| Name | Status | Population census 1975-02-20 | Population census 1982-03-04 | Population census 1990-03-05 | Population census 1999-03-08 | Population estimate 2006-01-01 | Population estimate 2010-01-01 | |
|---|---|---|---|---|---|---|---|---|
| Palaiseau | Arrondissement | 455,884 | 477,383 | 512,460 | 537,655 | 564,638 | 572,082 | o |
| Essonne | Department | 923,063 | 988,000 | 1,084,824 | 1,134,238 | 1,198,273 | 1,215,340 |
| Name | Status | Population census 1975-02-20 | Population census 1982-03-04 | Population census 1990-03-05 | Population census 1999-03-08 | Population estimate 2006-01-01 | Population estimate 2010-01-01 | |
|---|---|---|---|---|---|---|---|---|
| Arpajon | Commune | 8,105 | 7,999 | 8,713 | 9,053 | 9,668 | 10,574 | o |
| Athis-Mons | Commune | 30,735 | 28,494 | 29,121 | 29,427 | 30,615 | 30,393 | o |
| Avrainville | Commune | 359 | 418 | 556 | 652 | 676 | 737 | o |
| Ballainvilliers | Commune | 1,589 | 2,218 | 2,531 | 2,749 | 3,589 | 3,795 | o |
| Bièvres | Commune | 4,133 | 3,844 | 4,209 | 4,034 | 4,990 | 4,643 | o |
| Boullay-les-Troux | Commune | 339 | 416 | 509 | 581 | 635 | 649 | o |
| Brétigny-sur-Orge | Commune | 19,572 | 18,662 | 19,671 | 21,650 | 22,753 | 23,334 | o |
| Briis-sous-Forges | Commune | 1,547 | 1,850 | 2,220 | 3,211 | 3,342 | 3,364 | o |
| Bruyères-le-Châtel | Commune | 2,103 | 2,199 | 2,536 | 3,013 | 3,097 | 3,187 | o |
| Bures-sur-Yvette | Commune | 6,870 | 7,764 | 9,227 | 9,679 | 9,713 | 9,535 | o |
| Champlan | Commune | 2,421 | 2,446 | 2,491 | 2,458 | 2,439 | 2,525 | o |
| Cheptainville | Commune | 1,015 | 1,165 | 1,361 | 1,462 | 1,778 | 1,905 | o |
| Chilly-Mazarin | Commune | 16,236 | 17,271 | 16,939 | 17,737 | 18,639 | 18,484 | o |
| Courson-Monteloup | Commune | 209 | 302 | 461 | 586 | 583 | 595 | o |
| Égly | Commune | 4,420 | 4,759 | 4,774 | 5,321 | 5,212 | 5,323 | o |
| Épinay-sur-Orge | Commune | 9,366 | 8,745 | 9,688 | 9,399 | 10,118 | 10,104 | o |
| Fontenay-lès-Briis | Commune | 1,168 | 1,204 | 1,567 | 1,707 | 1,713 | 1,882 | o |
| Forges-les-Bains | Commune | 1,374 | 2,017 | 2,757 | 3,229 | 3,651 | 3,723 | o |
| Gif-sur-Yvette | Commune | 12,945 | 17,166 | 19,754 | 21,364 | 21,816 | 20,654 | o |
| Gometz-la-Ville | Commune | 608 | 809 | 887 | 986 | 1,030 | 1,374 | o |
| Gometz-le-Châtel | Commune | 1,342 | 1,407 | 1,763 | 1,847 | 2,060 | 2,588 | o |
| Guibeville | Commune | 104 | 121 | 217 | 654 | 741 | 719 | o |
| Igny | Commune | 9,102 | 9,235 | 9,428 | 9,381 | 10,184 | 10,336 | o |
| Janvry | Commune | 459 | 432 | 487 | 530 | 626 | 584 | o |
| Juvisy-sur-Orge | Commune | 13,671 | 12,305 | 11,818 | 11,937 | 13,954 | 14,634 | o |
| La Norville | Commune | 2,035 | 2,318 | 3,822 | 3,944 | 3,960 | 4,075 | o |
| La Ville-du-Bois | Commune | 3,334 | 4,067 | 5,404 | 5,901 | 6,825 | 7,138 | o |
| Le Plessis-Pâté | Commune | 1,249 | 2,719 | 2,798 | 2,926 | 3,886 | 4,036 | o |
| Les Molières | Commune | 983 | 1,125 | 1,559 | 1,654 | 1,804 | 1,961 | o |
| Les Ulis | Commune | 20,316 | 28,256 | 27,197 | 25,785 | 24,962 | 24,792 | o |
