Eshtehard County (Persian: شهرستان اشتهارد) is a county in Alborz Province, Iran. The capital of the county is Eshtehard. At the 2006 census, its population was 23,601, in 6,716 families. The county is subdivided into two districts: the Central District and Palangabad District. The County has one city: Eshtehard. The county was separated from Karaj County in 2012.