | 905 | 10426 | 211003983 | 10310 |
| Ville-sur-Terre | 99 | 10428 | 211004007 | 10200 |
| Voigny | 142 | 10440 | 211004254 | 10200 |
Le canton de Bar-sur-Aube est composé de 48 communes pour une population de 13135 habitants.