View of Mount Tsukuba and Tsukuba Center
Flag of Tsukuba
Official seal of Tsukuba
Location of Tsukuba in Ibaraki Prefecture
Location of Tsukuba in Ibaraki Prefecture
Tsukuba is located in Japan
Coordinates: 36°5′0.5″N 140°4′35.2″E / 36.083472°N 140.076444°E / 36.083472; 140.076444
First official recorded180 AD
Tsukuba town settledApril 1, 1889
Tsukuba city settledNovember 30, 1987
 • MayorTatsuo Igarashi (from November 2016)
 • Special city283.72 km2 (109.54 sq mi)
 (January 1, 2024)
 • Special city256,526
 • Density900/km2 (2,300/sq mi)
 • Metro
[1] (2015)
843,402 (19th)
Time zoneUTC+9 (Japan Standard Time)
Address2530-2 Karima, Tsukuba-shi, Ibaraki-ken 305-8555
WebsiteOfficial website
BirdUral owl
FlowerHoshizaki-yukinoshita (Saxifraga stolonifera Curtis f. aptera (Makino) H.Hara)
TreeJapanese zelkova
Tsukuba City Hall
One of the buildings at the University of Tsukuba
Tsukuba Express
Mount Tsukuba
Tsukuba Shrine

Tsukuba (つくば市, Tsukuba-shi) is a city located in Ibaraki Prefecture, Japan. As of January 1, 2024, the city had an estimated population of 256,526 in 121,001 households and a population density of 900 persons per km². The percentage of the population aged over 65 was 20.3%.[2] The total area of the city is 283.72 square kilometres (109.54 sq mi). It is known as the location of the Tsukuba Science City (筑波研究学園都市, Tsukuba Kenkyū Gakuen Toshi), a planned science park developed in the 1960s.


Tsukuba is located in southern Ibaraki Prefecture, approximately 50 kilometers from central Tokyo and about 40 kilometers from Narita International Airport. Mount Tsukuba, from which the city takes its name, is located in the northern part of the city. Except for the area around Mount Tsukuba, the city is a part of the Kantō Plain with an altitude of 20 to 30 meters.

Mountains: Mount Tsukuba, Mount Hokyo.

Rivers: Kokai River, Sakura River, Higashiyata River, Nishiyata River, Ono River, Hanamuro River, Inari River.

Parks: The city has more than 100 parks and green areas to relax in. Different parks are connected by pedestrian walk and bikeways. Some parks are equipped with tennis courts and round pavements for jogging and walking. Dōhō Park [ja], a park surrounded by vegetation centered in Dōhō Swamp, has a baseball field, a soccer field, a gym and a heated indoor pool equipped with a solar heating system. Matsumi Park [ja] has a 45m-high observation deck and a Japanese style garden with flowers and a small pond.

Gardens: Tsukuba Botanical Garden and Tsukuba Peony Garden.

In the extreme south is the Ushiku Lagoon; the Nishiyata, Higashiyata and Inari rivers discharge their waters into it. The Ushiku Lagoon, through the Yata River, flows into the Kokai River.

At the end of their courses, the Kokai River discharge into the Tone River, and the Sakura, Hanamuro and Ono rivers discharge into the Lake Kasumigaura.

Surrounding municipalities

Ibaraki Prefecture


Tsukuba has a humid continental climate (Köppen Cfa) characterized by warm summers and cool winters with light snowfall. The average annual temperature in Tsukuba is 14.3 °C (57.7 °F). The average annual rainfall is 1,326.0 mm (52.20 in) with September as the wettest month. The temperatures are highest on average in August, at around 25.9 °C (78.6 °F), and lowest in January, at around 3.1 °C (37.6 °F).[3]

Climate data for Tsukuba (1991−2020 normals, extremes 1921−present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 22.2
Mean daily maximum °C (°F) 9.3
Daily mean °C (°F) 3.1
Mean daily minimum °C (°F) −2.8
Record low °C (°F) −14.8
Average precipitation mm (inches) 50.6
Average snowfall cm (inches) 6
Average precipitation days (≥ 1.0 mm) 4.3 5.0 9.0 9.8 10.2 11.4 10.4 7.1 10.4 10.5 7.1 5.0 100.2
Average snowy days (≥ 1 cm) 1.3 1.3 0.3 0 0 0 0 0 0 0 0 0.2 3.1
Average relative humidity (%) 64 63 66 70 75 81 82 81 82 81 78 70 74
Mean monthly sunshine hours 206.8 181.8 182.6 181.4 182.8 129.3 152.8 182.8 136.4 138.4 153.6 185.7 2,014.5
Source 1: Japan Meteorological Agency[4][3]
Source 2: 理科年表


Per Japanese census data,[5] the population of Tsukuba has increased rapidly since 1980.

