Kalat County (Persian: شهرستان کلات) is a shahrestan (county) in Razavi Khorasan Province in Iran. The capital of the county is Kalat. At the 2006 census, the county's population was 39,560, in 9,489 families. The County has two districts: Central District and Zavin District. The County has two cities: Kalat and Shahr-e Zow.