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.[2]
After the 2016 census, Kushkak was transferred to Kushkak Rural District created in Qohestan District.[4]
^Kushkak can be found at GEOnet Names Server, at this link, by opening the Advanced Search box, entering "-3072604" in the "Unique Feature Id" form, and clicking on "Search Database".