| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Saclas | city | France | 48.36 | 2.12 | 830 | 6700 | |
| Saclay | city | France | 48.73 | 2.17 | 830 | 105028 | |
| Sagy | city | France | 49.05 | 1.95 | 200 | 41295 | |
| Sailly | city | France | 49.04 | 1.80 | 383 | 16253 | |
| Saint Cyr | city | France | 48.57 | 2.04 | 311 | 11426 | |
| Saint Cyr-sous-Dourdan | city | France | 48.57 | 2.04 | 311 | 11426 | |
| Saint Germain en Laye | city | France | 48.90 | 2.09 | 259 | 138843 | |
| Saint-Arnoult | city | France | 48.57 | 1.94 | 380 | 12437 | |
| Saint-Arnoult-en-Yvelines | city | France | 48.57 | 1.94 | 380 | 12437 | |
| Saint-Aubin | city | France | 48.51 | 2.36 | 213 | 28364 | |
| Saint-Aubin | city | France | 48.71 | 2.14 | 830 | 75102 | |
| Saint-Benoît | city | France | 48.67 | 1.91 | 830 | 14157 | |
| Saint-Brice | city | France | 49.00 | 2.35 | 255 | 276426 | |
| Saint-Brice-sous-Foret | city | France | 49.00 | 2.35 | 255 | 276426 | |
| Saint-Chéron | city | France | 48.55 | 2.12 | 252 | 18014 | |
| Saint-Clair | city | France | 48.68 | 2.14 | 830 | 74774 | |
| Saint-Clair | city | France | 49.21 | 1.68 | 187 | 4562 | |
| Saint-Clair-sur-Epte | city | France | 49.21 | 1.68 | 187 | 4562 | |
| Saint-Cloud | city | France | 48.85 | 2.20 | 360 | 563972 | |
| Saint-Come | city | France | 48.77 | 1.64 | 403 | 8419 | |
| Saint-Corentin | city | France | 48.91 | 1.68 | 830 | 9150 | |
| Saint-Cyr | city | France | 48.36 | 2.15 | 830 | 4957 | |
| Saint-Cyr | city | France | 49.06 | 1.74 | 830 | 8583 | |
| Saint-Cyr | city | France | 48.57 | 2.04 | 311 | 11426 | |
| Saint-Cyr | city | France | 48.80 | 2.07 | 830 | 183102 | |
| Saint-Cyr-en-Arthies | city | France | 49.06 | 1.74 | 830 | 8583 | |
| Saint-Cyr-l'Ecole | city | France | 48.80 | 2.07 | 830 | 183102 | |
| Saint-Cyr-la-Riviere | city | France | 48.36 | 2.15 | 830 | 4957 | |
| Saint-Cyr-l’École | city | France | 48.80 | 2.07 | 830 | 183102 | |
| Saint-Cyr-sous-Dourdan | city | France | 48.57 | 2.04 | 311 | 11426 | |
| Saint-Denis | city | France | 48.93 | 2.35 | 114 | 826223 | |
| Saint-Escobille | city | France | 48.43 | 1.97 | 830 | 3170 | |
| Saint-Evroult | city | France | 48.55 | 2.12 | 341 | 16260 | |
| Saint-Fiacre | city | France | 48.49 | 2.21 | 390 | 15363 | |
| Saint-Forget | city | France | 48.70 | 2.00 | 830 | 23564 | |
| Saint-Georges | city | France | 48.40 | 2.50 | 242 | 6759 | |
| Saint-Germain | city | France | 48.60 | 2.26 | 269 | 82359 | |
| Saint-Germain | city | France | 48.62 | 2.49 | 278 | 119678 | |
| Saint-Germain | city | France | 48.83 | 1.90 | 383 | 37377 | |
| Saint-Germain | city | France | 48.90 | 2.09 | 259 | 138843 | |
| Saint-Germain-de-la-Grange | city | France | 48.83 | 1.90 | 383 | 37377 | |
| Saint-Germain-en-Laye | city | France | 48.90 | 2.09 | 259 | 138843 | |
| Saint-Germain-lès-Arpajon | city | France | 48.60 | 2.26 | 269 | 82359 | |
| Saint-Germain-lès-Corbeil | city | France | 48.62 | 2.49 | 278 | 119678 | |
| Saint-Gervais | city | France | 49.17 | 1.77 | 262 | 8017 | |
| Saint-Gratien | city | France | 48.97 | 2.29 | 131 | 432730 | |
| Saint-Hilaire | city | France | 48.43 | 2.08 | 334 | 8895 | |
| Saint-Hilaire | city | France | 48.84 | 1.72 | 400 | 8598 | |
| Saint-Hilarion | city | France | 48.62 | 1.73 | 830 | 7081 | |
| Saint-Illiers | city | France | 48.96 | 1.51 | 830 | 6287 | |
| Saint-Illiers | city | France | 48.98 | 1.54 | 830 | 7270 | |
| Saint-Illiers-la-Ville | city | France | 48.98 | 1.54 | 830 | 7270 | |
| Saint-Illiers-le-Bois | city | France | 48.96 | 1.51 | 830 | 6287 | |
