Sadat Mahalleh, ChafSadat Mahalleh is a village in Chaf Rural District of the Central District in Langarud County, Gilan province, Iran.DemographicsPopulationAt the time of the 2006 National Census, the village's population was 950 in 267 households. The following census in 2011 counted 903 people in 306 households. The 2016 census measured the population of the village as 821 people in 296 households. It was the most populous village in its rural district.