Ambalajia is a town and commune (Malagasy: kaominina) in Madagascar. It belongs to the district of Maevatanana, which is a part of Betsiboka Region. The population of the commune was estimated to be approximately 9,000 in 2001 commune census. Only primary schooling is available. The majority 94% of the population of the commune are farmers, while an additional 4% receives their livelihood from raising livestock. The most important crops are rice and peanuts; also cowpeas are an important agricultural product. Additionally fishing employs 2% of the population.