Sefid Rud, IranSefid Rud is a village in Kalashtar Rural District of the Central District in Rudbar County, Gilan province, Iran.DemographicsPopulationAt the time of the 2006 National Census, the village's population was 644 in 169 households. The following census in 2011 counted 600 people in 184 households. The 2016 census measured the population of the village as 470 people in 163 households.