Khalilabad County (Persian: شهرستان خليل آباد) is in Razavi Khorasan Province, Iran.

[3] At the time of the 2006 National Census, the county's population was 44,993 in 12,298 households.

[5] The 2016 census measured the population of the county as 51,701 in 16,684 households.

[2] Khalilabad County's population history and administrative structure over three consecutive censuses are shown in the following table.

Media related to Khalilabad County at Wikimedia Commons