| City | Region | Country | Time Zone | Population | |
|---|---|---|---|---|---|
| Son La | Son La Province | Vietnam | Indochina Time | 19,054 | |
| Yen Chau | Son La Province | Vietnam | Indochina Time | -- | |
| Song Ma | Son La Province | Vietnam | Indochina Time | -- | |
| Muong Chien | Son La Province | Vietnam | Indochina Time | -- | |
| Phu Yen | Son La Province | Vietnam | Indochina Time | -- | |
| Moc Chau | Son La Province | Vietnam | Indochina Time | -- | |
| It Ong | Son La Province | Vietnam | Indochina Time | -- | |
| Thi Tran Thuan Chau | Son La Province | Vietnam | Indochina Time | -- | |
| Bac Yen | Son La Province | Vietnam | Indochina Time | -- | |
| Hat Lot | Son La Province | Vietnam | Indochina Time | -- |

