Pir Hajat Rural DistrictPir Hajat Rural District is in the Central District of Tabas County, South Khorasan province, Iran. Its capital is the village of Halvan.DemographicsPopulationAt the time of the 2006 National Census, the rural district's population was 1,033 in 357 households. There were 793 inhabitants in 283 households at the following census of 2011. The 2016 census measured the population of the rural district as 808 in 294 households, by which time the county had been separated from the province to join South Khorasan province. The most populous of its 29 villages was Halvan, with 418 people.