| Leudeville | Commune | 701 | 803 | 966 | 1,187 | 1,281 | 1,374 | o |
| Leuville-sur-Orge | Commune | 1,934 | 1,969 | 2,463 | 3,761 | 4,147 | 4,099 | o |
| Limours | Commune | 4,201 | 4,774 | 6,324 | 6,465 | 6,283 | 6,459 | o |
| Linas | Commune | 2,830 | 4,042 | 4,767 | 4,970 | 6,249 | 6,479 | o |
| Longjumeau | Commune | 18,170 | 18,370 | 19,864 | 19,957 | 21,048 | 21,361 | o |
| Longpont-sur-Orge | Commune | 3,220 | 4,120 | 4,807 | 5,843 | 6,580 | 6,561 | o |
| Marcoussis | Commune | 3,980 | 4,465 | 5,680 | 7,226 | 7,647 | 7,909 | o |
| Marolles-en-Hurepoix | Commune | 2,711 | 3,549 | 4,126 | 4,669 | 4,731 | 4,812 | o |
| Massy | Commune | 41,344 | 40,135 | 38,574 | 37,712 | 40,183 | 42,258 | o |
| Montlhéry | Commune | 3,714 | 4,359 | 5,195 | 5,676 | 6,374 | 6,840 | o |
| Morangis | Commune | 8,492 | 9,416 | 10,043 | 10,611 | 11,481 | 12,136 | o |
| Nozay | Commune | 1,820 | 2,653 | 2,636 | 4,275 | 4,705 | 4,731 | o |
| Ollainville | Commune | 1,876 | 2,603 | 3,555 | 3,896 | 4,570 | 4,550 | o |
| Orsay | Commune | 13,530 | 14,057 | 14,849 | 16,236 | 16,597 | 15,966 | o |
| Palaiseau | Commune | 28,716 | 28,369 | 28,395 | 28,965 | 30,339 | 30,285 | o |
| Paray-Vieille-Poste | Commune | 7,670 | 7,122 | 7,214 | 7,188 | 7,198 | 7,111 | o |
| Pecqueuse | Commune | 279 | 329 | 474 | 587 | 580 | 623 | o |
| Saclay | Commune | 2,037 | 1,865 | 2,894 | 2,883 | 3,003 | 3,241 | o |
| Saint-Aubin | Commune | 153 | 448 | 736 | 694 | 648 | 690 | o |
| Sainte-Geneviève-des-Bois | Commune | 31,859 | 30,439 | 31,286 | 32,125 | 34,024 | 34,195 | o |
| Saint-Germain-lès-Arpajon | Commune | 5,949 | 6,217 | 7,607 | 8,227 | 9,108 | 9,338 | o |
| Saint-Jean-de-Beauregard | Commune | 224 | 237 | 265 | 283 | 275 | 278 | o |
| Saint-Michel-sur-Orge | Commune | 20,727 | 20,044 | 20,771 | 20,375 | 20,041 | 20,046 | o |
| Saint-Vrain | Commune | 2,104 | 2,295 | 2,307 | 2,800 | 2,792 | 2,813 | o |
| Saulx-les-Chartreux | Commune | 2,437 | 3,247 | 4,141 | 4,952 | 4,862 | 5,048 | o |
| Savigny-sur-Orge | Commune | 34,478 | 32,502 | 33,295 | 36,258 | 37,259 | 36,842 | o |
| Vaugrigneuse | Commune | 508 | 700 | 903 | 1,084 | 1,203 | 1,269 | o |
| Vauhallan | Commune | 1,856 | 1,775 | 1,795 | 2,058 | 2,010 | 1,985 | o |
| Verrières-le-Buisson | Commune | 11,400 | 13,555 | 15,710 | 15,923 | 15,848 | 15,418 | o |
| Villebon-sur-Yvette | Commune | 7,234 | 7,728 | 9,080 | 9,373 | 9,600 | 9,625 | o |
| Villejust | Commune | 889 | 917 | 1,324 | 1,655 | 2,059 | 2,247 | o |
| Villemoisson-sur-Orge | Commune | 4,050 | 4,104 | 6,404 | 6,878 | 6,878 | 6,950 | o |
| Villiers-le-Bâcle | Commune | 225 | 750 | 953 | 1,093 | 1,156 | 1,204 | o |
| Villiers-sur-Orge | Commune | 2,455 | 3,298 | 3,704 | 3,753 | 3,804 | 3,891 | o |
| Wissous | Commune | 4,402 | 4,394 | 4,888 | 5,160 | 5,016 | 5,805 | o |
Source: Institut National de la Statistique et des Études Économiques, France (web).
Communes in the boundaries of 2012-01-01.
Since 2006, France computes the population from the census results of different years.
2013-01-01WWW.CITYPOPULATION.DE