Sardehat-e SheykhSardehat-e Sheykh is a village in Zanjanrud-e Pain Rural District of Zanjanrud District in Zanjan County, Zanjan province, Iran.DemographicsPopulationAt the time of the 2006 National Census, the village's population was 219 in 60 households. The following census in 2011 counted 143 people in 45 households. The 2016 census measured the population of the village as 112 people in 37 households.