Bais, Mayenne
| Bais | |
|---|---|
| The Château de Montesson, in Bais | |
| Location of Bais | |
| Coordinates: 48°15′15″N 0°21′51″W / 48.2542°N 0.3642°W | |
| Country | France | 
| Region | Pays de la Loire | 
| Department | Mayenne | 
| Arrondissement | Mayenne | 
| Canton | Évron | 
| Government | |
| • Mayor (2020–2026) | Marie-Cécile Morice | 
| Area 1 | 26.23 km2 (10.13 sq mi) | 
| Population  (2022) | 1,220 | 
| • Density | 47/km2 (120/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code | 53016 /53160 | 
| Elevation | 155–337 m (509–1,106 ft) (avg. 183 m or 600 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Bais is a commune in the Mayenne department in northwestern France.