Kermanshah (Southern Kurdish: کرماشان - Kirmaşan Persian: کرمانشاه, Kermānshāh, also known as Bakhtaran, Bākhtarān, Kermānshāhān), the capital of Kermanshah Province, is located 525 kilometres (326 miles) from Tehran in the western part of Iran. According to the 2011 census, its population is 851,405. People mostly speak Southern Kurdish. Kermanshah has a moderate and mountainous climate. Kermanshah is the largest Kurdish-speaking city in Iran. Majority of people in Kermanshah are Shia Muslims, and there are minorities such as Sunni Muslims, Yarsanism and so on.