Châtelblanc
| Châtelblanc | |
|---|---|
| The town hall in Châtelblanc | |
| Location of Châtelblanc | |
| Coordinates: 46°40′25″N 6°07′00″E / 46.6736°N 6.1167°E | |
| Country | France | 
| Region | Bourgogne-Franche-Comté | 
| Department | Doubs | 
| Arrondissement | Pontarlier | 
| Canton | Frasne | 
| Intercommunality | Lacs et Montagnes du Haut-Doubs | 
| Government | |
| • Mayor (2024–2026) | Claude Tarby | 
| Area 1 | 20.79 km2 (8.03 sq mi) | 
| Population  (2022) | 110 | 
| • Density | 5.3/km2 (14/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code | 25131 /25240 | 
| Elevation | 901–1,271 m (2,956–4,170 ft) (avg. 1,000 m or 3,300 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Châtelblanc (French pronunciation: [ʃatɛlblɑ̃]) is a commune in the Doubs department in the Bourgogne-Franche-Comté region in eastern France.