Korsi is a village in Tatarestaq Rural District of Baladeh District, Nur County, Mazandaran province, Iran. At the time of the 2006 National Census, the village's population was 180 in 59 households. The following census in 2011 counted 108 people in 53 households. The 2016 census measured the population of the village as 186 people in 80 househol…Korsi is a village in Tatarestaq Rural District of Baladeh District, Nur County, Mazandaran province, Iran. At the time of the 2006 National Census, the village's population was 180 in 59 households. The following census in 2011 counted 108 people in 53 households. The 2016 census measured the population of the village as 186 people in 80 households. It was the most populous village in its rural district.