Historical population
1950 91,173—    
1960 82,423−9.6%
1970 78,110−5.2%
1980 127,402+63.1%
1990 168,466+32.2%
2000 191,814+13.9%
2010 214,590+11.9%
2020 241,656+12.6%


Mount Tsukuba has been a place of pilgrimage since at least the Heian period. During the Edo period, parts of what later became the city of Tsukuba were administered by a junior branch of the Hosokawa clan at Yatabe Domain, one of the feudal domains of the Tokugawa shogunate. With the creation of the modern municipalities system after the Meiji Restoration on April 1, 1889, the town Yatabe was established within Tsukuba District, Ibaraki.

Beginning in the 1960s, the area was designated for development. Construction of the city centre, the University of Tsukuba and 46 public basic scientific research laboratories began in the 1970s. Tsukuba Science City became operational in the 1980s. The Expo '85 world's fair was held in the area of Tsukuba Science City, which at the time was still divided administratively between several small towns and villages. Attractions at the event included the 85-metre (279 ft) Technocosmos, which at that time was the world's tallest Ferris wheel.[6]

On November 30, 1987 the town of Yatabe merged with the neighboring towns of Ōho and Toyosato (from Tsukuba District)) and the village of Sakura (from Niihari District) to create the city of Tsukuba. The neighboring town of Tsukuba merged with the city of Tsukuba on January 1, 1988. Followed by the town of Kukizaki (from Inashiki District) on November 1, 2002. Therefore, Yatabe, Ōho, Toyosato, Sakura, Tsukuba and Kukizaki, correspond to the ancient towns and villages.

By 2000, the city's 60 national research institutes and two national universities had been grouped into five zones: higher education and training, construction research, physical science and engineering research, biological and agricultural research, and common (public) facilities. These zones were surrounded by more than 240 private research facilities. Among the most prominent institutions are the University of Tsukuba (1973; formerly Tokyo University of Education); the High Energy Accelerator Research Organization (KEK); the National Institute of Advanced Industrial Science and Technology; the Electrotechnical Laboratory; the Mechanical Engineering Laboratory; and the National Institute for Materials Science. The city has an international flair, with about 7,500 foreign students and researchers from as many as 133 countries living in Tsukuba at any one time.

Over the past several decades, nearly half of Japan's public research and development budget has been spent in Tsukuba. Important scientific breakthroughs by its researchers include the identification and specification of the molecular structure of superconducting materials, the development of organic optical films that alter their electrical conductivity in response to changing light, and the creation of extreme low-pressure vacuum chambers[citation needed]. Tsukuba has become one of the world's key sites for government-industry collaborations in basic research. Earthquake safety, environmental degradation, studies of roadways, fermentation science, microbiology, and plant genetics are some of the broad research topics having close public-private partnerships.

On April 1, 2007 Tsukuba was designated a Special city with increased autonomy.

Following the Fukushima I nuclear accidents in 2011, evacuees from the accident zone reported that municipal officials in Tsukuba refused to allow them access to shelters in the city unless they presented certificates from the Fukushima government declaring that the evacuees were "radiation free".[7]

On May 6, 2012, Tsukuba was struck by a tornado that caused heavy damage to numerous structures and left approximately 20,000 residents without electricity. The storm killed one 14-year-old boy and injured 45 people. The tornado was rated an F-3 by the Japan Meteorological Agency, making it the most powerful tornado to ever hit Japan. Some spots had F-4 damage.[8]


Tsukuba has a mayor-council form of government with a directly elected mayor and a unicameral city council of 28 members. Tsukuba contributes five members to the Ibaraki Prefectural Assembly. In terms of national politics, the city is part of Ibaraki 6th district of the lower house of the Diet of Japan.


