Ichikawa is a city in western Chiba Prefecture, Japan. As of 31 January 2024, the city had an estimated population of 492,749 in 256,229 households and a population density of 8577 persons per km2. The total area of the city is 57.45 square kilometres. The city has good transportation connections to the center of Tokyo, as with many areas of Chiba Prefecture. Major rail routes and roads pass through the city.