At the time of the 2006 National Census, the district's population was 34,719 in 8,312 households. The following census in 2011 counted 37,295 people in 10,648 households. The 2016 census measured the population of the district as 42,751 inhabitants in 12,664 households.
12Habibi, Hassan (19 April 2000) [تاریخ تصویب (Approval date) 1379/01/31 (Iranian Jalali calendar)]. ایجاد تغییرات و اصلاحات تقسیماتی در استان گلستان[Making divisional changes and reforms in Golestan province]. لام تا کام [Lam ta Kam] (in Persian). وزارت کشور [Ministry of the Interior]. هیات وزیران [Council of Ministers]. شناسه [ID] CC43B978-AFB6-47F6-BF84-C1A3555E4593. شماره دوره [Course number] 79. Archived from the original on 18 December 2023. Retrieved 5 December 2025.
123سرشماري عمومي نفوس و مسكن 1395: استان گلستان[General Population and Housing Census 2016: Golestan Province]. مرکز آمار ایران [Statistical Centre of Iran] (in Persian). Archived from the original(Excel) on 29 March 2019. Retrieved 19 December 2022.
↑Jahangiri, Eshaq (4 January 2020) [۱۳۹۸/۱۰/۱۴ (1398/10/14) (Iranian Jalali calendar)]. تصویبنامه در خصوص تغییر نام شهرستان علیآباد استان گلستان به علیآباد کتول[Approval regarding changing the name of Aliabad County, Golestan province, to Aliabad-e Katul]. پژوهشکده حقوقی شهر دانش [Shahr Danesh Law Research Institute] (in Persian). وزارت کشور [Ministry of the Interior]. هیات وزیران [Council of Ministers]. پیشنهاد شماره ۱۳۳۴۲۸ [Proposal No. 133428]. Archived from the original on 24 March 2023. Retrieved 5 December 2025.
12سرشماري عمومي نفوس و مسكن 1385: استان گلستان[General Population and Housing Census 2006: Golestan Province]. مرکز آمار ایران [Statistical Centre of Iran] (in Persian). Archived from the original(Excel) on 20 September 2011. Retrieved 25 September 2022.
12سرشماري عمومي نفوس و مسكن 1390: استان گلستان[General Population and Housing Census 2011: Golestan Province]. Iran Data Portal—Syracuse University (in Persian). مرکز آمار ایران [Statistical Centre of Iran]. Archived from the original(Excel) on 17 January 2023. Retrieved 19 December 2022.