The local economy was traditionally based on rice production, and Tsukuba still has the largest area under paddy fields in Ibaraki Prefecture. After the establishment of Tsukuba Science City, the numerous government and private research institutes has drawn a large number of factories and supporting businesses.

Route in Tsukuba

Companies headquartered in Tsukuba



Higher education

Primary and secondary education

Tsukuba has 29 public elementary schools and 12 public middle schools operated by the city government, and four public high school operated by the Ibaraki Prefectural Board of Education. The prefecture also operates one combined middle school/high school and one special education school for the handicapped. There is also one private combined middle/high school.

In addition, it has international schools, like Tsukuba International School and Liberty International School, and also has a Brazilian school, the Instituto Educare (former Escola Pingo de Gente).[10]


Tsukuba Railway - Tsukuba Station Ruins. Tsukuba Railway, started 1918 suspended 1987
Tsukuba Express - Tsukuba Station


Metropolitan Intercity Railway CompanyTsukuba Express

Tsukuba Kankō Railway



Local attractions

Tsukuba Science City

Tsukuba Science City is a center for research and education in the city of Tsukuba, located northeast of Tokyo. The idea of constructing the science city was by the late Ichiro Kono, former minister of construction, and Kuniomi Umezawa, former vice minister of the science and technology agency.[11] Another key figure for the development of the Science City is Leo Esaki.[12] What sets Tsukuba apart from other town developments in Japan is the large scale and fast pace of its development into a place with high quality of scientific innovation.[12]


In September 1963, the national government of Japan, led by Ichiro Kono and Kniomi Umezawa, ordered the development of a science city in the area around the mountain Tsukuba.[11] Reasons behind this decision included the overcrowding in Tokyo, the overflow of applicants to Japanese elite universities, a desire of conservative politicians to decrease the influence of liberal teachers and students, and a need to catch up with the West in terms of scientific knowledge.[12] Furthermore, it was already clear that there was a demand for new research facilities and a fresh approach to university education. This fresh approach was prevalent in the United States; therefore, Japan's Ministry of Education decided to transfer a part of the Tokyo University of Education to the Tsukuba area. The campus of the university was modeled after the University of California, San Diego, campus.[12] After a new university structure was introduced; the power of teachers decreased and the power of administrative management increased. Furthermore, the new structure led to better research facilities, a separate independent research department and the implementation of a board for general policies and regulations.[11]

In 1966, after a few years of intensive study, the government started the project by buying land in the Tsukuba area.[11] The acquiring of land to build on was done by negotiation over prices between the government and landowners. The parcels of land with the most suitable price were purchased. This is reason for the odd shape of the government-owned land in Tsukuba; it is 18 kilometers long from north to east and 6 kilometers wide from east to west.[11] Due to this shape walking is not common in the city.[12]

The building of facilities started in June 1969. The initial building plan was ten years, but in 1980 it became clear that that would not be the case. However, in March 1980 all the facilities that were meant to be built were up and running to a certain extent.[11]

Between 1970 and 1980 researchers and their families started to move to Tsukuba. This move was a culture shock for the families from Tokyo due to the dirt roads and open fields in Tsukuba.[12]

Initially, Tsukuba was built for travel by car due to having no train station. It was actually Japan's first city that promoted automobile travel over public transport.[12] In 2005, a train station was built in the city.[13] The Tsukuba Express travels from Tokyo to the Science City in 45 minutes.[14]

Tsukuba Expo 1985

In order to promote the positive aspects of science and technology, an International Science and Technology Exposition was held. This was a landmark for the science city. The reasons behind the expo were to establish a positive national image of Tsukuba Science City and to gain international recognition that Tsukuba was a place of science. The Expo attracted around 20 million Japanese and foreign visitors.[12]

