| Guillos | |
|---|---|
|   Town hall | |
| Coordinates: 44°32′56″N0°30′05″W / 44.5489°N 0.5014°W | |
| Country | France | 
| Region | Nouvelle-Aquitaine | 
| Department | Gironde | 
| Arrondissement | Langon | 
| Canton | Les Landes des Graves | 
| Government | |
| • Mayor (2020–2026) | Mylène Doreau [1] | 
| Area 1 | 22.67 km2 (8.75 sq mi) | 
| Population  (2022) [2]  | 454 | 
| • Density | 20/km2 (52/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code |  33197 /33720 | 
| Elevation | 65–82 m (213–269 ft) (avg. 77 m or 253 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Guillos is a commune in the Gironde department in southwestern France.
| Year | Pop. | ±% | 
|---|---|---|
| 1962 | 250 | — | 
| 1968 | 253 | +1.2% | 
| 1975 | 225 | −11.1% | 
| 1982 | 266 | +18.2% | 
| 1990 | 372 | +39.8% | 
| 1999 | 356 | −4.3% | 
| 2008 | 398 | +11.8% |