Shiroi is a city located in the Chiba Prefecture of Japan. As of November 1, 2020, the city had an estimated population of 63,190 residents living in 26,204 households. It has a population density of approximately 1,800 persons per square kilometer.
The city covers a total area of 35.48 square kilometres (13.70 sq mi). Its name is derived from the Japanese word for "white," which is written as 白い.