Rudehen DistrictRudehen District is in Damavand County, Tehran province, Iran. Its capital is the city of Rudehen.DemographicsPopulationAt the time of the 2006 National Census, the district's population was 27,031 in 7,776 households. The following census in 2011 counted 29,330 people in 8,939 households. The 2016 census measured the population of the district as 41,104 inhabitants in 13,035 households.