Shal is a city in, and the capital of, Shal District of Buin Zahra County, Qazvin province, Iran. At the time of the 2006 National Census, the ci…Shal is a city in, and the capital of, Shal District of Buin Zahra County, Qazvin province, Iran. At the time of the 2006 National Census, the city's population wa 15,104 in 3,348 households. The following census in 2011 counted 14,996 people in 3,972 households. The 2016 census measured the population of the city as 15,290 people in 4,217 households.