The canton Chalosse Tursan has 50 communes.
| Code | Name | Population ▼ |
|---|---|---|
| 40282 | Saint-Sever | 5 043 |
| 40119 | Hagetmau | 4 624 |
| 40286 | Samadet | 1 123 |
| 40122 | Haut-Mauco | 1 001 |
| 40110 | Geaune | 767 |
| 40128 | Horsarrieu | 717 |
| 40020 | Aurice | 633 |
| 40252 | Sainte-Colombe | 633 |
| 40253 | Saint-Cricq-Chalosse | 614 |
| 40195 | Montgaillard | 602 |
| 40191 | Montaut | 594 |
| 40086 | Coudures | 571 |
| 40196 | Montsoué | 566 |
| 40188 | Momuy | 487 |
| 40026 | Bas-Mauco | 421 |
| 40076 | Cauna | 418 |
| 40298 | Serres-Gaston | 405 |
| 40190 | Monségur | 395 |
| 40017 | Audignon | 386 |
| 40098 | Eyres-Moncube | 345 |
| 40185 | Miramont-Sensacq | 342 |
| 40029 | Bats | 328 |
| 40099 | Fargues | 314 |
| 40138 | Lacrabe | 287 |
| 40016 | Aubagnan | 277 |
| 40024 | Banos | 271 |
| 40172 | Mant | 268 |
| 40092 | Dumes | 265 |
| 40321 | Urgons | 244 |
| 40223 | Peyre | 241 |
| 40289 | Sarraziet | 235 |
| 40005 | Arboucave | 220 |
| 40232 | Poudenx | 219 |
| 40305 | Sorbets | 198 |
| 40299 | Serreslous-et-Arribans | 196 |
| 40226 | Pimbo | 195 |
| 40225 | Philondenx | 187 |
| 40072 | Castelnau-Tursan | 182 |
| 40130 | Labastide-Chalosse | 172 |
| 40198 | Morganx | 165 |
| 40136 | Lacajunte | 144 |
| 40079 | Cazalis | 136 |
| 40220 | Pécorade | 133 |
| 40073 | Castelner | 120 |
| 40083 | Clèdes | 115 |
| 40219 | Payros-Cazautets | 105 |
| 40239 | Puyol-Cazalet | 105 |
| 40174 | Mauries | 84 |
| 40189 | Monget | 77 |
| 40148 | Lauret | 76 |