At the time of the 2006 National Census, the village's population was 332 in 59 households, when it was in Seyd Nasr ol Din Rural District of Zarrinabad District.[5] The following census in 2011 counted 338 people in 75 households.[6] The 2016 census measured the population of the village as 307 people in 82 households, by which time the village had been separated from the district in the formation of Sarab Meymeh District. Gurab-e Sofla was transferred to Gurab Rural District created in the new district.[7] It was the most populous village in its rural district.[2]
^Gurab-e Sofla can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3793335" in the "Unique Feature Id" form, and clicking on "Search Database".
^Rahimi, Mohammad Reza (5 May 2013) [Approved 29 March 1392]. Approval letter regarding national divisions in Dehloran County, Ilam province. rc.majlis.ir (Report) (in Persian). Ministry of the Interior, Council of Ministers. Proposal 141700/42/1; Notification 85456/T48930H. Archived from the original on 27 July 2013. Retrieved 5 June 2023 – via Islamic Parliament Research Center of the Islamic Republic of Iran.