| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Acalquixohuayan Caxtillan | city | Port of Spain | Trinidad and Tobago | 10.65 | -61.52 | 0 | 64845 |
| Adelphi | city | Tobago | Trinidad and Tobago | 11.21 | -60.72 | 830 | 18818 |
| Adventure | city | Tobago | Trinidad and Tobago | 11.22 | -60.76 | 118 | 12847 |
| Agostini | city | Couva/Tabaquite/Talparo | Trinidad and Tobago | 10.48 | -61.40 | 830 | 57675 |
| Anse Fourmi | city | Tobago | Trinidad and Tobago | 11.31 | -60.61 | 830 | 6855 |
| Anse Noire | city | Sangre Grande | Trinidad and Tobago | 10.83 | -60.98 | 68 | 3086 |
| Arden | city | Tobago | Trinidad and Tobago | 11.27 | -60.58 | 141 | 15358 |
| Arima | city | Arima | Trinidad and Tobago | 10.64 | -61.28 | 223 | 86619 |
| Arnos Vale | city | Tobago | Trinidad and Tobago | 11.23 | -60.76 | 255 | 12830 |
| Arouca | city | Tunapuna/Piarco | Trinidad and Tobago | 10.63 | -61.33 | 108 | 99030 |
| Arouca Village | city | Tunapuna/Piarco | Trinidad and Tobago | 10.63 | -61.33 | 108 | 99030 |
| Arundel | city | Tunapuna/Piarco | Trinidad and Tobago | 10.70 | -61.37 | 830 | 85295 |
| Auchenskeoch | city | Tobago | Trinidad and Tobago | 11.17 | -60.78 | 36 | 12441 |
| Avocat | city | Siparia | Trinidad and Tobago | 10.20 | -61.53 | 36 | 36552 |