At the time of the 2006 National Census, the city's population was 8,704 in 2,178 households.[7] The following census in 2011 counted 13,095 people in 2,925 households.[8] The 2016 census measured the population of the city as 37,527 people in 10,701 households.[3]
The city is known as one of the oldest residential areas in Iran. There are few historical monuments in Kahrizak from its ancient history, A part of the buildings of the sugar factory and two summer residences of Fakhr al-DolehQajar are still standing.[citation needed]
^abسرشماري عمومي نفوس و مسكن 1395 : استان تهران [General Population and Housing Census 2016: Tehran Province].مرکز آمار ایران [Statistical Centre of Iran] (in Persian). Archived fromthe original(Excel) on 12 December 2021. Retrieved24 June 2025.
^Kahrizak can be found atGEOnet Names Server, atthis link, by opening the Advanced Search box, entering "-3068566" in the "Unique Feature Id" form, and clicking on "Search Database".
^Mousavi, Mir-Hossein (16 March 1986) [تاریخ تصویب (Approval date) 1364/12/25 (Iranian Jalali calendar)].ایجاد و تشکیل 4 بخش در شهرستان ری تابعه استان تهران به مرکزیت شهرری [Creation and formation of 4 districts in Ray County, affiliated with Tehran province, centered in Ray city].لام تا کام [Lam ta Kam] (in Persian).وزارت کشور [Ministry of the Interior].هیات وزیران [Council of Ministers].شناسه [ID] EEC5DF90-4D1D-4768-907D-D6C6D1DCD900.شماره دوره [Course number] 64,شماره جلد [Volume number] 10. Archived fromthe original on 21 June 2025. Retrieved21 June 2025.
^Mokhber, Mohammad (7 May 2023) [۱۴۰۲/۲/۱۷ تاریخ ابلاغ (Notification date 1402/2/17) (Iranian Jalali calendar)].تصویبنامه در خصوص تقسیمات کشوری در بخش کهریزک شهرستان ری استان تهران [Approval regarding the national divisions in Kahrizak District, Ray County, Tehran province].پژوهشکده حقوقی شهر دانش [Shahr Danesh Law Research Institute] (in Persian).وزارت کشور [Ministry of the Interior].هیات وزیران [Council of Ministers].شماره ۲۳۸۸۶/ت ۵۹۹۸۴ ه [Number 23886/T59984H]. Archived fromthe original on 23 September 2023. Retrieved22 June 2025.
^سرشماري عمومي نفوس و مسكن 1385 : استان تهران [General Population and Housing Census 2006: Tehran Province].مرکز آمار ایران [Statistical Centre of Iran] (in Persian). Archived fromthe original(Excel) on 20 September 2011. Retrieved24 June 2025.
^سرشماري عمومي نفوس و مسكن 1390 : استان تهران [General Population and Housing Census 2011: Tehran Province].Iran Data Portal—Syracuse University (in Persian).مرکز آمار ایران [Statistical Centre of Iran]. Archived fromthe original(Excel) on 20 January 2023. Retrieved24 June 2025.