 Gifu remained prosperous in the post-war years, until its population started to decline like many Japanese cities in the 1980s and '90s.Though the city has shown a large increase in population in recent years, this trend results largely from the inclusion, for the first time, of the population of Yanaizu, which added about 13,000 people to Gifu's numbers.Foreign residents of the city, who number over 9,000, also factor into this growth.