At the time of the 2006 National Census, the village's population was 2,179 in 520 households, when it was in the former Khanmirza District of Lordegan County.[6] The following census in 2011 counted 2,337 people in 569 households.[7] The 2016 census measured the population of the village as 2,385 people in 714 households.[2]
In 2018, the district was separated from the county in the establishment of Khanmirza County, and the rural district was transferred to the new Central District.[8]
^OpenStreetMap contributors (29 August 2024). "Javanmardi, Khanmirza County" (Map). openstreetmap.org (OpenStreetMap) (in Persian). Retrieved 29 August 2024.
^Javanmardi can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3067861" in the "Unique Feature Id" form, and clicking on "Search Database".
^Jahangiri, Ishaq (c. 2019) [Approved 8 December 1397]. Approval letter regarding country divisions in Chaharmahal and Bakhtiari province. rc.majlis.ir (Report) (in Persian). Ministry of the Interior, Council of Ministers. Notification 164881/T55510H. Archived from the original on 21 March 2019. Retrieved 1 April 2023 – via Islamic Parliament Research Center of the Islamic Republic of Iran.