At the time of the 2006 National Census, Qaleh's population was 978 in 230 households, when it was a village in Razavar Rural District of the Central District.[5] The following census in 2011 counted 1,160 people in 316 households,[6] by which time the rural district had been separated from the district in the formation of Bilavar District.[3] The 2016 census measured the population of the city as 1,130 people in 315 households. It was the most populous village in its rural district.[2]
After the census, Qaleh was elevated to the status of a city.[7]
^Habibi, Hassan (19 March 2012) [Approved 16 April 1372]. Carrying out reforms in the villages of Kermanshah province. rc.majlis.ir (Report) (in Persian). Ministry of the Interior, Political-Defense Commission of the Government Board. Proposal 1.4.42.1889; Letter 93808/907. Archived from the original on 9 June 2013. Retrieved 29 January 2024 – via Research Center of the System of Laws of the Islamic Council of Farabi Mobile Library.