Sagae is a city located in Yamagata Prefecture, Japan. As of 1 January 2020, the city had an estimated population of 40,131, and a population density of 289 persons per km2. The total area of the city is 139.03 square kilometres (54 sq mi).

Murayama is a city located in Yamagata Prefecture, Japan. As of 1 February 2020, the city had an estimated population of 23,643 in 8133 households, and a population density of 120 persons per km². The total area of the city is 196.98 square kilometres (76 sq mi).