Ichihara

Ichihara is an industrial city in Chiba Prefecture that stretches across a wide area between Tokyo Bay and the forested hills of the Boso Peninsula. The city connects refinery complexes and port facilities along the coast with residential neighborhoods and natural areas inland.

During the Nara period this area served as the provincial capital of Kazusa, which later fragmented into smaller villages throughout the 8th century. The modern city took shape in the 1960s when many municipalities merged as the petrochemical industry transformed the region.

The original name refers to a historical market field where farmers sold their goods before industry reshaped the coast. Today you can still see scattered rice paddies at the edges of town, while the waterfront is defined by smokestacks and storage facilities.

The coastal strip with industrial facilities is generally closed to casual visits, while the southern part offers walking trails and parkland. Public transport connects residential districts to surrounding cities, but a car is helpful for traveling within the area.

The waterfront holds the largest concentration of oil refineries in the country, lit at night by thousands of work lights. Some locals refer to this nighttime scene as an industrial landscape because of the lights and structures.

Location: Chiba Prefecture

Inception: May 1, 1963

Reference: 122190

Part of: Chiba metropolitan area

Shares border with: Chiba, Mobara, Sodegaura, Kisarazu, Kimitsu, Otaki, Chonan, Nagara

Website: https://city.ichihara.chiba.jp

GPS coordinates: 35.49806,140.11544

Latest update: December 12, 2025 23:01