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 (212 sq mi). 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.

Takahata is a town located in Yamagata Prefecture, Japan. As of 1 April 2019, the town had an estimated population of 23,367, in 7629 households, and a population density of 130 persons per km2. The total area of the town is 180.26 square kilometres (70 sq mi).