is a

city A city is a human settlement of a substantial size. The term "city" has different meanings around the world and in some places the settlement can be very small. Even where the term is limited to larger settlements, there is no universally agree ...

located in

Nagasaki Prefecture is a Prefectures of Japan, prefecture of Japan, mainly located on the island of Kyūshū, although it also includes a number of islands off Kyūshū's northwest coast - including Tsushima and Iki. Nagasaki Prefecture has a population of 1,246,4 ...

, Japan. As of June 1, 2024, the city had an estimated

population Population is a set of humans or other organisms in a given region or area. Governments conduct a census to quantify the resident population size within a given jurisdiction. The term is also applied to non-human animals, microorganisms, and pl ...

of 131,467 in 55169 households, and a

population density Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...

of 380 people per km². The total area of the city is

Geography

Located in the central part of Nagasaki Prefecture, Isahaya is surrounded by the ocean on three sides and the Tara mounts to the north. To the west is the base of the Nagasaki Peninsula and to the south is the base of

Shimabara Peninsula The is a peninsula located in Nagasaki Prefecture on the island of Kyushu, Japan. The peninsula incorporates the cities of Shimabara, Minamishimabara, and Unzen. The northern, eastern, and southeastern coasts of the peninsula face the Ariake ...

. The city area faces

Ōmura Bay is a bay located in the center of Nagasaki Prefecture, Japan in the East China Sea. Geography The bay measures about north-to-south and east-to-west. The length of the shoreline is about and the surface area is about . This corresponds wi ...

in the northwest,

Ariake Sea The is a body of salt water surrounded by Fukuoka, Saga, Nagasaki, and Kumamoto Prefectures, all of which lie on the island of Kyūshū in Japan. It is the largest bay in Kyūshū. Its deepest point is only about 50 meters (165 ft) deep, and ext ...

(Isahaya Bay) on the east and Tachibana Bay on the south. Major

land reclamation Land reclamation, often known as reclamation, and also known as land fill (not to be confused with a waste landfill), is the process of creating new Terrestrial ecoregion, land from oceans, list of seas, seas, Stream bed, riverbeds or lake ...

projects have occurred which added plains to the

. The biggest is the Isahaya Bay reclamation project (諫早湾干拓事業) by the Ministry of Agriculture, Forestry and Fisheries that started in 1989. Embankments and sluice gates were built and a total of 35 km2 has been reclaimed as of 2018. File:諫早市の衛星写真（国土地理院）.png, Satellite photograph of Isahaya City (provided by the

Geospatial Information Authority of Japan The , or GSI, is the national institution responsible for surveying and mapping the national land of Japan. The former name of the organization from 1949 until March 2010 was Geographical Survey Institute; despite the rename, it retains the same ...

) File:Isahaya_wan.jpg, Isahaya Bay (2012)

Surrounding municipalities

Nagasaki Prefecture *

Nagasaki , officially , is the capital and the largest Cities of Japan, city of Nagasaki Prefecture on the island of Kyushu in Japan. Founded by the Portuguese, the port of Portuguese_Nagasaki, Nagasaki became the sole Nanban trade, port used for tr ...

* Nagayo * Ōmura * Unzen Saga Prefecture * Tara

Climate

Isahaya has a

humid subtropical climate A humid subtropical climate is a subtropical -temperate climate type, characterized by long and hot summers, and cool to mild winters. These climates normally lie on the southeast side of all continents (except Antarctica), generally between ...

(Köppen ''Cfa'') characterized by warm summers and cool winters with light to no snowfall. The average annual temperature in Isahaya is 16.3 °C. The average annual rainfall is 2213 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.6 °C, and lowest in January, at around 6.5 °C.

Demographics

Per Japanese census data, the population of Isahaya is as shown below:

History

Isahaya was part of ancient

Hizen Province was an old provinces of Japan, old province of Japan in the area of the Saga Prefecture, Saga and Nagasaki Prefecture, Nagasaki prefectures. It was sometimes called , with Higo Province. Hizen bordered on the provinces of Chikuzen Province, Ch ...

. The place name of "Isahaya" appears in documents from the

Kamakura period The is a period of History of Japan, Japanese history that marks the governance by the Kamakura shogunate, officially established in 1192 in Kamakura, Kanagawa, Kamakura by the first ''shōgun'' Minamoto no Yoritomo after the conclusion of the G ...

. During the

Sengoku period The was the period in History of Japan, Japanese history in which civil wars and social upheavals took place almost continuously in the 15th and 16th centuries. The Kyōtoku incident (1454), Ōnin War (1467), or (1493) are generally chosen as th ...

, the area was controlled by a cadet branch of the

Ryūzōji clan was a Japanese kin group which traces its origin to Hizen Province on the island of Kyushu. Nussbaum, Louis-Frédéric. (2005)"Hōki"in ''Japan Encyclopedia'', p. 802. History The clan was founded by Fujiwara no Suekiyo in 1186. The clan was a ...

. It was part of the holdings of

Saga Domain was a Japanese domain of the Edo period Tokugawa Shogunate. It encompassed most of what are now Saga and Nagasaki Prefectures and was ruled from Saga Castle in what is now the urban center of the city of Saga. It was ruled through its histo ...

during the

Edo Period The , also known as the , is the period between 1600 or 1603 and 1868 in the history of Japan, when the country was under the rule of the Tokugawa shogunate and some 300 regional ''daimyo'', or feudal lords. Emerging from the chaos of the Sengok ...

