At the time of the 2006 National Census, the village's population was 2,062 in 543 households, when it was in the Central District.[5] The following census in 2011 counted 4,055 people in 1,152 households,[6] by which time the rural district had been separated from the district in the establishment of Baravat District.[7] The 2016 census measured the population of the village as 4,353 people in 1,200 households.[2]
^Posht Rud can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3078577" in the "Unique Feature Id" form, and clicking on "Search Database".