Ryōzen is one of the five towns incorporated into Date City, Fukushima Prefecture, Japan, along with the former towns of Date, Hobara, Tsukidate, and Yanagawa. It was formerly an independent town located in Date District. As of 2003, the town had an estimated population of 9,491 and a density of 108.68 persons per km2. The total area is 87.33 km2.

Date is a city in Fukushima Prefecture, Japan. As of 31 May 2020, the city had an estimated population of 59,625 in 22,843 households and a population density of 220 persons per km2. The total area of the city was 265.10 square kilometres (102.36 sq mi).