Kōza District, Kanagawa

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Map of Kōza District with Meiji period area in yellow, modern area in green

1 - Samukawa

Kōza District (高座郡 Kōza-gun?) is a district located in central Kanagawa Prefecture, Japan. It currently consists of only one town, Samukawa. The entire cities of Chigasaki, Fujisawa, Yamato, Ayase, Ebina, Zama; and parts of the city of Sagamihara, were formerly part of Kōza District.

As of 2009, the district has an estimated population of 47,812 and a density of 3,560 persons per km². The total area is 13.42 km².

Towns and villages[edit]

History[edit]

Historic Map of Kōza District

Kōza District was one of the ancient subdivisions of Sagami Province, extending from Sagami Bay north to the border of Musashi Province between the Sagami River and the Sakai River. It was mentioned in the Nihon Shoki records of 675 AD in the Nara period as Takakura District (高倉郡 Takakura-gun?). The provincial capital of Sagami Province and its kokubunji were located within Kōza District, although its exact location is today unknown.

The area was under the control of various shōen from the Heian period through the Sengoku period, and was held as tenryō territory administered by the Shogun under the Tokugawa Shogunate of the Edo period.

Timeline[edit]

After the Meiji Restoration, it was established as a district under the cadastral reform of 1878, with a district office built near what is now part of Chigasaki. This was moved to Fujisawa-Ōsaka Town (present-day Fujisawa) in 1906.

  • On April 1, 1889 Kōza District was divided into one town (Fujisawa-Ōsaka) and 22 villages. In 1908, Chigasaki Village became a town, as did Kamimizo in 1928, and Zama in 1937. Fujisawa became a city in 1940. Samukawa and Ebina became towns the same year. In 1941, Zama, Kamimizo and six neighboring villages merged to from the town of Sagamihara. Yamato became a town in 1943, Shibuya in 1944 and Ayase in 1945. Chigasaki became a city in 1947.
  • In 1948, Zama was separated from Sagamihara, which became a city in 1954.
  • The town of Shibuya dissolved in 1955, with the southern portions merging with Fujisawa, and the northern portion reverting to the status of village until absorbed by Yamato town in 1956. Yamato became a city in 1959, and both Ebina and Zama became cities in 1971, and Ayase in 1978, leaving Samukawa as the only remaining component of Kōza District.

Merger table[edit]

pre-1889 April 1, 1889 1889 - 1926 1926 - 1944 1945 - 1954 1955 - 1989 1989–Present Present
  Samukawa village Samukawa village November 1, 1940
Samukawa town
Samukawa town Samukawa town Samukawa town Samukawa
Chigasaki village October 1, 1908
Chigasaki town
Chigasaki town October 1, 1947
Chigasaki city
Chigasaki city Chigasaki city Chigasaki
Shorin village
Tsurumine village
Koide village Koide village Koide village Koide village April 5, 1955
merged with Chigasaki city
(except for Endo division)
April 5, 1955
merged with Fujisawa city
(Endo division)
Fujisawa city Fujisawa
Fujisawa-Ōsaka town Fujisawa-Ōsaka town April 1, 1908
Fujisawa town
October 1, 1940
Fujisawa city
Fujisawa city Fujisawa city
Kamakura District
Fujisawa-Ōtomi town
October 1, 1907
merge with Fujisawa-Ōsaka town
Kugenuma village Kugenuma village
Meiji village Meiji village
Mutsuai village Mutsuai village March 10, 1942
merge with Fujisawa city
Goshomi village Goshomi village Goshomi village Goshomi village April 5, 1955
merge with Fujisawa city
Shibuya village Shibuya village November 3, 1944
Shibuya town
Shibuya town April 5, 1955
merged with Fujisawa city
(southern portion)
April 5, 1955
Shibuya town
(northern portion)
September 1, 1956
merge with Yamato town
February 1, 1959
Yamato city
Yamato city Yamato
Tsurumi village September 25, 1891
Yamato village
November 3, 1943
Yamato town
Yamato town Yamato town
Ayase village Ayase village Ayase village April 1, 1945
Ayase town
November 1, 1978
Ayase city
Ayase city Ayase
Ebina village Ebina village December 20, 1940
Ebina town
Ebina town Ebina town November 1, 1971
Ebina city
Ebina city Ebina
Arima village Arima village Arima village Arima village April 20, 1955
merge with Ebina town
Zama village Zama village December 20, 1937
Zama town
April 29, 1941
Sagamihara town
September 1, 1948
Zama village
November 1, 1971
Zama city
Zama city Zama
Araiso village Araiso village Araiso village November 20, 1954
Sagamihara city
Sagamihara city Sagamihara city Sagamihara
Asamizo village Asamizo village Asamizo village
Tana village Tana village Tana village
Mizo village Mizo village January 1, 1928
Kamimizo town
Osawa village Osawa village Osawa village
Aihara village Aihara village Aihara village
Ono Village Ono Village Ono Village

Coordinates: 35°22′27″N 139°23′27″E / 35.37417°N 139.39083°E / 35.37417; 139.39083