The area of present-day Kimitsu was largely part of the
Kururi Domain under the
Edo period Tokugawa shogunate, centered on the
jōkamachi of
Kururi Castle. It was divided between the Moda District and the Sue District in the early
Meiji period cadastral reforms. Both districts became part of
Kimitsu District from April 1, 1897. The villages of Susaki and Yaehara were established with the modern municipal system on April 1, 1889. Kimitsu Town was founded by the merger of these villages on April 1, 1943, and expanded through the annexation of two neighboring villages, Sunami and Sadamoto, on April 1, 1944. The town continued to expand by annexing the towns of Kazusa and Koito and the villages of Seiwa and Obitsu on September 28, 1970. Kimitsu was elevated to city status on September 1, 1971.
About merger Before Kimitsu City was established, Kimitsu Town went through three mergers in 1943, 1954, and 1970. Except for the 1954 merger, which was based on the Town and Village Merger Promotion Law (known as the "Great Merger of Showa"), the other two mergers had no relation to national policies. In 1943, when the first Kimitsu Town was formed, Japan was in the middle of World War II. The Yaehara Factory, a branch of the Kisarazu Naval Air Corps, was built on a large area of land across Yaehara Village and Susai Village. As a result, there were issues such as moving houses, buying farmland, and distributing food and clothing to workers. With help from the Japanese military, the two villages merged to create "Kimitsu Town." The 1970 merger was influenced by the Yahata Steel Factory (now Nippon Steel Kimitsu Works), which moved into the coastal area during the 1960s. The factory increased property tax income for Kimitsu Town. However, if the population were too small, part of the tax would go to Chiba Prefecture. To prevent this, the town merged with other nearby areas to increase the population. At first, Kisarazu City was also part of the merger talks, and a new city name, "Kimitsu-Kisarazu City," was suggested. But since Kisarazu City did not agree, the plan was dropped. On September 28, 1970, five towns and villages merged to form the new "Kimitsu Town." After reaching the population requirements, Kimitsu Town became Kimitsu City on September 1, 1971, becoming the 25th city in Chiba Prefecture. ==Government==