| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Tres Aguadas | city | Campeche | Mexico | 18.39 | -90.51 | 278 | 1043 |
| Tres Aguadas | city | Campeche | Mexico | 19.71 | -89.77 | 246 | 298 |
| Tres Aguas | city | Veracruz | Mexico | 21.46 | -97.67 | 127 | 3845 |
| Tres Aguas | city | Veracruz | Mexico | 19.12 | -97.05 | 5160 | 26813 |
| Tres Alamos | city | Chihuahua | Mexico | 30.19 | -107.38 | 4435 | 298 |
| Tres Alamos | city | Chihuahua | Mexico | 30.82 | -108.30 | 4589 | 149 |
| Tres Alamos | city | Chihuahua | Mexico | 30.48 | -107.93 | 5029 | 2423 |
| Tres Alamos | city | Sonora | Mexico | 29.84 | -110.23 | 1971 | 955 |
| Tres Alamos | city | Sonora | Mexico | 29.84 | -110.58 | 1955 | 149 |
| Tres Alamos | city | Chihuahua | Mexico | 30.02 | -106.97 | 5029 | 298 |
| Tres Alamos | city | Sonora | Mexico | 29.63 | -109.22 | 3349 | 0 |
| Tres Alamos | city | Chihuahua | Mexico | 27.79 | -106.23 | 5029 | 149 |
| Tres Americas | city | Campeche | Mexico | 19.74 | -90.11 | 282 | 2064 |
| Tres Amigos | city | Chihuahua | Mexico | 28.92 | -106.30 | 5341 | 3874 |
| Tres Amigos | city | Sonora | Mexico | 30.17 | -108.84 | 5869 | 0 |
| Tres Amigos | city | Jalisco | Mexico | 20.18 | -104.09 | 4189 | 5580 |
| Tres Amores | city | Chiapas | Mexico | 16.28 | -92.33 | 4189 | 3586 |
| Tres Arbolitos | city | Chiapas | Mexico | 15.94 | -91.99 | 2608 | 5215 |
| Tres Arbolitos | city | Chiapas | Mexico | 15.95 | -92.00 | 2598 | 5215 |
| Tres Arroyos | city | Sonora | Mexico | 27.75 | -109.04 | 1870 | 149 |
| Tres Arroyos | city | Chihuahua | Mexico | 28.53 | -108.42 | 5869 | 298 |
| Tres Arroyos | city | Guerrero | Mexico | 17.81 | -101.23 | 1669 | 1779 |
| Tres Arroyos | city | Oaxaca | Mexico | 16.80 | -98.02 | 971 | 3851 |
| Tres Arroyos | city | Chihuahua | Mexico | 28.39 | -108.17 | 7549 | 299 |
| Tres Arroyos | city | Sonora | Mexico | 28.32 | -108.88 | 6062 | 298 |
| Tres Arroyos | city | Chihuahua | Mexico | 29.00 | -107.72 | 7132 | 299 |
| Tres Arroyos | city | Chihuahua | Mexico | 28.90 | -108.02 | 7549 | 298 |
| Tres Arroyos | city | Veracruz | Mexico | 21.99 | -98.27 | 65 | 1397 |
| Tres Arroyos | city | Sonora | Mexico | 29.07 | -108.84 | 3359 | 149 |
| Tres Aztecas | city | Tamaulipas | Mexico | 22.77 | -99.03 | 239 | 19364 |