. The town of Isahaya was established on April 1, 1889 with the creation of the modern municipalities system. On April 1, 1923, Isahaya annexed the villages of Isahaya and Kita-Isahaya. On September 1, 1940, it annexed the villages of Oguri, Ono, Yuki, Matsuyama, Motono, and Nagata to form the city of Isahaya. In July 1957, a severe downpour within Nagasaki caused a large flood in Isahaya, with over 500 casualties and 3500 injuries reported in Isahaya alone (

1957 Isahaya floods The 1957 Isahaya flood () was a series of floods occurring in the northwest part of the Japanese island of Kyushu, in and around Isahaya, Nagasaki Prefecture. Spanning 3 days, from July 25 to July 28, 1957, torrential rain brought floods and land ...

). On March 1, 2005, the towns of Tarami,

Moriyama 270px, Lake Biwa from Moriyama is a city located in Shiga Prefecture, Japan. , the city had an estimated population of 85,485 in 34,366 households and a population density of 1533.63 persons per km2. The total area of the city is . Geography Mo ...

, Iimori, Takaki and Konagai (all from Kitatakaki District) were merged to create the new and expanded city of Isahaya. The city was once part of Kitatakaki District, but due to this merger, the district has no more municipalities left and the district was officially dissolved.

Government

Isahaya has a mayor-council form of government with a directly elected mayor and a

unicameral Unicameralism (from ''uni''- "one" + Latin ''camera'' "chamber") is a type of legislature consisting of one house or assembly that legislates and votes as one. Unicameralism has become an increasingly common type of legislature, making up nearly ...

city council of 26 members. Isahaya contributes four members to the Nagasaki Prefectural Assembly. In terms of national politics, the city is part of the

Nagasaki 2nd district Nagasaki 2nd district is a constituency of the House of Representatives of Japan, House of Representatives in the Diet of Japan located in Nagasaki prefecture. The district covers a southern part of the prefecture as well as a few outlying island ...

of the

lower house A lower house is the lower chamber of a bicameral legislature, where the other chamber is the upper house. Although styled as "below" the upper house, in many legislatures worldwide, the lower house has come to wield more power or otherwise e ...

of the

Diet of Japan , transcription_name = ''Kokkai'' , legislature = 215th Session of the National Diet , coa_pic = Flag of Japan.svg , house_type = Bicameral , houses = , foundation=29 November 1890(), leader1_type ...

Economy

Due to its geographic location, Isahaya has long been a transportation nexus for Nagasaki prefecture. Numerous

industrial park An industrial park, also known as industrial estate or trading estate, is an area zoned and planned for the purpose of industrial development. An industrial park can be thought of as a more heavyweight version of a business park or office par ...

s have attracted advanced technology companies such as electronics and aerospace-related components. In addition, the eastern part has been reclaimed since ancient times, and it is the largest grain-producing area in the prefecture. Surrounded on three sides, the ocean,

commercial fishing Commercial fishing is the activity of catching fish and other seafood for Commerce, commercial Profit (economics), profit, mostly from wild fisheries. It provides a large quantity of food to many countries around the world, but those who practice ...

is also important to the local economy.

Education

Isahaya has 28 public elementary schools and 14 public junior high schools operated by the city government, and one junior high school operated by the Nagasaki Prefectural Board of Education. The prefecture also operates the five public high schools and one special education school for the handicapped. There are also one private junior high school and three private high schools. The private Nagasaki Wesleyan University is located in Isahaya.

Transportation

Railways

JR Kyushu The , also referred to as , is one of the seven constituent companies of Japan Railways Group (JR Group). It operates intercity rail services within Kyushu, Japan. It formerly operated the Beetle hydrofoil service across the Tsushima Strait be ...

Nishi Kyushu Shinkansen The is a Japanese Shinkansen high-speed rail line on the northwest part of Kyushu Island that is operated by the Kyushu Railway Company (JR Kyushu). The line is informally known as the Nagasaki Shinkansen. The section of the line between and ...

Nagasaki Main Line The , or simply known as the Nagasaki Line, is a railway line owned by the Kyushu Railway Company (JR Kyushu) connecting Tosu Station in Saga Prefecture to Nagasaki Station in Nagasaki Prefecture, Japan. There is a separate branch of this line ...

* - - - - - - - - -

(old line) * - -

Ōmura Line is a railway line in Nagasaki Prefecture, Japan, operated by the Kyushu Railway Company (JR Kyushu). It connects Haiki Station in Sasebo, Nagasaki, Sasebo to Isahaya Station in Isahaya, Nagasaki, Isahaya. From 1898 the line was part of the Nagas ...

Shimabara Railway -

Shimabara Railway Line The is a Japanese railway line connecting Isahaya Station, Isahaya and Shimabarakō. The line parallels the coast of Shimabara Peninsula, Nagasaki Prefecture. The third-sector railway company Shimabara Railway owns the line and also operate ...

* - - - - - - -

Highways

Nagasaki Expressway * * * *

Sister cities

Athens, Tennessee Athens is the county seat of McMinn County, Tennessee, United States and the principal city of the Athens Micropolitan Statistical Area has a population of 53,569. The city is located almost equidistantly between the major cities of Knoxville a ...

, United States *

Zhangzhou Zhangzhou (, ) is a prefecture-level city in Fujian Province, China. The prefecture around the city proper comprises the southeast corner of the province, facing the Taiwan Strait and (with Quanzhou) surrounding the prefecture of Xiamen. Nam ...

, China

References

External links

*
Isahaya City official website
{{Authority control Cities in Nagasaki Prefecture Isahaya, Nagasaki Populated coastal places in Japan