Kolka SaraKolka Sara is a village in Chini Jan Rural District of the Central District in Rudsar County, Gilan province, Iran.DemographicsPopulationAt the time of the 2006 National Census, the village's population was 1,067 in 305 households. The following census in 2011 counted 1,138 people in 368 households. The 2016 census measured the population of the village as 1,118 people in 385 households.