Mehrestan County (Persian: شهرستان مهرستان) (formerly known as Zaboli County (Persian: شهرستان زابلی)) is a county in Sistan and Baluchestan Province in Iran. The capital of the county is Zaboli. It was separated from Saravan County in 2007. At the 2006 census, the county's population was 43,749, in 8,227 families. The county is subdivided into two districts: the Central District and Ashar District. The county has one city: Zaboli. In 2011, the name of the county changed to Mehrestan.