| INSEE code | Postal code | Commune |
|---|
| 91339 | 91310 | Linas |
| 91340 | 91090 | Lisses (CAE) |
| 91345 | 91160 | Longjumeau |
| 91347 | 91310 | Longpont-sur-Orge |
| 91359 | 91720 | Maisse |
| 91363 | 91460 | Marcoussis |
| 91374 | 91150 | Marolles-en-Beauce |
| 91376 | 91630 | Marolles-en-Hurepoix |
| 91377 | 91300 | Massy |
| 91378 | 91730 | Mauchamps |
| 91386 | 91540 | Mennecy |
| 91390 | 91660 | Méréville |
| 91393 | 91780 | Mérobert |
| 91399 | 91150 | Mespuits |
| 91405 | 91490 | Milly-la-Forêt |
| 91408 | 91490 | Moigny-sur-École |
| 91411 | 91470 | Les Molières |
| 91412 | 91590 | Mondeville |
| 91414 | 91930 | Monnerville |
| 91421 | 91230 | Montgeron (CAD) |
| 91425 | 91310 | Montlhéry |
| 91432 | 91420 | Morangis |
| 91433 | 91150 | Morigny-Champigny |
| 91434 | 91390 | Morsang-sur-Orge (CAO) |
| 91435 | 91250 | Morsang-sur-Seine (SANS) |
| 91441 | 91750 | Nainville-les-Roches |
| 91457 | 91290 | La Norville |
| 91458 | 91620 | Nozay |
| 91461 | 91340 | Ollainville |
| 91463 | 91490 | Oncy-sur-École |
| 91468 | 91540 | Ormoy |
| 91469 | 91150 | Ormoy-la-Rivière |
| 91471 | 91400 | Orsay (CAS) |
| 91473 | 91590 | Orveau |
| 91477 | 91120 | Palaiseau (CAS) |
| 91479 | 91550 | Paray-Vieille-Poste |
| 91482 | 91470 | Pecqueuse |
| 91494 | 91220 | Le Plessis-Pâté (CAO) |
| 91495 | 91410 | Plessis-Saint-Benoist |
| 91507 | 91720 | Prunay-sur-Essonne |
| 91508 | 91150 | Puiselet-le-Marais |
| 91511 | 91740 | Pussay |
| 91514 | 91480 | Quincy-sous-Sénart (CAY) |
| 91519 | 91410 | Richarville |
| 91521 | 91130 | Ris-Orangis (CAE) |
| 91525 | 91410 | Roinville |
| 91526 | 91150 | Roinvilliers |
| 91533 | 91690 | Saclas |
| 91534 | 91400 | Saclay (CAS) |
| 91538 | 91190 | Saint-Aubin (CAS) |
| 91540 | 91530 | Saint-Chéron |
| 91544 | 91690 | Saint-Cyr-la-Rivière |
| 91546 | 91410 | Saint-Cyr-sous-Dourdan |
| 91549 | 91700 | Sainte-Geneviève-des-Bois (CAO) |
| 91547 | 91410 | Saint-Escobille |
| 91552 | 91180 | Saint-Germain-lès-Arpajon |
| 91553 | 91250 | Saint-Germain-lès-Corbeil (CAC) |
| 91556 | 91780 | Saint-Hilaire |
| 91560 | 91940 | Saint-Jean-de-Beauregard |
| 91568 | 91530 | Saint-Maurice-Montcouronne |
| 91570 | 91240 | Saint-Michel-sur-Orge (CAO) |
| 91573 | 91280 | Saint-Pierre-du-Perray (SANS) |
| 91577 | 91250 | Saintry-sur-Seine (SANS) |
| 91578 | 91910 | Saint-Sulpice-de-Favières |
| 91579 | 91770 | Saint-Vrain |
| 91581 | 91650 | Saint-Yon |
| 91587 | 91160 | Saulx-les-Chartreux |
| 91589 | 91600 | Savigny-sur-Orge |
| 91593 | 91530 | Sermaise |
| 91599 | 91840 | Soisy-sur-École |
| 91600 | 91450 | Soisy-sur-Seine (CAC) |
| 91602 | 91580 | Souzy-la-Briche |
| 91617 | 91250 | Tigery (SANS) |
| 91619 | 91730 | Torfou |
| 91692 | 91940 | Les Ulis |
| 91629 | 91720 | Valpuiseaux |
| 91630 | 91530 | Le Val-Saint-Germain |
| 91631 | 91480 | Varennes-Jarcy |
| 91634 | 91640 | Vaugrigneuse |
| 91635 | 91430 | Vauhallan (CAS) |
| 91639 | 91820 | Vayres-sur-Essonne |
| 91645 | 91370 | Verrières-le-Buisson (CAA) |
| 91648 | 91810 | Vert-le-Grand |
| 91649 | 91710 | Vert-le-Petit |
| 91654 | 91890 | Videlles |
| 91657 | 91270 | Vigneux-sur-Seine (CAD) |
| 91659 | 91100 | Villabé |
| 91661 | 91140 | Villebon-sur-Yvette |
| 91662 | 91580 | Villeconin |
| 91665 | 91620 | La Ville-du-Bois |
| 91666 | 91140 | Villejust |
| 91667 | 91360 | Villemoisson-sur-Orge (CAO) |
| 91671 | 91580 | Villeneuve-sur-Auvers |
| 91679 | 91190 | Villiers-le-Bâcle (CAS) |
| 91685 | 91700 | Villiers-sur-Orge (CAO) |
| 91687 | 91170 | Viry-Châtillon (CAL) |
| 91689 | 91320 | Wissous (CAA) |
| 91691 | 91330 | Yerres (CAY) |
