| Code | Name | Region |
|---|---|---|
| COYMB | Yumbo | |
| COZBR | Zambrano | MAG |
| COAZT | Zapatoca | SAN |
| COZQA | Zipaquira | CUN |
| COTUN | Tunja | BOY |
| COTBC | Turbaco | BOL |
| COTRB | Turbo | ANT |
| COUMB | Umbita | |
| COUNC | Unguia | CHO |
| COURI | Uribe | MET |
| COURR | Urrao | ANT |
| COUQN | Usaquen | CUN |
| COVDJ | Valencia De Jesus | CES |
| COVUP | Valledupar | |
| COVEL | Velez | SAN |
| COVLR | Villa Rica | CAU |
| COSDU | Villa San Diego De Ubate | CUN |
| COVGZ | Villagarzon | PUT |
| COGVL | Villanueva | LAG |
| COVPZ | Villapinzon | |
| COVVC | Villavicencio | MET |
| COAYG | Yaguara | HUI |
| COAYI | Yai (yarinacocha) | NAR |
| COVAB | Yavarate | VAU |
| COSUC | Sucre | SUC |
| COSTM | Sutamarchan | BOY |
| COTTM | Tablon De Tamara | |
| COTAL | Tamalameque | CES |
| COTAM | Tame | |
| COTME | Tame | ARA |
| COTCD | Tarapeca | CAL |
| COTAU | Tauramena | CAS |
| COTEN | Tenerife | MAG |
| COTEO | Tenjo | CUN |
| COTIB | Tibu | NSA |
| COTIE | Tierralta | COR |
| COTBD | Timbiqui | CAU |
| COTOP | Tocancipa | CUN |
| COTLU | Tolu | SUC |
| COTOV | Toluviejo | SUC |
| COTQS | Tres Esquinas | |
| COTDA | Trinidad | |
| COULQ | Tulua | VAC |
| COTCO | Tumaco | |
| COSAR | Santa Rosa | |
| COSSL | Santa Rosalia | CAS |
| COSRO | Santana Ramos | CAQ |
| COSDQ | Santander De Quilichao | CAU |
| COSTT | Santiago De Tolu | SUC |
| COSRV | Saravena |