Kushkak (Persian: كوشكك)[a] is a village in, and the capital of, Kushkak Rural District of Qohestan District, Darmian County, South Khorasan province, Iran.

[4] At the time of the 2006 National Census, the village's population was 867 in 251 households, when it was in Qohestan Rural District.

[5] The following census in 2011 counted 858 people in 256 households.

[6] The 2016 census measured the population of the village as 877 people in 277 households.

This Darmian County location article is a stub.