| Farahan County | |
| Native Name: | Persian: شهرستان فراهان |
| Settlement Type: | County |
| Image Map1: | IranMarkazi-SVG.svg |
| Map Caption1: | Location of Markazi province in Iran |
| Subdivision Type: | Country |
| Subdivision Type1: | Province |
| Subdivision Name1: | Markazi |
| Seat Type: | Capital |
| Seat: | Farmahin |
| Parts Type: | Districts |
| Parts Style: | para |
| P1: | Central |
| P2: | Khenejin |
| Population As Of: | 2016 |
| Population Total: | 28994 |
| Coordinates Footnotes: | [1] |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
Farahan County (Persian: شهرستان فراهان) is in Markazi province, Iran. Its capital is the city of Farmahin.[2]
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.[2]
After the 2016 census, the village of Talkh Ab was elevated to the status of a city.[3]
The majority of the county’s population are Persians who speak the Persian language.[4]
At the time of the 2011 census, the county's population was 30,042 people in 9,535 households.[5] The 2016 census measured the population of the county as 28,994 in 9,744 households.[6]
Farahan County's population history and administrative structure over two consecutive censuses are shown in the following table.
| Administrative Divisions | 2011 | 2016 | |
|---|---|---|---|
| Central District | 17,118 | 16,237 | |
| 10,158 | 7,845 | ||
| 2,663 | 2,636 | ||
| Farmahin (city) | 4,297 | 5,756 | |
| Khenejin District | 12,924 | 12,757 | |
| 5,897 | 2,838 | ||
| 7,027 | 6,684 | ||
| Khenejin (city) | 3,235 | ||
| Talkh Ab (city) | |||
| Total | 30,042 | 28,994 | |