Ichihara is a city, located in Chiba Prefecture, Japan. As of 1 December 2020, the city had an estimated population of 274,117 in 128,316 households and a population density of 240 persons per km2. The total area of the city is 368.20 square kilometres (142.16 sq mi). The city is home, together with the city of Chiba, to the JEF United football club. The whole city is also parts of Greater Tokyo Area.