# Naka District, Kanagawa

Naka District (中郡, Naka-gun) is a district located in central Kanagawa Prefecture, Japan. It currently consists of two towns, Ōiso, and Ninomiya. The majority of the area of the city of Hadano and the entire cities of Hiratsuka and Isehara were formerly part of Naka District.
As of 2009, the district had an estimated population of 62,522 and a density of 2,380 persons per km$^2$. The total area was 26.26 km$^2$.

## Towns and villages

* Ninomiya
* Ōiso

## History

Naka District was one of the four subdivisions of Sagami Province established by the later Hōjō clan of Odawara during the Sengoku period. In the Edo period, it was nominally part of Odawara Domain, although large portions were tenryō territory controlled by the shōgun in Edo through various hatamoto.

### Timeline

After the Meiji Restoration and with the establishment of the district system in 1878, the territory came under the control of Ōsumi District (大住郡, Ōsumi-gun) and Yurugi District (淘綾郡, Yurugi-gun). On March 26, 1896, these two districts were joined to form the modern Naka District, which initially consisted of five towns and 23 villages. Hiratsuka was elevated to city status in 1932, followed by Hadano in 1955 and Isehara in 1971.

### Merger table

| before 1889 | April 1, 1889 | 1889–1926 | 1926–1944 | 1926–1944 | 1926–1944 | 1945–1954 | 1945–1954 | 1955–1989 | 1955–1989 | 1989–Present | Present |
| Ashigarakami District | Ashigarakami Kamihadano village | Ashigarakami District Kamihadano village | Ashigarakami District Kamihadano village | Ashigarakami District Kamihadano village | Ashigarakami District Kamihadano village | Ashigarakami District Kamihadano village | Ashigarakami District Kamihadano village | July 28, 1955 Nishihadano town | January 1, 1963 merged into Hadano city | Hadano city | Hadano |
| Ōsumi District | Nishihadano village | Nishihadano village | Nishihadano village | Nishihadano village | Nishihadano village | Nishihadano village | Nishihadano village | | July 28, 1955 Nishihadano town | January 1, 1963 merged into Hadano city | Hadano city | Hadano |
| Ōsumi District | Hadano town | Hadano town | Hadano town | Hadano town | Hadano town | Hadano town | Hadano town | January 1, 1955 Hadano city | January 1, 1955 Hadano city | | Hadano city | Hadano |
| Ōsumi District | Kitahadano village | Kitahadano village | Kitahadano village | Kitahadano village | Kitahadano village | Kitahadano village | Kitahadano village | | January 1, 1955 Hadano city | January 1, 1955 Hadano city | Hadano city | Hadano |
| Ōsumi District | Higashihadano village | Higashihadano village | Higashihadano village | Higashihadano village | Higashihadano village | Higashihadano village | Higashihadano village | | January 1, 1955 Hadano city | January 1, 1955 Hadano city | Hadano city | Hadano |
| Ōsumi District | Minamihadano village | Minamihadano village | June 1, 1940 Minamihadano town | June 1, 1940 Minamihadano town | June 1, 1940 Minamihadano town | Minamihadano town | Minamihadano town | | January 1, 1955 Hadano city | January 1, 1955 Hadano city | Hadano city | Hadano |
| Ōsumi District | Ōne town | Ōne town | Ōne town | Ōne town | Ōne town | Ōne town | Ōne town | April 15, 1955 merged with Hadano city (except Sanada area) | April 15, 1955 merged with Hadano city (except Sanada area) | | Hadano city | Hadano |
| Ōsumi District | Ōne town | Ōne town | Ōne town | Ōne town | Ōne town | Ōne town | Ōne town | March 2, 1955 merged with Kaneda village (Sanada area) | October 1, 1957 merged into Hiratsuka city | Hiratsuka city | Hiratsuka |
| Ōsumi District | Kaname village | Kaname village | Kaname village | Kaname village | Kaname village | Kaname village | Kaname village | Kaname village | October 1, 1957 merged into Hiratsuka city | Hiratsuka city | Hiratsuka |
| Ōsumi District | Hiratsuka town | Hiratsuka town | Hiratsuka town | Hiratsuka town | April 1, 1932 Hiratsuka city | Hiratsuka city | Hiratsuka city | Hiratsuka city | Hiratsuka city | | Hiratsuka city | Hiratsuka |
| Ōsumi District | Suma village | Suma village | January 1, 1927 Suma town | April 1, 1929 merged into Hiratsuka town | April 1, 1932 Hiratsuka city | Hiratsuka city | Hiratsuka city | Hiratsuka city | Hiratsuka city | Hiratsuka city | Hiratsuka |
| Ōsumi District | Konaka village | April 1, 1909 Asahi village | Asahi village | Asahi village | Asahi village | July 15, 1954 merged into Hiratsuka city | July 15, 1954 merged into Hiratsuka city | | Hiratsuka city | Hiratsuka city | Hiratsuka city | Hiratsuka |
