Tehran Tehran Province covers an area of 18,909 square kilometres (7,301 sq mi) and is located to the north of the central plateau of Iran. The province was put as part of First Region with its secretariat located in its capital city, Tehran, upon the division of the provinces into 5 regions solely for coordination and development purposes on June 22, 2014. Tehran Province borders Māzandarān Province in the north, Qom Province in the south, Semnān Province in the east, and Alborz Province in the