Kimitsu is a city located in Chiba Prefecture, Japan. As of 30 November 2020, the city had an estimated population of 83,058 in 39,138 households and a population density of 260 persons per km2. The total area of the city is 318.83 km2 (123.10 sq mi).

Keiyō Industrial Zone , also known as the Keiyō Industrial Region, the Keiyō Industrial Area, or the Keiyō Industrial Belt, is an industrial zone on the northeastern coast of Tokyo Bay that crosses 8 cities in Chiba Prefecture, Japan. The zone spans from the western part of Urayasu in the northeast to Futtsu in the southeast of the region. The zone has no political or administrative status.