At the time of the 2006 National Census, Dehkahan's population was 1,103 in 235 households, when it was a village in Dehkahan Rural District of Aseminun District, Manujan County.[4] The following census in 2011 counted 4,505 people in 1,114 households,[5] by which time the rural district had been separated from the county to join the Central District.[6] The 2016 census measured the population of the village as 3,787 people in 1,105 households. It was the most populous village in its rural district.[2]
After the census, the village of Dehkahan was elevated to the status of a city.[7]
^Deh Kahan can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3060377" in the "Unique Feature Id" form, and clicking on "Search Database".