Khulna District. For the division, see Khulna Division.Khulna is the third largest city in Bangladesh. It is located on the banks of the Rupsha and Bhairab rivers in Khulna District. It is the divisional headquarters of Khulna Division and a major industrial and commercial center. It has a seaport named Mongla on its outskirts, 38 km from Khulna City. The population of the city, under the jurisdiction of the City Corporation, was 1,000,000 in 2010 estimation. The wider Statistical Metropolitan Area had at the same time an estimated population of 1,435,422.The city is 333 km southwest of Bangladesh's capital Dhaka, to which it is connected by air, road, train and water transportation. The steamer fleet for this route includes the ancient ships Tern (1912), Osrich and Lepcha.