Farahan County is in Markazi province, Iran. Its capital is the city of Farmahin. After the 2006 National Census, Khenejin Rural District wa…Farahan County is in Markazi province, Iran. Its capital is the city of Farmahin. After the 2006 National Census, Khenejin Rural District was separated from Komijan County, and Farahan District from Tafresh County, in the establishment of Farahan County, which was divided into two districts of two rural districts each, with Farmahin as its capital and only city at the time. After the 2016 census, the village of Talkh Ab was elevated to the status of a city.