Torbat-e Heydarieh County should not be confused with Torbat-e Jam County.
| Torbat-e Heydarieh County | |
| Native Name: | Persian: شهرستان تربت حیدریه |
| Settlement Type: | County |
| Image Map1: | IranRazaviKhorasan-SVG.svg |
| Map Caption1: | Location of Razavi Khorasan province in Iran |
| Subdivision Type: | Country |
| Subdivision Name: | Iran |
| Subdivision Type1: | Province |
| Subdivision Name1: | Razavi Khorasan |
| Seat Type: | Capital |
| Seat: | Torbat-e Heydarieh |
| Parts Type: | Districts |
| Parts Style: | para |
| P1: | Central |
| P2: | Bayg |
| P3: | Jolgeh Rokh |
| P4: | Kadkan |
| Area Total Km2: | 3681 |
| Population As Of: | 2016 |
| Population Total: | 224626 |
| Population Density Km2: | auto |
| Coordinates: | 35.4167°N 68°W |
| Coordinates Footnotes: | [1] |
| Timezone: | IRST |
| Utc Offset: | +3:30 |
Torbat-e Heydarieh County (Persian: شهرستان تربت حیدریه) is in Razavi Khorasan province, Iran. Its capital is the city of Torbat-e Heydarieh.[2]
After the 2006 National Census, Jolgeh Zaveh District was separated from the county in the establishment of Zaveh County, which was divided into two districts of two rural districts each, with Dowlatabad as its capital and only city.[3]
After the 2016 census, the village of Nasar was elevated to the status of a city.[4]
At the time of the 2006 census, the county's population was 261,917, in 67,735 households.[5] The following census in 2011 counted 210,390 people in 60,777 households.[6] The 2016 census measured the population of the county as 224,626 in 68,927 households.[7]
Torbat-e Heydarieh County's population history and administrative structure over three consecutive censuses are shown in the following table.
| Administrative Divisions | 2006 | 2011 | 2016 | |
|---|---|---|---|---|
| Central District | 150,643 | 166,313 | 179,084 | |
| 20,908 | 24,381 | 27,133 | ||
| 10,375 | 10,782 | 11,932 | ||
| Torbat-e Heydarieh (city) | 119,360 | 131,150 | 140,019 | |
| Bayg District | 8,327 | 7,161 | 6,937 | |
| 4,367 | 3,584 | 3,392 | ||
| Bayg (city) | 3,960 | 3,577 | 3,545 | |
| Jolgeh Rokh District | 24,886 | 24,705 | 25,748 | |
| 7,483 | 7,565 | 7,825 | ||
| 5,903 | 6,162 | 5,686 | ||
| 10,156 | 9,257 | 10,686 | ||
| Nasar (city) | ||||
| Robat-e Sang (city) | 1,344 | 1,721 | 1,551 | |
| Jolgeh Zaveh District | 66,206 | |||
| 12,711 | ||||
| 27,332 | ||||
| 17,423 | ||||
| Dowlatabad (city) | 8,740 | |||
| Kadkan District | 11,855 | 12,031 | 12,805 | |
| 5,107 | 5,147 | 5,941 | ||
| 3,582 | 3,096 | 3,145 | ||
| Kadkan (city) | 3,166 | 3,788 | 3,719 | |
| Total | 261,917 | 210,390 | 224,626 | |
Torbat-e Heydarieh County is 1005 km away from Tehran, and in a mountainous region on the skirt of mountains having different weather in different areas. In the past, this city was called Zaveh. According to a narrative in the 13th century, Sheikh Haydar, a famous Gnostic, was living there. The change of its name from Zaveh to Torbat-e Heydarieh is related to the life and tomb of this great Gnostic. The existing cultural heritage belongs to Sasanian times and the 13th century: Bazeh Hovar and Robat Sefid temple, Ghotb-e-dinn Haydar, Sheikh Haydar, Sheikh Abolghasema, and Shoh Senjan tombs.