At the time of the 2006 National Census, the village's population was 1,348 in 196 households, when it was in Veys Rural District of the former Bavi District of Ahvaz County).[4] The following census in 2011 counted 2,006 people in 512 households,[5] by which time the district had been separated from the county in the establishment of Bavi County. The rural district was transferred to the new Veys District, and Kut-e Seyyed Soltan was transferred to Zargan Rural district created in the district.[6] The 2016 census measured the population of the village as 1,523 people in 385 households. It was the most populous village in its rural district.[2]
^Kut-e Seyyed Soltan can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3764699" in the "Unique Feature Id" form, and clicking on "Search Database".