| population | |
| Arblade-le-Haut | 300 |
| Ardizas | 210 |
| Avensac | 78 |
| Avezan | 104 |
| Ayzieu | 159 |
| Bajonnette | 103 |
| Bascous | 173 |
| Beaucaire | 267 |
| Beaumont | 140 |
| Beraut | 341 |
| Berrac | 99 |
| Betous | 94 |
| Bives | 130 |
| Blaziert | 136 |
| Bourrouillan | 154 |
| Bretagne-d'Armagnac | 433 |
| Brugnens | 258 |
| Cadeilhan | 134 |
| Campagne-d'Armagnac | 228 |
| Cassaigne | 220 |
| Castelnau d'Auzan Labarrere | 1256 |
| Castelnau-d'Arbieu | 235 |
| Castelnau-sur-l'Auvignon | 150 |
| Castera-Lectourois | 347 |
| Casteron | 51 |
| Castet-Arrouy | 184 |
| Castex-d'Armagnac | 112 |
| Catonvielle | 98 |
| Caupenne-d'Armagnac | 431 |
| Caussens | 623 |
| Cazaubon | 1648 |
| Cazeneuve | 140 |
| Ceran | 218 |
| Cezan | 222 |
| Cologne | 928 |
| Condom | 6554 |
| Courrensan | 406 |
| Cravenceres | 92 |
| Demu | 342 |
| Eauze | 3894 |
| Encausse | 422 |
| Espas | 122 |
| Estang | 639 |
| Estramiac | 139 |
| Flamarens | 144 |
| Fleurance | 6101 |
| Fources | 264 |
| Gaudonville | 111 |
| Gavarret-sur-Aulouste | 143 |
| Gazaupouy | 308 |
| Gimbrede | 294 |
| Gondrin | 1177 |
| Goutz | 197 |
| Homps | 104 |
| population | |
| L'Isle-Bouzon | 244 |
| La Romieu | 573 |
| La Sauvetat | 350 |
| Labrihe | 209 |
| Lagarde | 119 |
| Lagardere | 76 |
| Lagraulet-du-Gers | 543 |
| Lalanne | 141 |
| Lamothe-Goas | 77 |
| Lanne-Soubiran | 140 |
| Lannemaignan | 110 |
| Lannepax | 488 |
| Laree | 231 |
| Larressingle | 215 |
| Larroque-Engalin | 50 |
| Larroque-Saint-Sernin | 168 |
| Larroque-sur-l'Osse | 242 |
| Laujuzan | 274 |
| Lauraet | 254 |
| Le Houga | 1188 |
| Lectoure | 3663 |
| Lias-d'Armagnac | 197 |
| Ligardes | 218 |
| Loubedat | 110 |
| Luppe-Violles | 165 |
| Magnan | 243 |
| Magnas | 63 |
| Maignaut-Tauzia | 273 |
| Manciet | 804 |
| Mansempuy | 87 |
| Mansencome | 45 |
| Maravat | 44 |
| Marguestau | 74 |
| Marsolan | 465 |
| Mas-d'Auvignon | 173 |
| Mauleon-d'Armagnac | 278 |
| Maupas | 204 |
| Mauroux | 130 |
| Mauvezin | 2158 |
| Miradoux | 502 |
| Miramont-Latour | 162 |
| Monbrun | 384 |
| Monclar | 183 |
| Monfort | 490 |
| Monguilhem | 309 |
| Monlezun-d'Armagnac | 201 |
| Montestruc-sur-Gers | 709 |
| Montreal | 1171 |
| Mormes | 120 |
| Mouchan | 411 |
| Nogaro | 1997 |
| Noulens | 105 |
| Panjas | 396 |
| Pauilhac | 631 |
| population | |
| Perchede | 110 |
| Pergain-Taillac | 307 |
| Pessoulens | 142 |
| Peyrecave | 70 |
| Pis | 110 |
| Plieux | 125 |
| Pouy-Roquelaure | 123 |
| Prechac | 179 |
| Puysegur | 76 |
| Ramouzens | 162 |
| Reans | 286 |
| Rejaumont | 239 |
| Roquelaure-Saint-Aubin | 126 |
| Roquepine | 40 |
| Saint-Antoine | 204 |
| Saint-Antonin | 158 |
| Saint-Avit-Frandat | 99 |
| Saint-Bres | 78 |
| Saint-Clar | 1001 |
| Saint-Creac | 85 |
| Saint-Cricq | 294 |
| Saint-Georges | 180 |
| Saint-Germier | 213 |
| Saint-Griede | 141 |
| Saint-Leonard | 182 |
| Saint-Martin-d'Armagnac | 241 |
| Saint-Martin-de-Goyne | 129 |
| Saint-Mezard | 220 |
| Saint-Orens | 80 |
| Saint-Orens-Pouy-Petit | 180 |
| Saint-Puy | 596 |
| Sainte-Anne | 117 |
| Sainte-Christie-d'Armagnac | 383 |
| Sainte-Gemme | 119 |
| Sainte-Mere | 218 |
| Sainte-Radegonde | 183 |
| Salles-d'Armagnac | 127 |
| Sarrant | 368 |
| Seailles | 47 |
| Sempesserre | 299 |
| Serempuy | 34 |
| Sion | 106 |
| Sirac | 171 |
| Solomiac | 478 |
| Sorbets | 223 |
| Taybosc | 65 |
| Terraube | 378 |
| Thoux | 249 |
| Touget | 515 |
| Toujouse | 237 |
| Tournecoupe | 267 |
| Urdens | 288 |
| Urgosse | 242 |
| Valence-sur-Baise | 1133 |
 | Agen-La Garenne Airport | ~ 31.82 km |
| Toulouse-Blagnac Airport | ~ 84.03 km |
| Tarbes-Lourdes-Pyrénées Airport | ~ 89.06 km |
| Pau Pyrénées Airport | ~ 89.38 km |
| Aérodrome de Cahors-Lalbenque | ~ 98.12 km |
| Bergerac-Roumanière Airport | ~ 100.72 km |
| Bordeaux-Mérignac Airport | ~ 134.10 km |
| Albi-Le Séquestre Airport | ~ 137.22 km |
| Périgueux-Bassillac Airport | ~ 145.50 km |
