270px, Tsukumi Port and cement plants 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

Ōita Prefecture is a prefecture of Japan located on the island of Kyūshū. Ōita Prefecture has a population of 1,081,646 (1 February 2025) and has a geographic area of 6,340 km2 (2,448 sq mi). Ōita Prefecture borders Fukuoka Prefecture to the northwest, K ...

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

. , 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 15,492 in 7,666 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 190 persons per km². The total area of the city is . Although it has the smallest population among the cities in Ōita Prefecture, it has the third highest population density after Ōita City and Beppu City.

Geography

Tsukumi is located in southeastern Ōita Prefecture, approximately 30 kilometers southeast of the prefectural capital at Ōita City. The eastern side faces the

Bungo Channel The is a strait separating the Japanese islands of Kyushu and Shikoku. It connects the Philippine Sea and the Seto Inland Sea on the western end of Shikoku. The narrowest part of this channel is the Hōyo Strait. In the English-speaking world, ...

and surrounds Tsukumi Bay, which is part of the Bungo Channel, from three sides, and the northern half of the Youra Peninsula on the south side of the bay and the southern half of the Nagame Peninsula on the north side.

Neighboring municipalities

* Saiki * Usuki

Climate

Tsukumi 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 Tsukumi is 15.6 °C. The average annual rainfall is 1759 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.1 °C, and lowest in January, at around 5.5 °C.Tsukumi climate: Average Temperature, weather by month
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Demographics

Per Japanese census data, the population of Tsukumi has declined in recent decades.

History

The area of Tsukumi was part of ancient

Bungo Province was a province of Japan in the area of eastern Kyūshū, corresponding to most of modern Ōita Prefecture, except what is now the cities of Nakatsu and Usa. Bungo bordered on Hyūga to the south, Higo and Chikugo to the west, and Chikuze ...

. According to legend

Emperor Jimmu was the legendary first emperor of Japan according to the and . His ascension is traditionally dated as 660 BC.Kelly, Charles F"Kofun Culture"mandarin orange A mandarin orange (''Citrus reticulata''), often simply called mandarin, is a small, rounded citrus tree fruit. Treated as a distinct species of orange, it is usually eaten plain or in fruit salads. The mandarin is small and oblate, unlike the ...

s to the people. Historical records indicate that mandarin oranges were cultivated in the area from around 740 AD. 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 area was divided between Usuki Domain and Saiki Domain. Following the

Meiji restoration The , referred to at the time as the , and also known as the Meiji Renovation, Revolution, Regeneration, Reform, or Renewal, was a political event that restored Imperial House of Japan, imperial rule to Japan in 1868 under Emperor Meiji. Althoug ...

, the village of Tsukumi (津組村) within

Minamiamabe District, Ōita was a district located in Ōita Prefecture, Japan. As of 2003, the district had an estimated population of 33,239 and the density of 47.09 persons per km2. The total area was 705.90 km2. Towns and villages * Honjō * Kamae * Kamiura * N ...

was established on May 1, 1889 with the creation of the modern municipalities system. It was raised to town status on January 1, 1921, changing the ''

kanji are logographic Chinese characters, adapted from Chinese family of scripts, Chinese script, used in the writing of Japanese language, Japanese. They were made a major part of the Japanese writing system during the time of Old Japanese and are ...

'' of its name to the present characters. It was raised to city status on April 1, 1951.

Government

Tsukumi 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 12 members. Tsukumi contributes one member to the Ōita Prefectural Assembly. In terms of national politics, the city is part of the Ōita 2nd district 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

The economy of Tsukumi is center around limestone quarries and cement manufacturing. West of the city is the Todaka Mine, one the biggest

limestone Limestone is a type of carbonate rock, carbonate sedimentary rock which is the main source of the material Lime (material), lime. It is composed mostly of the minerals calcite and aragonite, which are different Polymorphism (materials science) ...

quarries in Japan. The limestone is used in the Tsukumi cement plant owned by the Taiheiyo Cement Corporation.

Education

Tsukumi has five public elementary schools and three public junior high schools operated by the city government. The city has one public high school operated by the Ōita Prefectural Board of Education.

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 ...

Nippō Main Line The is a railway line in Kyushu, in southern Japan, operated by Kyushu Railway Company (JR Kyushu). Also known as the Fukuhoku Nippo Line, The line connects Kokura Station in Kitakyushu, Fukuoka, and Kagoshima Station in Kagoshima, Kagoshima, K ...

* -

Highways

Notable people from Tsukumi

Yasuei Yakushiji is a former professional boxer who fought in the bantamweight division. He successfully defended the WBC bantamweight title four times during his career. Biography Yakushiji began boxing under influence of his father, who was an amateur boxe ...

, former professional boxer

References

External links

*
Tsukumi City official website
Cities in Ōita Prefecture Port settlements in Japan Populated coastal places in Japan {{Oita-geo-stub