Ibara, Okayama
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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
Okayama Prefecture is a Prefectures of Japan, prefecture of Japan located in the Chūgoku region of Honshu. Okayama Prefecture has a population of 1,826,059 (1 February 2025) and has a geographic area of 7,114 Square kilometre, km2 (2,746 sq mi). Okayama Prefecture ...
,
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 37,835 in 16,677 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 160 persons per km2. The total area of the city is .


Geography

Ibara is located in west-central Okayama Prefecture. The Oda River, a tributary of the
Takahashi River The is a Class A major river in the western part of Okayama Prefecture. It acts as the main drainage for the Takahashi River Drainage System, and is one of the three main drainage rivers in Okayama Prefecture (the others being the Yoshii River a ...
, flows from north to south from Hiroshima Prefecture, and changes its flow eastward in the center of the city. It forms a basin sandwiched between mountains and hills to the north and south, which is where the main urban concentration of the city is located. The northern part of the city has numerous hamlets villages spread out on a limestone
karst Karst () is a topography formed from the dissolution of soluble carbonate rocks such as limestone and Dolomite (rock), dolomite. It is characterized by features like poljes above and drainage systems with sinkholes and caves underground. Ther ...
plateau at an elevation of 400 to 500 meters.


Adjoining municipalities

Hiroshima Prefecture * Fukiyama * Jinsekikōgen
Okayama Prefecture is a Prefectures of Japan, prefecture of Japan located in the Chūgoku region of Honshu. Okayama Prefecture has a population of 1,826,059 (1 February 2025) and has a geographic area of 7,114 Square kilometre, km2 (2,746 sq mi). Okayama Prefecture ...
* Kasaoka *
Sōja file:Bitchu Kokubunji, zenkei.jpg, 270px, Bitchū Kokubun-ji is a Cities of Japan, city located in Okayama Prefecture, Japan. , the city had an estimated population of 69,428 and a population density of 330 persons per km2. The total area of the ...
*
Takahashi is the third most common Japanese surname. Less common variants include , , , , , , , and . Notable people with the surname Takahashi * Aaron Takahashi, Japanese-American actor * , Japanese singer and actress * , Japanese kickboxer * , Jap ...
* Yakage


Climate

Ibara 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 climate classification The Köppen climate classification divides Earth climates into five main climate groups, with each group being divided based on patterns of seasonal precipitation and temperature. The five main groups are ''A'' (tropical), ''B'' (arid), ''C'' (te ...
''Cfa'') with very warm summers and cool winters. The average annual temperature in Ibara is 15.1 °C. The average annual rainfall is 1289 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.8 °C, and lowest in January, at around 4.3 °C.


Demographics

Per Japanese census data,Ibara population statistics
/ref> the population of Ibara is as follows.


