Rasht is a city in the Central District of Rasht County, Gilan province, Iran, serving as capital of the province, the county, and the district. The cit…Rasht is a city in the Central District of Rasht County, Gilan province, Iran, serving as capital of the province, the county, and the district. The city is also known as the "City of Rain" and, with a population of 679,995 in 2016, is the most populous city of northern Iran.