At the time of the 2006 National Census, the city's population was 45,332 in 12,122 households, when it was in Tehran province.[6] The 2016 census measured the population of the city as 55,640 in 17,203 households,[3] by which time the county had been separated from the province in the establishment of Alborz province.[7]
Hashtgerd includes several nearby archeological mounds, known collectively as "Ozbaki." These sites, which have been actively excavated for several decades, include several mounds or Tepes, including Doshan Tapeh. [8] Includes remains of ancient settlements dating back to the 7th millennium BC through 1400 BC. These settlements include those inhabited by "Grey earthenware" Aryans and the Medians.
A park called the Statue Park has been built in a green area across a valley in Hashtgerd. The park features 12 busts of notable Iranians.
^ abسرشماري عمومي نفوس و مسكن 1395 : استان البرز [General Population and Housing Census 2016: Alborz Province]. مرکز آمار ایران [Statistical Centre of Iran] (in Persian). Archived from the original(Excel) on 28 January 2020. Retrieved 22 June 2025.
^Hashtgerd can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3066219" in the "Unique Feature Id" form, and clicking on "Search Database".
^Mousavi, Mir-Hossein (12 July 1989) [تاریخ تصویب (Approval date) 1368/04/21 (Iranian Jalali calendar)]. ایجاد و تأسیس شهرستان ساوجبلاغ به مرکزیت شهر هشتگرد در تابعیت استان تهران از ترکیب دو بخش مرکزی و طالقان [Creation and establishment of Savojbolagh County, centered in Hashtgerd city, under the jurisdiction of Tehran province, from the combination of two districts, Central and Taleqan]. لام تا کام [Lam ta Kam] (in Persian). وزارت کشور [Ministry of the Interior]. هیات وزیران [Council of Ministers]. شناسه [ID] 79289538-F2B0-44E3-8471-256A17739BEC. شماره دوره [Course number] 68, شماره جلد [Volume number] 8. Archived from the original on 16 December 2023. Retrieved 20 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 from the original(Excel) on 20 September 2011. Retrieved 22 June 2025.
^Larijani, Ali (23 June 2010) [تاریخ تصویب (Approval date) 1389/04/02 (Iranian Jalali calendar)]. قانون تأسیس استان البرز [Law on the establishment of Alborz province]. لام تا کام [Lam ta Kam] (in Persian). وزارت کشور [Ministry of the Interior]. مجلس شورای اسلامی [Islamic Consultative Assembly]. نامه شماره [Letter Number] 30588/412. Archived from the original on 16 December 2023. Retrieved 20 June 2025.