is one of the 18 wards of the city of Yokohama in Kanagawa Prefecture, Japan. As of 2010, the ward had an estimated population of 273,418 and a density of 7,640 persons per km<sup>2</sup>. The total area is 35.70 km<sup>2</sup>.
Totsuka Ward is located in eastern Kanagawa Prefecture, and in the center-western area of the city of Yokohama. The area is largely flatland, with scattered small hills. The Kashio River passes through the ward.
The area around present-day Totsuka Ward has been inhabited for thousands of years. Archaeologists have found ceramic shards from the JÃ Âmon period at numerous locations in the area. There are numerous keyhole tombs from the Kofun period in Totsuka, including one on the grounds of Tomizuka Hachiman Shrine, from which the ward's name is derived.
Under the Nara period Ritsuryà  system, it became part of Kamakura District and Kà Âza District in Sagami Province. By the Heian period, it was part of a shà Âen controlled by the Sudà  clan, but came under the control of the Kamakura clan (of which Kamakura Gongorà  Kagemasa was the most illustrious member) by the start of the Kamakura period. During the Kamakura period, it was largely farmland, supporting the population of nearby Kamakura; however, by the Muromachi period, it had become a contested territory divided between the Hatakeyama clan, Miura clan, Oba clan, and others until their territories were seized by the Later Hà Âjà  clan from Odawara in the late Sengoku period. After the defeat of the Hà Âjà  at the Battle of Odawara, the territory came under the control of Tokugawa Ieyasu. It was administered as tenryà  territory controlled directly by the Tokugawa shogunate, but administered through various hatamoto. The area prospered in the Edo period as Totsuka-juku, a post station on the Tà Âkaidà  connecting Edo with Kyoto.
After the Meiji Restoration, the area was transferred to the new Kanagawa Prefecture, with Totsuka-shuku becoming the capital of the Kamakura District. Totsuka Town was established in the cadastral reform of April 1, 1889, two years after the completion of Totsuka Station on the Tà Âkaidà  Main Line railway connecting Tokyo with Osaka. During the Meiji period, the area prospered as a center of meat production to supply the foreign population of nearby Yokohama. In April 1939, Totsuka and neighboring villages were annexed by the neighboring city of Yokohama, becoming Totsuka Ward. In 1944, the Imperial Japanese Navy established a medical school and large scale hospital facilities in Totsuka. In 1966, Seya Ward was separated from Totsuka. In a major administrative reorganization of 1986, Izumi Ward and Sakae Ward were also separated from Totsuka.
Totsuka is largely a regional commercial center and bedroom community for central Yokohama and Tokyo. Totsuka retains a relatively strong industrial base. In 2010, 160 factories in the ward employed 12,010 employees, and their shipment amounted to 399 billion yen.
There are major factories in the area operated by Koito, Hitachi, Nissin Foods, Yamazaki Baking, Pola Cosmetics, and others.
Colleges and Universities:
Kanagawa Prefectural Board of Education operates prefectural senior high schools:
operates the following municipal high school:
Private secondary school:
The municipal board of education operates municipal elementary schools and junior high schools.
Junior high schools:
Additionally, Ryokuen Gakuen (), a combined elementary and junior high school outside of Totsuka-ku, has an attendance zone including parts of Totsuka-ku.
Elementary schools:
Former elementary schools:
Additionally, Kosugaya Elementary School (å°Âè ã±谷å°Âå¦校), Kuzuno Elementary School (èÂÂéÂÂå°Âå¦校), Mutsukawa Nishi Elementary School (å Âã¤å·Â西å°Âå¦校), and Toyoda Elementary School (è±Âç°å°Âå¦校), outside of Totsuka-ku, have attendance zones including parts of Totsuka-ku.