Sar Daq (Persian: سردق)[a] is a village in, and the capital of, Sar Daq Rural District of Yunesi District, Bajestan County, Razavi Khorasan province, Iran.

[4] At the time of the 2006 National Census, the village's population was 1,163 in 277 households, when it was in Yunesi Rural District of the former Bajestan District of Gonabad County.

[5] The following census in 2011 counted 1,254 people in 345 households,[6] by which time the district had been separated from the county in the establishment of Bajestan County.

[4] The 2016 census measured the population of the village as 1,254 people in 345 households.

This Bajestan County location article is a stub.