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Kamiamakusa 上天草市
City
Kamiamakusa City hall
FlagEmblem
Location of Kami-Amakusa in Kumamoto Prefecture
KamiamakusaLocation in Japan
Coordinates: 32°35′15″N 130°25′50″E / 32.58750°N 130.43056°E / 32.58750; 130.43056
Country	Japan
Region	Kyushu
Prefecture	Kumamoto
Area
• Total	126.67 km (48.91 sq mi)
Population
• Total	23,824
• Density	190/km (490/sq mi)
Time zone	UTC+09:00 (JST)
City hall address	1514 Oyano-cho Kami, Kamiamakusa-shi, Kumamoto-ken 869-3692
Climate	Cfa
Website	Official website
Symbols
Bird	Warbling white-eye
Flower	Sakura
Tree	Pine

Kamiamakusa (上天草市, Kamiamakusa-shi) is a city located in Kumamoto Prefecture, Japan. As of 31 July 2024, the city had an estimated population of 23,824 in 11085 households, and a population density of 190 persons per km. The total area of the city is 126.67 km (48.91 sq mi).

Geography

Kamiamakusa covers the western coast of one of the two main islands, Kamishima (上島, "Upper Island") and ten smaller inhabited islands (including Ōyano-jima) and numerous uninhabited islets located the central-west Kumamoto Prefecture, in between the Yatsushiro Sea and the East China Sea. Parts of the city are within the borders of the Unzen-Amakusa National Park.

Neighboring municipalities

Kumamoto Prefecture

• Amakusa
• Uki

Climate

Kamiamakusa has a humid subtropical climate (Köppen climate classification Cfa) with hot, humid summers and cool winters. There is significant precipitation throughout the year, especially during June and July. The average annual temperature in Kamiamakusa is 16.8 °C (62.2 °F). The average annual rainfall is 2,019.9 mm (79.52 in) with June as the wettest month. The temperatures are highest on average in August, at around 27.5 °C (81.5 °F), and lowest in January, at around 6.5 °C (43.7 °F). The highest temperature ever recorded in Kamiamakusa was 37.2 °C (99.0 °F) on 13 August 2018; the coldest temperature ever recorded was −6.5 °C (20.3 °F) on 25 January 2016.

Demographics

Per Japanese census data, the population of Kamiamakusa in 2020 is 24,563 people. Kamiamakusa has been conducting censuses since 1920.

Historical population

Year Pop. ±% 1920 39,984 —     1925 39,622 −0.9% 1930 41,036 +3.6% 1935 42,157 +2.7% 1940 41,103 −2.5% 1945 54,951 +33.7% 1950 55,050 +0.2% 1955 53,921 −2.1% 1960 51,439 −4.6% 1965 47,914 −6.9% 1970 42,136 −12.1%	Year Pop. ±% 1975 41,541 −1.4% 1980 40,682 −2.1% 1985 39,900 −1.9% 1990 38,316 −4.0% 1995 36,667 −4.3% 2000 35,314 −3.7% 2005 32,502 −8.0% 2010 29,901 −8.0% 2015 27,006 −9.7% 2020 24,563 −9.0%
Graphs are unavailable due to technical issues. Updates on reimplementing the Graph extension, which will be known as the Chart extension, can be found on Phabricator and on MediaWiki.org.
Kami-Amakusa population statistics

History

The area of Kamiamakusa was part of ancient Higo Province, During the Edo Period it was tenryō territory under direct control of the Tokugawa shogunate and administered from the office of the Nagasaki bugyō.

The city of Kamiamakusa was established on March 31, 2004, from the merger of the towns of Himedo, Matsushima, Ōyano and Ryūgatake (all from Amakusa District).

Government

Kamiamakusa has a mayor-council form of government with a directly elected mayor and a unicameral city council of 16 members. Kamiamakusa contributes one member to the Kumamoto Prefectural Assembly. In terms of national politics, the city is part of the Kumamoto 4th district of the lower house of the Diet of Japan.

Economy

Kamiamakusa has a mixed economy dominated by agriculture, commercial fishing and light manufacturing. Tourism also plays a major role.

Education

Kamiamakusa has 11 public elementary schools and six public junior high schools operated by the city government and one public high school operated by the Kumamoto Prefectural Board of Education.

Transportation

Railways

Kamiamakusa has no passenger railway service. The nearest train station is Misumi Station on the JR Kyushu Misumi Line in Uki City.

Highways

• National Route 266
• National Route 324

Local attractions

• Five Bridges of Amakusa
• Unzen-Amakusa National Park

Notable people from Kamiamakusa

• Amakusa Shirō - The leader of the Shimabara Rebellion in 1638.

References

1. "Kamiamakusa City official statistics" (in Japanese). Japan.
2. ^ 気象庁 / 平年値（年・月ごとの値）. JMA. Retrieved April 16, 2022.
3. ^ 観測史上1～10位の値（年間を通じての値）. JMA. Retrieved April 16, 2022.
4. ^ Kami-Amakusa population statistics

External links

• Media related to Kamiamakusa, Kumamoto at Wikimedia Commons
• Kami-Amakusa City official website (in Japanese)

v t e Kumamoto Prefecture
Kumamoto (capital)
Kumamoto	Wards Chūō Higashi Kita Minami Nishi
Cities	Amakusa Arao Aso Hitoyoshi Kami-Amakusa Kikuchi Kōshi Minamata Tamana Uki Uto Yamaga Yatsushiro
Districts	Amakusa District Reihoku Ashikita District Ashikita Tsunagi Aso District Minamioguni Oguni Takamori Minamiaso Nishihara Ubuyama Kamimashiki District Kashima Kōsa Mashiki Mifune Yamato Kikuchi District Kikuyō Ōzu Kuma District Asagiri Nishiki Taragi Yunomae Itsuki Kuma Mizukami Sagara Yamae Shimomashiki District Misato Tamana District Gyokutō Nagasu Nagomi Nankan Yatsushiro District Hikawa
List of mergers in Kumamoto Prefecture

• Cities in Kumamoto Prefecture
• Kami-Amakusa, Kumamoto
• Populated coastal places in Japan