Birjand County

Birjand County is in South Khorasan province, Iran. Its capital is the city of Birjand.

History
In 2007, the village of Mohammadiyeh was elevated to the status of the city of Mohammadshahr. After the 2011 National Census, Khusf District was separated from the county in the establishment of Khusf County.

After the 2016 census, Shakhen and Shakhenat Rural Districts were separated from the Central District in the establishment of Shakhenat District.

Population
At the time of the 2006 census, the county's population was 221,756 in 60,240 households. The following census in 2011 counted 259,506 people in 71,384 households. The 2016 census measured the population of the county as 261,324 in 74,657 households.

Administrative divisions
Birjand County's population history and administrative structure over three consecutive censuses are shown in the following table.