| Saint-Jean | city | France | 48.66 | 2.17 | 830 | 81661 | |
| Saint-Jean-de-Beauregard | city | France | 48.66 | 2.17 | 830 | 81661 | |
| Saint-Lambert | city | France | 48.73 | 2.02 | 357 | 84788 | |
| Saint-Laurent | city | France | 48.88 | 1.59 | 403 | 5227 | |
| Saint-Leger | city | France | 48.72 | 1.77 | 830 | 2674 | |
| Saint-Leger-en Yveline | city | France | 48.72 | 1.77 | 830 | 2674 | |
| Saint-Leu | city | France | 49.02 | 2.25 | 259 | 205412 | |
| Saint-Leu-la-Foret | city | France | 49.02 | 2.25 | 259 | 205412 | |
| Saint-Léger-en-Yvelines | city | France | 48.72 | 1.77 | 830 | 2674 | |
| Saint-Léonard | city | France | 48.90 | 1.82 | 387 | 22773 | |
| Saint-Mande | city | France | 48.84 | 2.42 | 164 | 1274192 | |
| Saint-Martin | city | France | 48.51 | 1.93 | 830 | 9778 | |
| Saint-Martin | city | France | 48.88 | 1.72 | 830 | 7620 | |
| Saint-Martin | city | France | 49.11 | 2.35 | 830 | 26623 | |
| Saint-Martin | city | France | 49.04 | 1.69 | 351 | 55341 | |
| Saint-Martin-de-Bréthencourt | city | France | 48.51 | 1.93 | 830 | 9778 | |
| Saint-Martin-des-Champs | city | France | 48.88 | 1.72 | 830 | 7620 | |
| Saint-Martin-du-Tertre | city | France | 49.11 | 2.35 | 830 | 26623 | |
| Saint-Martin-la-Garenne | city | France | 49.04 | 1.69 | 351 | 55341 | |
| Saint-Maur | city | France | 48.79 | 2.49 | 114 | 458560 | |
| Saint-Maur-des-Fosses | city | France | 48.79 | 2.49 | 114 | 458560 | |
| Saint-Maur-les-Fossés | city | France | 48.79 | 2.49 | 114 | 458560 | |
| Saint-Maurice | city | France | 48.58 | 2.13 | 213 | 23550 | |
| Saint-Maurice | city | France | 48.82 | 2.43 | 200 | 926810 | |
| Saint-Maurice-Montcouronne | city | France | 48.58 | 2.13 | 213 | 23550 | |
| Saint-Merri | city | France | 48.86 | 2.35 | 114 | 1883584 | |
| Saint-Michel | city | France | 48.63 | 2.31 | 249 | 172463 | |
| Saint-Michel-sur-Orge | city | France | 48.63 | 2.31 | 249 | 172463 | |
| Saint-Nom-la-Bretêche | city | France | 48.86 | 2.02 | 400 | 78670 | |
| Saint-Ouen | city | France | 48.90 | 2.33 | 170 | 1315519 | |
| Saint-Ouen-l'Aumone | city | France | 49.04 | 2.12 | 164 | 140571 | |
| Saint-Ouen-l’Aumône | city | France | 49.04 | 2.12 | 164 | 140571 | |
| Saint-Ouen-sur-Seine | city | France | 48.90 | 2.33 | 170 | 1315519 | |
| Saint-Pierre | city | France | 48.61 | 2.49 | 295 | 101798 | |
| Saint-Pierre-du-Perray | city | France | 48.61 | 2.49 | 295 | 101798 | |
| Saint-Prix | city | France | 49.02 | 2.27 | 321 | 202872 | |
| Saint-Quentin-en-Yvelines | city | France | 48.77 | 2.00 | 830 | 157697 | |
| Saint-Remy | city | France | 48.76 | 1.88 | 830 | 34423 | |
| Saint-Remy | city | France | 48.71 | 2.08 | 255 | 48341 | |
| Saint-Remy-l'Honore | city | France | 48.76 | 1.88 | 830 | 34423 | |
| Saint-Remy-les-Chevreuse | city | France | 48.71 | 2.08 | 255 | 48341 | |
| Saint-Robert | city | France | 48.67 | 1.95 | 830 | 8156 | |
| Saint-Rémy-l’Honoré | city | France | 48.76 | 1.88 | 830 | 34423 | |
| Saint-Sulpice | city | France | 48.54 | 2.18 | 830 | 27660 | |
| Saint-Sulpice-de-Favieres | city | France | 48.54 | 2.18 | 830 | 27660 | |
| Saint-Val | city | France | 48.33 | 2.38 | 229 | 7108 | |
| Saint-Vrain | city | France | 48.54 | 2.33 | 183 | 34483 | |
| Saint-Witz | city | France | 49.09 | 2.57 | 830 | 17939 | |
| Saint-Yon | city | France | 48.56 | 2.19 | 318 | 30059 | |
| Sainte-Escobille | city | France | 48.43 | 1.97 | 830 | 3170 | |
| Sainte-Genevieve | city | France | 48.65 | 2.32 | 255 | 211634 | |
| Sainte-Genevieve-des-Bois | city | France | 48.65 | 2.32 | 255 | 211634 | |
