|• Mayor||Davidson Radoka|
|• Total||1,773,16 km2 (68,462 sq mi)|
|Elevation||1,034 m (3,392 ft)|
|Time zone||EAT (UTC3)|
Didy is a town and commune (Malagasy: kaominina) in Madagascar. It belongs to the district of Ambatondrazaka, which is a part of Alaotra-Mangoro Region. The population of the commune was estimated to be approximately 15,000 in 2001 commune census.
Only primary schooling is available. The majority 85% of the population of the commune are farmers, while an additional 14% receives their livelihood from raising livestock. The most important crop is rice, while other important products are maize, cassava and tomato. Services provide employment for 1% of the population.
In the beginning of 2012, a sapphire and ruby rush occurred 25 kilometers south-east of Didy. The rush was due to the exceptional color, clarity and size of the precious stones found there.
Discovered in alluvium, in the core of a wild forest located in the Ankeniheny-Zahamena national park, sapphires and rubies required holes from 50 centimeters to 2 meters depth to be extracted.
Following the arrival of 40,000 people on the occurrence, the government ordained to evacuate the area in June 2012 and the access was denied.