At the 2006 National Census, its population was 2,394 in 648 households, when it was in Bala Velayat Rural District of the Central District.[5] The following census in 2011 counted 2,590 people in 791 households.[6] The latest census in 2016 showed a population of 2,704 people in 858 households.[2]
In 2018, Qaleh-ye Bala Rural District and Rezqabad Rural District were established in the newly formed Farah Dasht District.[4] The villages of Farg and Qaleh-ye Bala were merged to form the new city of Farg Qaleh.[7]
^Rezqabad can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3779828" in the "Unique Feature Id" form, and clicking on "Search Database".