At the time of the 2006 National Census, Nazok-e Olya's population was 2,466 in 613 households, when it was a village in Gejlarat-e Gharbi Rural District of the former Poldasht District of Maku County. The following census in 2011 counted 2,761 people in 789 households, by which time the district had been separated from the county in the establishment of Poldasht County. The rural district was transferred to the new Aras District. Nazok-e Olya was elevated to the status of a city in 2016. The 2016 census measured the population of the city as 2,667 people in 829 households.
^Nazok-e Olya can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3076767" in the "Unique Feature Id" form, and clicking on "Search Database".
^ Davodi, Parviz (24 January 1393) [Approved 18 September 1386]. Approval letter regarding reforms of national divisions in West Azerbaijan province. rc.majlis.ir (Report) (in Persian). Ministry of the Interior, Political-Defense Commission of the Government Board. Proposal 138613/42/4/1; Notification 156165/T32690K. Archived from the original on 13 April 2014. Retrieved 21 November 2023 – via Islamic Parliament Research Center.
^Habibi, Hassan (22 December 2014) [Approved 29 August 1370]. Making reforms in the villages of West Azerbaijan province. rc.majlis.ir (Report) (in Persian). Ministry of the Interior, Defense Political Commission of the Government Board. Proposal 9218.1.4.42; Notification 71023/T140K. Archived from the original on 13 December 2014. Retrieved 22 December 2023 – via Islamic Parliament Research Center.
