Sakai is a town situated in the Ibaraki Prefecture of Japan. It covers a total land area of approximately 46.59 square kilometers, which is equivalent to about 17.99 square miles.
As of October 1, 2020, the town had an estimated population of 24,061 residents living in 8,890 households. The population density of the area is recorded at 516 persons per square kilometer. Additionally, approximately 29.1% of the local population is aged 65 or older.