Quzlu, KowsarQuzlu is a village in Zarjabad Rural District of Firuz District in Kowsar County, Ardabil province, Iran.DemographicsPopulationAt the time of the 2006 National Census, the village's population was 458 in 111 households. The following census in 2011 counted 463 people in 126 households. The 2016 census measured the population of the village as 364 people in 119 households.