At the time of the 2006 National Census, the village's population was 1,108 in 197 households, when it was in Harm Rural District of the former Juyom District of Larestan County.[5] The following census in 2011 counted 1,209 people in 301 households.[6] The 2016 census measured the population of the village as 1,630 people in 394 households.[2]
After the census, the district was separated from the county in the establishment of Juyom County. The rural district was transferred to the new Harm District, and Chaghan was transferred to Chaghan Rural District created in the new Central District.[4]
^Chaghan can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3058770" in the "Unique Feature Id" form, and clicking on "Search Database".