Shahrud DistrictShahrud District is in Khalkhal County, Ardabil province, Iran. Its capital is the city of Kolowr. The district is in the Alborz (Elburz) mountain range.DemographicsLanguageTati is the main language of the district.PopulationAt the time of the 2006 National Census, the district's population was 13,701 in 3,604 households. The following census in 2011 counted 12,650 people in 3,693 households. The 2016 census measured the population of the district as 11,770 inhabitants living in 3,977 households.