| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Sadhoowa | city | County of Saint Patrick | Trinidad and Tobago | 10.1333333 | -61.4333333 | 134 | 52268 |
| Sagre Chiquita | city | County of Saint Andrew | Trinidad and Tobago | 10.5666667 | -61.1 | 118 | 18243 |
| Saint Andrew | city | County of Caroni | Trinidad and Tobago | 10.4166667 | -61.4666667 | 183 | 33642 |
| Saint Ann's | city | County of Saint George | Trinidad and Tobago | 10.6666667 | -61.5166667 | 216 | 105087 |
| Saint Annʼs | city | County of Saint George | Trinidad and Tobago | 10.6666667 | -61.5166667 | 216 | 105087 |
| Saint Augustine | city | County of Saint George | Trinidad and Tobago | 10.65 | -61.4 | 150 | 104134 |
| Saint Clair | city | Port-of-Spain | Trinidad and Tobago | 10.6666667 | -61.5166667 | 216 | 105087 |
| Saint Croix | city | County of Victoria | Trinidad and Tobago | 10.25 | -61.3666667 | 209 | 54311 |
| Saint Elizabeth | city | County of Saint George | Trinidad and Tobago | 10.6833333 | -61.5 | 731 | 135911 |
| Saint Helena | city | County of Caroni | Trinidad and Tobago | 10.5833333 | -61.3333333 | 95 | 52159 |
| Saint James | city | County of Saint George | Trinidad and Tobago | 10.6666667 | -61.5166667 | 216 | 105087 |
| Saint John | city | County of Victoria | Trinidad and Tobago | 10.2333333 | -61.4166667 | 98 | 90245 |
| Saint John Village | city | County of Victoria | Trinidad and Tobago | 10.2333333 | -61.4166667 | 98 | 90245 |
| Saint Joseph | city | County of Victoria | Trinidad and Tobago | 10.2833333 | -61.45 | 16 | 83300 |
| Saint Joseph | city | County of Saint George | Trinidad and Tobago | 10.65 | -61.4166667 | 101 | 114317 |
| Saint Joseph | city | County of Mayaro | Trinidad and Tobago | 10.3166667 | -60.9833333 | 0 | 2532 |
| Saint Joseph Village | city | County of Victoria | Trinidad and Tobago | 10.2833333 | -61.45 | 16 | 83300 |
| Saint Julien | city | County of Victoria | Trinidad and Tobago | 10.2666667 | -61.35 | 255 | 57465 |
| Saint Julien Village | city | County of Victoria | Trinidad and Tobago | 10.2666667 | -61.35 | 255 | 57465 |
| Saint Madeleine | city | County of Victoria | Trinidad and Tobago | 10.2666667 | -61.4333333 | 52 | 83300 |
| Saint Madeleine Village | city | County of Victoria | Trinidad and Tobago | 10.2666667 | -61.4333333 | 52 | 83300 |
| Saint Margaret | city | County of Victoria | Trinidad and Tobago | 10.3333333 | -61.45 | 29 | 65640 |
| Saint Margaret | city | County of Mayaro | Trinidad and Tobago | 10.25 | -61 | 0 | 2136 |
| Saint Margaret Village | city | County of Victoria | Trinidad and Tobago | 10.3333333 | -61.45 | 29 | 65640 |
| Saint Mary's | city | County of Saint Patrick | Trinidad and Tobago | 10.2166667 | -61.5333333 | 13 | 36009 |
| Saint Mary's Village | city | County of Saint Patrick | Trinidad and Tobago | 10.2166667 | -61.5333333 | 13 | 36009 |
| Saint Marys | city | County of Caroni | Trinidad and Tobago | 10.45 | -61.4166667 | 436 | 50398 |
| Saint Maryʼs | city | County of Saint Patrick | Trinidad and Tobago | 10.2166667 | -61.5333333 | 13 | 36009 |
| Saint Maryʼs Village | city | County of Saint Patrick | Trinidad and Tobago | 10.2166667 | -61.5333333 | 13 | 36009 |
| Saint Pierre | city | County of Saint George | Trinidad and Tobago | 10.6833333 | -61.6 | 0 | 63016 |
| Saint Pierre Village | city | County of Saint George | Trinidad and Tobago | 10.6833333 | -61.6 | 0 | 63016 |
| Saint Thomas | city | County of Caroni | Trinidad and Tobago | 10.5166667 | -61.4166667 | 226 | 56513 |
| Saint Thomas Village | city | County of Caroni | Trinidad and Tobago | 10.5166667 | -61.4166667 | 226 | 56513 |
| Sainte Croix | city | County of Victoria | Trinidad and Tobago | 10.25 | -61.3666667 | 209 | 54311 |
| Sainte Croix Village | city | County of Victoria | Trinidad and Tobago | 10.25 | -61.3666667 | 209 | 54311 |
| Sainte Madeleine | city | County of Victoria | Trinidad and Tobago | 10.2666667 | -61.4333333 | 52 | 83300 |
