OlkashOlkash is a village in Shal Rural District of Shahrud District in Khalkhal County, Ardabil province, Iran.DemographicsPopulationAt the time of the 2006 National Census, the village's population was 92 in 18 households. The following census in 2011 counted 80 people in 21 households. The 2016 census measured the population of the village as 49 people in 13 households.