Estalkh Zir

Estalkh Zir is a village in Sheykh Neshin Rural District of Shanderman District, Masal County, Gilan province, Iran.

At the 2006 National Census, its population was 815 in 218 households. The following census in 2011 counted 831 people in 233 households. The latest census in 2016 showed a population of 803 people in 267 households. It was the most populous village in its rural district.