List of mergers in Ibaraki Prefecture
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Ibaraki Prefecture is a prefecture of Japan located in the Kantō region of Honshu. Ibaraki Prefecture has a population of 2,871,199 (1 June 2019) and has a geographic area of . Ibaraki Prefecture borders Fukushima Prefecture to the north, Tochigi Prefecture ...
, Japan since the Heisei era.


Mergers before April 1, 1999

* On September 1, 1995 - the town of Kashima absorbed the village of
Ōno ONO, Ono or Ōno may refer to: Places Fiji * Ono Island (Fiji) Israel * Kiryat Ono * Ono, Benjamin, ancient site Italy * Ono San Pietro Ivory Coast * Ono, Ivory Coast, a village in Comoé District Japan * Ōno Castle, Fukuoka * ...
(both from Kashima District) to create the city of Kashima.


Mergers from April 1, 1999 to Present

* On April 1, 2001 - the town of Itako absorbed the town of Ushibori (both from Namegata District) to create the city of Itako. * On February 2, 2002 - the town of Moriya (from Kitasōma District) was elevated to ''city status''. *On November 1, 2002 - the town of Kukizaki (from Inashiki District) were merged into the expanded city of
Tsukuba is a city located in Ibaraki Prefecture, Japan. , the city had an estimated population of 244,528 in 108,669 households and a population density of 862 persons per km². The percentage of the population aged over 65 was 20.3%. The total ar ...
. * On October 16, 2004 - the town of Yamagata, the village of Gozenyama (both from Higashiibaraki District), the town of
Ōmiya Ōmiya 大宮 is a Japanese word originally used for the imperial palace or shrines, now a common name, and may refer to: People *Ōmiya (surname), a Japanese surname *Ōmiya, or is a female character in ''The Tale of Genji'', an 11th-century nove ...
, and the villages of Miwa and
Ogawa Ogawa (written: lit. "small river" or in hiragana) is the 30th most common Japanese surname. Less common variants are (also "small river") or ("tail river"). Notable people with the surname include: *, American poet *, Japanese footballer * ...
(all from Naka District), were merged to create the city of Hitachiōmiya. * On November 1, 2004 - the town of Jūō (from Taga District) was merged into the expanded city of Hitachi. Taga District was dissolved as a result this merger. * On December 1, 2004 - the town of Kanasagō, and the village of Satomi and Suifu (all from Kuji District) were merged into the expanded city of Hitachiōta. * On January 21, 2005 - the town of Naka absorbed the town of Urizura (both from Naka District) to create the city of Naka. * On February 1, 2005 - the town of Jōhoku, the village of Katsura (both from Higashiibaraki District), and the village of Nanakai (from Nishiibaraki District) were merged to create the town of Shirosato. * Also on February 1, 2005 - the town of Uchihara (from Higashiibaraki District) was merged into the expanded city of
Mito Mito may refer to: Places *Mito, Ibaraki, capital city of Ibaraki Prefecture, Japan *Mito, Aichi, a Japanese town *Mito, Shimane, a Japanese town * Mitō, Yamaguchi, a Japanese town * Mito District, a district in the province of Concepción, Per ...
. * On March 22, 2005 - the towns of
Azuma Azuma may refer to: Places * Azuma, historical name for eastern Japan, now called Kantō region, Kantō and Tōhoku region * Azuma, Gunma (Agatsuma), former village in Agatsuma District, Gunma Prefecture, Japan * Azuma, Gunma (Sawa), former villag ...
, Edosaki and Shintone, and the village of Sakuragawa (all from Inashiki District) were merged to create the city of Inashiki. * Also on March 22, 2005 - the city of Iwai was merged with the town of Sashima (from Sashima District) to create the city of Bandō. * On March 28, 2005 - the town of Fujishiro (from Kitasōma District) was merged into the expanded city of
Toride file:Oohorinowatashi 001.JPG, 260px, Ohori-no-watashi is a Cities of Japan, city located in Ibaraki Prefecture, Japan. , the city had an estimated population of 104,329 in 44,755 households and a population density of 1492 persons per km². The p ...
. * Also on March 28, 2005 - the city of Shimodate was merged with the towns of Akeno,
Kyōwa was a after '' Kansei'' and before ''Bunka.'' This period spanned the years from February 1801 through February 1804.Nussbaum, Louis-Frédéric. (2005). "''Kyōwa''" ; n.b., Louis-Frédéric is pseudonym of Louis-Frédéric Nussbaum, ''see'Deu ...
