According to the 1976 National Census, the population of Rudehen and suburbs was 5,237, out of which 6.57% lived in the town and the remainder in the surrounding villages.

Imamzadeh Sultan Mutahhar is an historical mausoleum located in the Bumehen neighborhood, rebuilt in the 15th century and containing the tomb of the murdered son of Jafar as Sadiq, the 6th Shia Imam.

As an example, in Matla-ol-shams written by Sani-al-doleh, it reads: "Rudehen is about 3 kilometers away from Bumahen near the Ah river and is on the left side of the road.

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.

Faculty of English Language and Literature (FELL) in this university with 3000 students is said to be the largest one in the Middle East.