At the time of the 2006 National Census, the village's population was 2,388 in 544 households, when it was in the former Raz and Jargalan District of Bojnord County.[7] The following census in 2011 counted 2,732 people in 643 households.[8] The 2016 census measured the population of the village as 2,852 people in 718 households, by which time the district had been separated from the county in the establishment of Raz and Jargalan County, and the rural district was transferred to the new Jargalan District.[5] It was the most populous village in its rural district.[2]
After the 2016 census, Yekkeh Soud-e Sofla merged with the villages of Yekkeh Soud-e Olya and Hasanabad to become the village of Yekkeh Soud.[3]
^Also romanized as Yekkeh So‘ūd; formerly Yekkeh Soud-e Sofla (يكه سعود سفلي),[3] also romanized as Yekkeh So‘ūd-e Soflá; also known as Yekkeh So‘ūd-e Pā’īn[4]
^Yekkeh Soud-e Sofla can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3845400" in the "Unique Feature Id" form, and clicking on "Search Database".
^ abRahimi, Mohammad Reza (c. 2021) [Approved 29 September 2013]. Distributional changes in North Khorasan province. qavanin.ir (Report) (in Persian). Ministry of the Interior, Cabinet of Ministers. Proposal 185757/42/4/1. Archived from the original on 8 January 2021. Retrieved 19 May 2023 – via Laws and Regulations Portal of the Islamic Republic of Iran.
