Administrative Information of Chieng Coi ward (Post-2025 Merger)
- Merged from: Chieng Coi ward, Hua La commune, Chieng Co commune
- Total area: 93.56 km²
- Population: 22,694 people
- Population density: 242.56 people per km²
- Administrative headquarters (new): Số 55, đường Hoàng Quốc Việt, phường Chiềng Cơi, tỉnh Sơn La.
Map of Son La province After the 2025 Administrative Merger
The map below provides an updated view of Son La province and its new administrative boundaries after the 2025 national merger, helping users easily identify the location of Chieng Coi ward and nearby wards/communes.

Official map of Son La province after the 2025 administrative restructuring (Source: Ministry of Agriculture and Environment – Vietnam Resources and Mapping Publishing House).