At the time of the 2006 National Census, the district's population was 23,015 in 4,852 households.[4] The following census in 2011 counted 25,028 people in 6,598 households.[5] The 2016 census measured the population of the district as 20,927 inhabitants in 6,031 households.[2]
^Habibi, Hassan (c. 2023) [Approved 21 March 1376]. Approval letter regarding the creation and establishment of Shirin Su District. qavanin.ir (Report) (in Persian). Ministry of the Interior, Political-Defense Commission of the Government Council. Resolution 93808/T907. Archived from the original on 20 March 2023. Retrieved 22 October 2023 – via Laws and Regulations Portal of the Islamic Republic of Iran.