History

The Ibara area is part of ancient Bitchū Province and was the site of a ''
shōen A was a field or Manorialism, manor in Japan. The Japanese language, Japanese term comes from the Tang dynasty Chinese language, Chinese term "莊園" (Mandarin: ''zhuāngyuán'', Cantonese: ''zong1 jyun4''). Shōen, from about the 8th to th ...
'' landed estate ruled by the Nasu clan. In the
Muromachi period The , also known as the , is a division of Japanese history running from approximately 1336 to 1573. The period marks the governance of the Muromachi or Ashikaga shogunate ( or ), which was officially established in 1338 by the first Muromachi ...
, the lord of Ibara-shō, Ise Moritoki, went to
Suruga Province was an Provinces of Japan, old province in the area that is today the central part of Shizuoka Prefecture. Suruga bordered on Izu Province, Izu, Kai Province, Kai, Sagami Province, Sagami, Shinano Province, Shinano, and Tōtōmi Province, Tōtōm ...
in 1476 to assist his nephew
Imagawa Ujichika was a Japanese ''daimyō'' of the Sengoku period. He was the 10th head of the Imagawa clan of Suruga Province. Ujichika was the son of Imagawa Yoshitada. He was the husband of Jukei-ni. Biography In 1476, Ujichika father, Yoshitada, invaded ...
succeed to the head of the
Imagawa clan was a Japanese samurai clan that claimed descent from the Seiwa Genji by way of the Kawachi Genji. It was a branch of the Minamoto clan by the Ashikaga clan. Origins Ashikaga Kuniuji, grandson of Ashikaga Yoshiuji, established himself in ...
. Ise Moritoki later changed his name to Hōjō Sōun and seized control of the
Kanto region Japanese Kanto is a simplified spelling of , a Japanese word, only omitting the diacritics. In Japan Kantō may refer to: *Kantō Plain *Kantō region * Kantō-kai, organized crime group * Kanto (Pokémon), a geographical region in the ''Pokém ...
from his stronghold at
Odawara Castle is a reconstructed Japanese castle in the city of Odawara in Kanagawa Prefecture, Japan. The current donjon (keep) was constructed out of reinforced concrete in 1960 on a stone foundation of the former donjon, torn down from 1870–1872 ...
. 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 ...
, it was largely divided between the holdings of
Fukuyama Domain file:Abe Masahiro Portrait.png, 270px, Abe Masahiro 7th daimyo of Fukuyama was a Han (Japan), feudal domain under the Tokugawa shogunate of Edo period Japan, in what is now southeastern Hiroshima Prefecture. It controlled much of Bingo Province ...
and direct territory of the shogunate. 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 area was organized into villages within Shitsuki District, Okayama with the creation of the modern municipalities system on April 1, 1889. Ibara was elevated to town status on February 26, 1896. The city of Ibara was established on March 30, 1953, from the merger of the three towns of Ibara, Nishiebara, and Takaya and the five villages of Ebara, Kinoko, Kenshu, Aono, Yamanoue plus the villages of Itakura and Oe from
Oda District, Okayama is a district located in Okayama Prefecture, Japan. As of 2003, the district has an estimated population of 21,285 and a population density Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) ...
. (Akaiwa), Yoshii (all from Akaiwa District, Okayama, Akaiwa District). On March 1, 2005, the town of Yoshii (from Shitsuki District), and the town of Bisei (from Oda District) were merged into Ibara.


Government

Ibara 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 18 members. Ibara, together with the municipalities of Oda District, contributes two members to the Okayama Prefectural Assembly. In terms of national politics, the city is part of the Okayama 3rd 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

Then economy of Ibara is primarily based on light industry. Textiles, automobile parts, electronic parts, food container manufacturing, mining, are major contributors. Ihara Seiki, an automobile parts manufacturer, is headquartered in Ibara.


Education

Ibara has 13 public elementary schools, five public junior high schools and one public high school operated by the city government, and one public high school operated by the Okayama Prefectural Board of Education. There is also one private high school.


Transportation


Railway

Ibara Railway Company - Ibara Line * - - -


Highways

* San'yō Expressway * *


Sister cities

Ibara is twinned with: *
Uozu, Toyama is a Cities of Japan, city in the eastern part of Toyama Prefecture, Japan. , the city had an estimated population of 42,224 in 16,811 households and a population density of 210 persons per km2. Its total area was . Geography Uozu lies in be ...
, Japan (1982) * Ōtawara, Tochigi, Japan (1984)


Local attractions

*Bisei Astronomical Observatory *Chūsei Yumegahara, a theme park with a faux medieval mountain village and handicraft shops. *Denchū Art Museum, centered on the works of sculptor Hirakushi Denchū (1872–1979), who was born in Nishiebara (now part of Ibara)


Notable people from Ibara

*
Kanzō Uchiyama , also known with his Chinese name (), was the proprietor of the Uchiyama Bookstore, whose frequent visitors were both Chinese and Japanese intellectuals before World War II. Uchiyama was a Christianity in Japan, Christian. Biography Early li ...
, Christian intellectual


References


External links

*
Ibara City official website
{{Authority control Cities in Okayama Prefecture Ibara, Okayama