At the time of the 2006 National Census, the village's population was 1,638 in 445 households, when it was in Rudpey-ye Jonubi Rural District[b] of the Central District.[6] The following census in 2011 counted 1,618 people in 502 households,[7] by which time the rural district had been separated from the district in the establishment of Rudpey District.[8] The 2016 census measured the population of the village as 1,544 people in 529 households, when it had been transferred to Rudpey-ye Gharbi Rural District created in the district.[5] It was the most populous village in its rural district.[2]
^Seyyed Mahalleh can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "47991" in the "Unique Feature Id" form, and clicking on "Search Database".
^Habibi, Hassan (18 May 1390) [Approved 25 March 1376]. Changes in national divisions in Mazandaran province. rc.majlis.ir (Report) (in Persian). Ministry of the Interior, Political-Defense Commission of the Government Board. Proposal 1.4.42.275; Notification 55582/17981K. Archived from the original on 9 August 2011. Retrieved 14 January 2024 – via Islamic Parliament Research Center.
^Rahimi, Mohammadreza (c. 2023) [Approved 20 May 1389]. Reforms and changes in divisions in Sari and Amol Counties. qavanin.ir (Report) (in Persian). Ministry of the Interior, Political and Defense Commission. Proposal 1/4/42/126400; Resolution 158802/T38854H. Archived from the original on 21 May 2023. Retrieved 21 May 2023 – via Laws and Regulations Portal of the Islamic Republic of Iran.