|Time zone||IRST (UTC+3:30)|
|• Summer (DST)||IRDT (UTC+4:30)|
Roudehen (Persian: رودهن, also Romanized as Rūdehen, Rūd-e Hen, and Rūdīān) is a city in and the capital of Roudehen District, in Damavand County, Tehran Province, Iran. At the 2006 census, its population was 19,535, in 5,693 families.
Roudehen is located just past the fork between Haraz and Firoozkooh roads. The Alborz mountain range sits to the North. It is surrounded by mountains to the North, and Mt. Ghorch, Mt. Soori, and others to the South separating it from the central plateau of Iran. It is 1850 meters above the sea level and has a total area of 50 square kilometers.
Before the construction of Tehran-Mazandaran Road, the area was called Damavand in historic reference. After the construction of the road in 1903, however, Roudehen was referred to as a place for rest midway of the road. As an example, in Matla-ol-shams written by Sani-al-doleh, it reads: "Roudehen is about 3 kilometers away from Bumahen near the Ah river and is on the left side of the road. It has 15 families, all are immigrants from Urmieh. Sani-al-doleh in 1875 and British Oliver Darsi in 1830 both passed the road and mentioned the name of the villages which are now part of the town or the surrounding areas.
In the eastern part, the village of Kreiton and Ana building complex are now part of Roudehen. The villages of Mehrabad and Golahak are being encroached upon by development accelerated by the construction of the Islamic Azad University.
Roudehen's municipality was founded in 1965. According to the national census in 1976, the population of Roudehen and suburb was 5237 out of which 6.57% were inhabited in the town and the rest in the surrounding villages. Roudehen had a population of 12000 when the Islamic Azad University (IAU) was founded in 1983. They were mostly local established families who, until the university development, remained comprised the village population. Local commuting patterns, housing, and job development increased dramatically with the establishment of the Islamic Azad University. (Prepared by M. Mohammadi)
Colleges and universities
- Islamic Azad University, Roudehen Branch
- Islamic Azad University Roudehen Branch (RIAU)
- Faculty of Agriculture, Islamic Azad University of Roudehen
Faculty of English Language and Literature (FELL) in this university with 3000 students is said to be the largest one in the Middle East.
- Roudehen can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3081457" in the "Unique Feature Id" form, and clicking on "Search Database".
- "Census of the Islamic Republic of Iran, 1385 (2006)". Islamic Republic of Iran. Archived from the original (Excel) on 2011-11-11.
- "پورتال دانشگاه آزاد اسلامي واحد رودهن -فارسي".
- "Roudehen Islamic Azad University".