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Isahaya 諫早市 | |
|---|---|
 Isahaya City Hall | |
 Flag  Emblem | |
 Location of Isahaya in Nagasaki Prefecture | |
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  Isahaya Location in Japan | |
| Coordinates:32°50′36″N130°3′11″E / 32.84333°N 130.05306°E /32.84333; 130.05306 | |
| Country | Japan |
| Region | Kyushu |
| Prefecture | Nagasaki |
| Government | |
| • Mayor | Yukishige Okubo |
| Area | |
• Total | 341.79 km2 (131.97 sq mi) |
| Population (June 1, 2024) | |
• Total | 131,467 |
| • Density | 384.64/km2 (996.22/sq mi) |
| Time zone | UTC+09:00 (JST) |
| City hall address | 854-8601 |
| Website | Official website |
| Symbols | |
| Flower | Rhododendron |
| Tree | Euonymus hamiltonianus |
Isahaya (諫早市,Isahaya-shi) is acity located inNagasaki Prefecture, Japan. As of June 1, 2024, the city had an estimatedpopulation of 131,467 in 55169 households, and apopulation density of 380 people per km2.[1] The total area of the city is 341.79 km2 (131.97 sq mi).
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 ofShimabara Peninsula. The city area facesŌmura Bay in the northwest,Ariake Sea (Isahaya Bay) on the east and Tachibana Bay on the south. Majorland reclamation projects have occurred which added plains to theAriake Sea. 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.
Nagasaki Prefecture
Saga Prefecture
Isahaya has ahumid subtropical climate (KöppenCfa) 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.[2]
Per Japanese census data, the population of Isahaya is as shown below:
| Year | Pop. | ±% |
|---|---|---|
| 1940 | 79,974 | — |
| 1950 | 114,069 | +42.6% |
| 1960 | 110,965 | −2.7% |
| 1970 | 107,030 | −3.5% |
| 1980 | 127,339 | +19.0% |
| 1990 | 138,918 | +9.1% |
| 2000 | 144,299 | +3.9% |
| 2010 | 140,752 | −2.5% |
| 2020 | 133,852 | −4.9% |
Isahaya was part of ancientHizen Province. The place name of "Isahaya" appears in documents from theKamakura period. During theSengoku period, the area was controlled by a cadet branch of theRyūzōji clan. It was part of the holdings ofSaga Domain during theEdo Period. 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).[3]
On March 1, 2005, the towns ofTarami,Moriyama,Iimori,Takaki andKonagai (all fromKitatakaki 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.
Isahaya has amayor-council form of government with a directly elected mayor and aunicameral city council of 26 members. Isahaya contributes four members to the Nagasaki Prefectural Assembly. In terms of national politics, the city is part of theNagasaki 2nd district of thelower house of theDiet of Japan.
Due to its geographic location, Isahaya has long been a transportation nexus for Nagasaki prefecture. Numerousindustrial parks 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 is also important to the local economy.
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 privateNagasaki Wesleyan University is located in Isahaya.
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Shimabara Railway -Shimabara Railway Line
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