Kiryū (桐生市, Kiryū-shi?) is a city in Gunma, Japan, near the cities of Ōta and Ashikaga. Incorporated on March 1, 1921, Kiryū is considered both a city and part of the Greater Tokyo Metropolitan Area, although it is still widely thought of as a rural area. Its population has been in steady decline since the early 1990s,[citation needed] due to both a national population stagnation as well as a steady migration of young people to metropolitan areas (principally Tokyo).[citation needed]