| Sainte Madeleine Village | city | County of Victoria | Trinidad and Tobago | 10.2666667 | -61.4333333 | 52 | 83300 |
| Salibea | city | County of Saint Andrew | Trinidad and Tobago | 10.7 | -61.0333333 | 0 | 2255 |
| Salibia Village | city | County of Saint Andrew | Trinidad and Tobago | 10.7 | -61.0333333 | 0 | 2255 |
| Salybia | city | County of Saint Andrew | Trinidad and Tobago | 10.7 | -61.0333333 | 0 | 2255 |
| San Fernando | city | San Fernando | Trinidad and Tobago | 10.2833333 | -61.4666667 | 3 | 50509 |
| San Francique | city | County of Saint Patrick | Trinidad and Tobago | 10.0666667 | -61.6666667 | 26 | 7980 |
| San Francisco Settlement | city | County of Caroni | Trinidad and Tobago | 10.4333333 | -61.4 | 426 | 49092 |
| San Juan | city | County of Saint George | Trinidad and Tobago | 10.65 | -61.45 | 137 | 114317 |
| San Rafael | city | County of Saint George | Trinidad and Tobago | 10.5666667 | -61.2666667 | 206 | 36761 |
| San Rafael Village | city | County of Saint George | Trinidad and Tobago | 10.5666667 | -61.2666667 | 206 | 36761 |
| Sangre Chiquita | city | County of Saint Andrew | Trinidad and Tobago | 10.5666667 | -61.1 | 118 | 18243 |
| Sangre Grand | city | County of Saint Andrew | Trinidad and Tobago | 10.5833333 | -61.1166667 | 95 | 18243 |
| Sangre Grande | city | County of Saint Andrew | Trinidad and Tobago | 10.5666667 | -61.1333333 | 147 | 17456 |
| Sangre Grande | city | County of Saint Andrew | Trinidad and Tobago | 10.5833333 | -61.1166667 | 95 | 18243 |
| Sangre Grande Oropuche | city | County of Saint Andrew | Trinidad and Tobago | 10.5833333 | -61.0666667 | 49 | 17585 |
| Sangre Grande Station | city | County of Saint Andrew | Trinidad and Tobago | 10.5833333 | -61.1166667 | 95 | 18243 |
| Sangre Grande Town | city | County of Saint Andrew | Trinidad and Tobago | 10.5833333 | -61.1166667 | 95 | 18243 |
| Sans Souci | city | County of Saint David | Trinidad and Tobago | 10.8333333 | -61 | 85 | 4116 |
| Santa Cruz | city | County of Saint George | Trinidad and Tobago | 10.7166667 | -61.4666667 | 593 | 109659 |
| Scarborough | city | Ward of Tobago | Trinidad and Tobago | 11.1833333 | -60.7333333 | 291 | 14611 |
| Shirvan | city | Ward of Tobago | Trinidad and Tobago | 11.15 | -60.8 | 16 | 6749 |
| Shore Park | city | Ward of Tobago | Trinidad and Tobago | 11.25 | -60.5333333 | 0 | 3776 |
| Sierra Leone | city | County of Saint George | Trinidad and Tobago | 10.7 | -61.55 | 400 | 78710 |
| Siparia | city | County of Saint Patrick | Trinidad and Tobago | 10.1333333 | -61.5 | 127 | 49394 |
| Siparia Village | city | County of Saint Patrick | Trinidad and Tobago | 10.1333333 | -61.5 | 127 | 49394 |
| Sixth Company | city | County of Victoria | Trinidad and Tobago | 10.25 | -61.35 | 246 | 54311 |
| Sixth Company Village | city | County of Victoria | Trinidad and Tobago | 10.25 | -61.35 | 246 | 54311 |
| South Oropouche | city | County of Saint Patrick | Trinidad and Tobago | 10.2166667 | -61.55 | 26 | 22373 |
| Speyside | city | Ward of Tobago | Trinidad and Tobago | 11.3 | -60.5333333 | 3 | 7584 |
| Speyside Village | city | Ward of Tobago | Trinidad and Tobago | 11.3 | -60.5333333 | 3 | 7584 |
| Spring | city | County of Caroni | Trinidad and Tobago | 10.4166667 | -61.4166667 | 223 | 50398 |
| Spring Vale | city | County of Caroni | Trinidad and Tobago | 10.3833333 | -61.45 | 124 | 52515 |
| Spring Village | city | County of Caroni | Trinidad and Tobago | 10.4166667 | -61.4166667 | 223 | 50398 |
| Starwood | city | Ward of Tobago | Trinidad and Tobago | 11.3166667 | -60.5333333 | 108 | 7584 |
| Studley Park | city | Ward of Tobago | Trinidad and Tobago | 11.1833333 | -60.6666667 | 0 | 13332 |
| Success | city | County of Saint George | Trinidad and Tobago | 10.65 | -61.4833333 | 91 | 99230 |
| Sum Sum Hill | city | County of Victoria | Trinidad and Tobago | 10.3666667 | -61.4333333 | 131 | 57701 |
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