Khusf County (Persian: شهرستان خوسف) is in South Khorasan province, Iran.
[3] After establishment of the county, the village of Mohammadiyeh was elevated to city status as Mohammadshahr.
[4] At the time of the 2016 National Census, the county's population was 27,600 in 7,492 households.
[2] Khusf County's population and administrative structure are shown in the following table.
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