At the time of the 2006 National Census, the city's population was 3,910 in 862 households,[6] when it was capital of the former Aslan Duz District of Parsabad County.[7] The following census in 2011 counted 4,557 people in 1,172 households.[8] The 2016 census measured the population of the city as 6,348 people in 1,760 households.[2]
In 2017, the district was separated from the county in the establishment of Aslan Duz County, and Aslan Duz was transferred to the new Central District as the county's capital.[4]
^OpenStreetMap contributors (19 August 2024). "Aslan Duz, Aslan Duz County" (Map). openstreetmap.org (OpenStreetMap) (in Persian). Retrieved 19 August 2024.
^Aslan Duz can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3053982" in the "Unique Feature Id" form, and clicking on "Search Database".
^ abcdJahangiri, Ishaq (24 March 2017) [Approved 7 December 1397]. Approval letter regarding national divisions in Parsabad County of Ardabil province. rc.majlis.ir (Report) (in Persian). Ministry of the Interior, Council of Ministers. Notification 164180/T55515H. Archived from the original on 15 March 2019. Retrieved 26 March 2023 – via Islamic Parliament Research Center of the Islamic Republic of Iran.