Language and religion The people of Orost speak
Mazandarani and Persian and are
Shia Muslim.
Population At the 1966 census, Orost was in Surtchi Rural District, with a population of 490 people in 90 households. The facilities of the village at that time consisted of a mosque, a shop and a cafe. Orost's land usage was of natural pasture and of barren land. The following census in 2011 counted 555 people in 174 households. The 2016 census measured the population of the village as 709 people in 236 households, the most populous in its rural district. == Notable people ==