Yonezawa is a city in Yamagata Prefecture, Japan. As of 1 February 2020, the city had an estimated population of 81,707 in 33,278 households, and a population density of 150 persons per km2. The total area of the city is 548.51 square kilometres. Yonezawa is most famous for its local delicacies and for being a castle town that was once home to the Uesugi clan, including the daimyō Uesugi Yozan.