| Sainte-Mesme | city | France | 48.53 | 1.96 | 377 | 14533 | |
| Saintry | city | France | 48.60 | 2.50 | 282 | 95739 | |
| Saintry-sur-Seine | city | France | 48.60 | 2.50 | 282 | 95739 | |
| Sanctus Clodoaldus | city | France | 48.85 | 2.20 | 360 | 563972 | |
| Sanctus Germanus in Laya | city | France | 48.90 | 2.09 | 259 | 138843 | |
| Sanctus Leodegarius in Acquilina | city | France | 48.72 | 1.77 | 830 | 2674 | |
| Sanctus Mandetus | city | France | 48.84 | 2.42 | 164 | 1274192 | |
| Sandrancourt | city | France | 49.04 | 1.65 | 95 | 30796 | |
| Sannois | city | France | 48.97 | 2.25 | 203 | 438632 | |
| Sant Manden | city | France | 48.84 | 2.42 | 164 | 1274192 | |
| Santeny | city | France | 48.73 | 2.57 | 262 | 88234 | |
| Santeuil | city | France | 49.13 | 1.95 | 269 | 9851 | |
| Sarcelles | city | France | 48.99 | 2.41 | 219 | 244966 | |
| Sarcelles-Lochère | city | France | 48.99 | 2.41 | 219 | 244966 | |
| Sartrouville | city | France | 48.95 | 2.19 | 157 | 399990 | |
| Saudreville | city | France | 48.50 | 2.13 | 830 | 11863 | |
| Saulx | city | France | 48.82 | 1.64 | 410 | 9840 | |
| Saulx | city | France | 48.69 | 2.27 | 242 | 167348 | |
| Saulx-Marchais | city | France | 48.84 | 1.84 | 383 | 16813 | |
| Saulx-Richebourg | city | France | 48.82 | 1.64 | 410 | 9840 | |
| Saulx-les-Chartreux | city | France | 48.69 | 2.27 | 242 | 167348 | |
| Sauvage | city | France | 48.58 | 1.74 | 830 | 7861 | |
| Savigny | city | France | 48.68 | 2.35 | 246 | 269117 | |
| Savigny-sur-Orge | city | France | 48.68 | 2.35 | 246 | 269117 | |
| Sceaux | city | France | 48.78 | 2.29 | 259 | 654284 | |
| Sen Klu | city | France | 48.85 | 2.20 | 360 | 563972 | |
| Sen-Deni | city | France | 48.93 | 2.35 | 114 | 826223 | |
| Senklū | city | France | 48.85 | 2.20 | 360 | 563972 | |
| Senlisse | city | France | 48.69 | 1.98 | 830 | 12785 | |
| Senneville | city | France | 48.94 | 1.75 | 328 | 43463 | |
| Septeuil | city | France | 48.89 | 1.68 | 393 | 8755 | |
| Seraincourt | city | France | 49.04 | 1.87 | 282 | 27678 | |
| Sermaise | city | France | 48.54 | 2.08 | 830 | 10067 | |
| Seugy | city | France | 49.12 | 2.39 | 236 | 24433 | |
| Sevr | city | France | 48.82 | 2.22 | 288 | 570614 | |
| Sevran | city | France | 48.94 | 2.53 | 180 | 323894 | |
| Soindres | city | France | 48.96 | 1.68 | 403 | 74038 | |
| Soisy | city | France | 48.48 | 2.49 | 170 | 11702 | |
| Soisy | city | France | 48.99 | 2.30 | 229 | 328531 | |
| Soisy | city | France | 48.65 | 2.45 | 252 | 185784 | |
| Soisy-sous-Montmorency | city | France | 48.99 | 2.30 | 229 | 328531 | |
| Soisy-sur-Seine | city | France | 48.65 | 2.45 | 252 | 185784 | |
| Soisy-sur-École | city | France | 48.48 | 2.49 | 170 | 11702 | |
| Sonchamp | city | France | 48.58 | 1.88 | 830 | 7002 | |
| Souzy | city | France | 48.53 | 2.15 | 830 | 19349 | |
| Souzy-la-Briche | city | France | 48.53 | 2.15 | 830 | 19349 | |
| Spinetum ad Urbiam | city | France | 48.67 | 2.31 | 187 | 227714 | |
| Stains | city | France | 48.95 | 2.38 | 114 | 529615 | |
| Stampae | city | France | 48.43 | 2.18 | 367 | 26864 | |
| Stry-sur-Seine | city | France | 48.60 | 2.50 | 282 | 95739 | |
| Sucy | city | France | 48.77 | 2.53 | 321 | 240856 | |
| Sucy-en-Brie | city | France | 48.77 | 2.53 | 321 | 240856 | |
| Suresnes | city | France | 48.87 | 2.23 | 101 | 833109 | |
| Surisna | city | France | 48.87 | 2.23 | 101 | 833109 | |
| Survilliers | city | France | 49.10 | 2.54 | 830 | 30087 | |
| Sèvres | city | France | 48.82 | 2.22 | 288 | 570614 |