How big is Tangshan lunan district?

Lunan district, with an area of 67.33 square kilometers, is the birthplace of Tangshan City, located in the southern half of Tangshan City. Lunan district has a long history. During the Wanli period of the Ming Dynasty, Zaoshuzhuang immigrated here and gradually became a village. With the establishment of Kaiping Mining Bureau, the commerce and trade in hilly areas in China are increasingly gathering and prosperous. By the 1930s, it had become the birthplace of Tangshan. Built in 1952, it was named after being south of Jingshan Railway. It has jurisdiction over 7 sub-district offices and 1 township, with a division area of 67.33 square kilometers and a population of 220,000.