At the time of the 2006 National Census, the village's population was 654 in 155 households, when it was in Buin Zahra County.[4] The following census in 2011 counted 527 people in 154 households.[5] The 2016 census measured the population of the village as 531 people in 182 households, by which time the district had been separated from the county in the establishment of Avaj County.[6] It was the most populous village in its rural district.[2]
^Aruchan can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3053718" in the "Unique Feature Id" form, and clicking on "Search Database".