Wikipedia
Shahmirzad (, Native Name شامرزا) is a town located in the north of Iran, and on the southern slopes of the Alborz Mountains. Permanent population of the town was recorded as 7,273 people, 1,860 families in the 2006 census. During summer, the town's population rises to up to 40,000 people, as tourists visit the town for its fine climate and its popular gardens.
Shahmirzad has been home to people of diverse ethnic backgrounds, a large group of whom seasonally settled in cities and towns of Mazandaran, such as Babol, Sari, Neka, and Behshahr. During the past decades many Muslim, Bahá'í, and Shahmirzadi Jews, migrated to larger cities in Iran and abroad, most notably San Francisco Bay Area.
Shahmirzadi language (شامرزایی), is a Caspian language close to Mazandarani and Gilaki.
Shahmirzad's walnut orchard with the size of is noted by the UN, Food and Agriculture Organization, as the largest of its kind in the world. Shahmirzadi homeowners are given a proprietary interest in the walnut orchard in proportion to the amount of land they own in the village. Shahmirzad also produces mineral water "Tenab Shahmirzad".