Kingisepp, formerly Yamburg (Я́мбург), Yam (Ям), and Yama, is a town and the administrative center of Kingiseppsky District of Leningrad Oblast, Russia, located along the Luga River 138 kilometers (86 mi) southwest of St. Petersburg, 20 kilometers (12 mi) east of Narva, and 40 kilometers (25 mi) south of the Gulf of Finland. Population: 48,488 (2010 census); 50,295 (2002 census); 49,954 (1989 Sovi…