At the time of the 2006 National Census, Dizaj Hoseyn Beyg's population was 3,764 in 963 households, when it was a village in Koshksaray Rural District of the Central District.[4] The following census in 2011 counted 3,916 people in 1,153 households.[5] The 2016 census measured the population of the village as 4,060 people in 1,273 households. It was the most populous village in its rural district.[2]
In 2019, the rural district and the city of Koshksaray were separated from the district in the formation of Koshksaray District.[6] In addition, the village of Dizaj Hoseyn Beyg was elevated to the status of a city.[7]
^Dizaj Hoseyn Beyg can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3061270" in the "Unique Feature Id" form, and clicking on "Search Database".