and Sekijō (all from Makabe District) to create the city of Chikusei. * Also on March 28, 2005 - the town of Kasumigaura absorbed the town of Chiyoda (both from Niihari District) to create the city of Kasumigaura. * On August 1, 2005 - the town of Kamisu absorbed the town of Hasaki (both from Kashima District) to create the city of Kamisu. * On September 2, 2005 - the towns of Asō, Kitaura and Tamatsukuri (all from Namegata District) were merged to create the city of Namegata. Namegata District was dissolved as a result of this merger. * On September 12, 2005 - the old city of
Koga KOGA is a Dutch bicycle manufacturer based in Heerenveen, Friesland. The company is known for its long time partnership with Japanese frame manufacturer Miyata, producing bicycles and sponsoring racing teams under the brand name Koga Miyata. As ...
absorbed the towns of Sanwa and Sōwa (both from Sashima District) to create the new and expanded city of
Koga KOGA is a Dutch bicycle manufacturer based in Heerenveen, Friesland. The company is known for its long time partnership with Japanese frame manufacturer Miyata, producing bicycles and sponsoring racing teams under the brand name Koga Miyata. As ...
. * On October 1, 2005 - the town of Makabe, the village of
Yamato was originally the area around today's Sakurai City in Nara Prefecture of Japan, which became Yamato Province and by extension a name for the whole of Japan. Yamato is also the dynastic name of the ruling Imperial House of Japan. Japanese his ...
(both from Makabe District), and the town of Iwase (from Nishiibaraki District) were merged to create the city of Sakuragawa. Makabe District was dissolved as a result of this merger. * On October 1, 2005 - the old city of
Ishioka 260px, Ishioka City Hall is a city located in Ibaraki Prefecture, Japan. , the city had an estimated population of 72,351 in 28,291 households and a population density of 336 persons per km². The percentage of the population aged over 65 was ...
absorbed the town of Yasato (from Niihari District) to create the new and expanded city of
Ishioka 260px, Ishioka City Hall is a city located in Ibaraki Prefecture, Japan. , the city had an estimated population of 72,351 in 28,291 households and a population density of 336 persons per km². The percentage of the population aged over 65 was ...
. * On October 11, 2005 - the town of Hokota absorbed the villages of
Asahi Asahi (朝日, 旭, or あさひ) means "morning sun" in Japanese and may refer to: Cities * Asahi, Chiba (旭市; ''Asahi-shi'') Wards * Asahi-ku, Osaka (旭区; ''Asahi-ku'') * Asahi-ku, Yokohama (旭; ''Asahi-ku'') Towns * Asahi, Aichi (旭 ...
and Taiyō (all from Kashima District) to create the city of Hokota. Kashima District was dissolved as a result of this merger. * On January 1, 2006 - the old city of Shimotsuma absorbed the village of Chiyokawa (from Yūki District) to create the new and expanded city of Shimotsuma. * On January 1, 2006 - the town of Ishige (from Yūki District) was merged into the expanded city of '' Mitsukaido''. Mitsukaido changed the name to Jōsō at the same time. * On February 20, 2006 - the village of Niihari (from Niihari District) was merged into the expanded city of
Tsuchiura is a city located in Ibaraki Prefecture, Japan. , the city had an estimated population of 138,033 in 60,069 households and a population density of 1123 persons per km2. The percentage of the population aged over 65 was 29.7%. The total area of t ...
. * On March 19, 2006 - the towns of Iwama and Tomobe (both from Nishiibaraki District) were merged into the expanded city of Kasama. Nishiibaraki District was dissolved as a result of this merger. * On March 27, 2006 - the towns of
Ogawa Ogawa (written: lit. "small river" or in hiragana) is the 30th most common Japanese surname. Less common variants are (also "small river") or ("tail river"). Notable people with the surname include: *, American poet *, Japanese footballer * ...
and Minori (both from Higashiibaraki District), and the village of Tamari (from Niihari District) were merged to create the city of
Omitama 280px, Lake Kasumigaura from Omitama is a city located in Ibaraki Prefecture, Japan. , the city had an estimated population of 48,776 in 18,311 households and a population density of 337 persons per km². The percentage of the population aged ove ...
. Niihari District was dissolved as a result of this merger. * On March 27, 2006 - the town of Ina, and the village of
Yawara The ''yawara'' is a Japanese weapon used in various martial arts. Numerous types of jujutsu make use of a small rod, made of wood, that extends somewhat from both ends of a person's fist which is known as a ''yawara''. The ''yawara'' likely orig ...
(both from Tsukuba District) were merged to create the city of Tsukubamirai. Tsukuba District was dissolved as a result of this merger.


Planned/Future Mergers


References

{{Ibaraki Ibaraki