At the time of the 2006 National Census, the village's population was 1,039 in 246 households, when it was in Howmeh-ye Sharqi Rural District of the Central District. The following census in 2011 counted 726 people in 196 households. The 2016 census measured the population of the village as 706 people in 210 households, by which time the village had been separated from the district in the formation of Soltanabad District. Rostamabad was transferred to Rostamabad Rural district created in the new district. It was the most populous village in its rural district.
^Rostamabad can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3081354" in the "Unique Feature Id" form, and clicking on "Search Database".
^ Rahimi, Mohammadreza (15 January 2013) [Approved 19 July 1391]. Approval letter regarding national divisions in Khuzestan province(PDF). rrk.ir (Report) (in Persian). Ministry of the Interior, Political and Defense Commission. Resolution 158802/T38854AH; Notification 205939/T45312H. Archived from the original(PDF) on 4 November 2023. Retrieved 4 November 2023.