| Yurugi District | Yamashiro village | April 1, 1909 Asahi village | Asahi village | Asahi village | Asahi village | July 15, 1954 merged into Hiratsuka city | July 15, 1954 merged into Hiratsuka city | Hiratsuka city | Hiratsuka city | Hiratsuka city | Hiratsuka |
| Ōsumi District | Ōno village | Ōno village | February 11, 1944 Ōno town | February 11, 1944 Ōno town | February 11, 1944 Ōno town | Ōno town | Ōno town | Ōno town | September 30, 1956 merged into Hiratsuka city | Hiratsuka city | Hiratsuka |
| Ōsumi District | Toyoda village | Toyoda village | Toyoda village | Toyoda village | Toyoda village | Toyoda village | Toyoda village | April 1, 1956 merged into Ōno town | September 30, 1956 merged into Hiratsuka city | Hiratsuka city | Hiratsuka |
| Ōsumi District | Kanda village | Kanda village | Kanda village | Kanda village | Kanda village | Kanda village | Kanda village | September 30, 1956 merged into Hiratsuka city | September 30, 1956 merged into Hiratsuka city | | Hiratsuka city | Hiratsuka |
| Ōsumi District | Jōjima village | Jōjima village | Jōjima village | Jōjima village | Jōjima village | Jōjima village | Jōjima village | | September 30, 1956 merged into Hiratsuka city | September 30, 1956 merged into Hiratsuka city | Hiratsuka city | Hiratsuka |
| Ōsumi District | Kaneda village | Kaneda village | Kaneda village | Kaneda village | Kaneda village | Kaneda village | Kaneda village | | September 30, 1956 merged into Hiratsuka city | September 30, 1956 merged into Hiratsuka city | Hiratsuka city | Hiratsuka |
| Ōsumi District | Tsuchizawa village | Tsuchizawa village | Tsuchizawa village | Tsuchizawa village | Tsuchizawa village | Tsuchizawa village | Tsuchizawa village | | September 30, 1956 merged into Hiratsuka city | September 30, 1956 merged into Hiratsuka city | Hiratsuka city | Hiratsuka |
| Ōsumi District | Okazaki village | Okazaki village | Okazaki village | Okazaki village | Okazaki village | Okazaki village | Okazaki village | September 30, 1956 merged into Hiratsuka city (except Mawatari・Ōku areas) | September 30, 1956 merged into Hiratsuka city (except Mawatari・Ōku areas) | | Hiratsuka city | Hiratsuka |
| Ōsumi District | Okazaki village | Okazaki village | Okazaki village | Okazaki village | Okazaki village | Okazaki village | Okazaki village | September 30, 1956 merged into Isehara city (Mawatari・Ōku areas) | March 1, 1971 Isehara city | Isehara city | Isehara |
| Ōsumi District | Isehara town | Isehara town | Isehara town | Isehara town | Isehara town | December 1, 1954 Isehara town | December 1, 1954 Isehara town | Isehara town | March 1, 1971 Isehara city | Isehara city | Isehara |
| Ōsumi District | Naruse village | Naruse village | Naruse village | Naruse village | Naruse village | | | December 1, 1954 Isehara town | December 1, 1954 Isehara town | Isehara town | March 1, 1971 Isehara city | Isehara city | Isehara |
| Ōsumi District | Ōta village | Ōta village | Ōta village | Ōta village | Ōta village | | | December 1, 1954 Isehara town | December 1, 1954 Isehara town | Isehara town | March 1, 1971 Isehara city | Isehara city | Isehara |
| Ōsumi District | Takabeya village | Takabeya village | Takabeya village | Takabeya village | Takabeya village | | | December 1, 1954 Isehara town | December 1, 1954 Isehara town | Isehara town | March 1, 1971 Isehara city | Isehara city | Isehara |
| Ōsumi District | Ōyama town | Ōyama town | Ōyama town | Ōyama town | Ōyama town | | | December 1, 1954 Isehara town | December 1, 1954 Isehara town | Isehara town | March 1, 1971 Isehara city | Isehara city | Isehara |
| Ōsumi District | Hibita village | Hibita village | Hibita village | Hibita village | Hibita village | | | December 1, 1954 Isehara town | December 1, 1954 Isehara town | Isehara town | March 1, 1971 Isehara city | Isehara city | Isehara |
| Ōsumi District | Aikawa village | Aikawa village | Aikawa village | Aikawa village | Aikawa village | Aikawa village | Aikawa village | July 8, 1955 merged into Atsugi city | July 8, 1955 merged into Atsugi city | Atsugi city | Atsugi |
| Yurugi District | Ōiso town | Ōiso town | Ōiso town | Ōiso town | Ōiso town | Ōiso town | December 1, 1954 Ōiso town | Ōiso town | Ōiso town | Ōiso town | Ōiso |
| Yurugi District | Kokufu village | Kokufu village | Kokufu village | Kokufu village | Kokufu village | April 1, 1952 Kokufu town | December 1, 1954 Ōiso town | Ōiso town | Ōiso town | Ōiso town | Ōiso |
| Yurugi District | Azuma village | Azuma village | November 3, 1935 Ninomiya town | November 3, 1935 Ninomiya town | November 3, 1935 Ninomiya town | Ninomiya town | Ninomiya town | Ninomiya town | Ninomiya town | Ninomiya town | Ninomiya |
35°18′41″N 139°16′26″E﻿ / ﻿35.31139°N 139.27389°E﻿ / 35.31139; 139.27389