Leo Esaki

Leo Esaki became the president of the University of Tsukuba in 1992.[15] His presidency marked a new era of reform for the Tsukuba Science City. Leo Esaki is a Nobel prize winner and worked at IBM prior to becoming president of the University of Tsukuba. Unlike other Japanese university presidents he had no academic background and no former ties with the University of Tsukuba. This was part of the reason why he was chosen as president. Due to his history in the corporate world, he was able to create a climate were companies and graduate students could work together closely.[15] When the university was founded a good relationship between the students of the university and the nearby companies was expected. However, over the years this ambition disappeared into the background.[15] In these years there was a severe lack in interaction between the facilities of the University and the private companies in the area. This meant that there was no joint research happening.[16] In July 1994, Esaki introduced Tsukuba Advanced Research Alliance (TARA). This is a partnership between the university, foreign researchers, Tsukuba's national research labs, and corporate laboratories based in the city.[12]


Tsukuba Science City has faced considerable criticism since its inception. The first criticism on the city was that it was not habitable. Wives of the first researchers were used to putting garbage on the side of the road in order for it to get picked up. However, this was not the case in the mid-1970s. Until that time only farmers had lived there and they would process their own garbage into mulch. Because the garbage did not get picked up, it started smelling in the streets. This enraged the housewives and they demanded a garbage service. In order to meet the demand, a pit was dug where the waste could be dumped until a garbage service would be developed in the city. It is important to note that in the nineties Tsukuba had the most innovative garbage system of Japan.[12]

Another criticism levied by national government critics is that Tsukuba Science City is a waste of taxpayer's money. They also believe that Tsukuba is an example of government control of academic and research organization. In addition, social critics feel that Tsukuba's social organization is unfavorable as it lacks traditional Japanese culture.[12]

Garner describes the city is described as being ‘flat’ due to a lack of city life.[17] Even though Tsukuba Science City has an impressive number of research and development facilities and various companies, it still is not able to reach the same level of innovation as science cities that do have stimulating city life. In 2006, Tsukuba Science City started focusing on creating more city life to address this problem.[17]

Hirasawa Kangai ruins archaeological site
Hōjō pond (Hōjō Ōike) in spring


Other attractions

Sister city relations

Notable people from Tsukuba

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See also


  1. ^ "UEA Code Tables". Center for Spatial Information Science, University of Tokyo. Archived from the original on January 9, 2019. Retrieved January 26, 2019.
  2. ^ "Ibaraki prefectural official statistics" (in Japanese). Japan.[permanent dead link]
  3. ^ a b 気象庁 / 平年値(年・月ごとの値). JMA. Archived from the original on April 2, 2022. Retrieved April 2, 2022.
  4. ^ 観測史上1~10位の値(年間を通じての値). JMA. Archived from the original on April 2, 2022. Retrieved April 2, 2022.
  5. ^ "Tsukuba population statistics". Archived from the original on October 24, 2020. Retrieved November 15, 2020.
  6. ^ James W. Dearing (1995). Growing a Japanese Science City: Communication in Scientific Research. London: Routledge.
  7. ^ Jiji Press, "Tsukuba asked evacuees for radiation papers", Japan Times, 20 April 2011, p. 2.
  8. ^ "Tornado in Tsukuba rated as strongest ever : National : DAILY YOMIURI ONLINE (The Daily Yomiuri)". Archived from the original on June 15, 2012. Retrieved June 10, 2012.
  9. ^ "About Our Plant". Komori Corporation. 2019. Archived from the original on December 23, 2021. Retrieved December 30, 2019.
  10. ^ "Escolas Brasileiras Homologadas no Japão" (Archive). Embassy of Brazil in Tokyo. Retrieved on October 13, 2015.
  11. ^ a b c d e f Bloom, Justin L.; Asano, Shinsuke (1981). "Tsukuba Science City: Japan Tries Planned Innovation". Science. 212 (4500): 1239–1247. Bibcode:1981Sci...212.1239B. doi:10.1126/science.212.4500.1239. JSTOR 1685782. PMID 17738819.
  12. ^ a b c d e f g h i j k W., Dearing, James (1995). Growing a Japanese science city : communication in scientific research. London: Routledge. ISBN 9780203210581. OCLC 647375233.((cite book)): CS1 maint: multiple names: authors list (link)
  13. ^ Terada, Hirokazu (2013). データブック日本の私鉄 [Databook: Japan's Private Railways].. Japan: Neko Publishing. ISBN 9784777013364. OCLC 840099891.
  14. ^ "Tsukuba Express | JapanVisitor Japan Travel Guide". www.japanvisitor.com. Archived from the original on November 16, 2018. Retrieved October 30, 2018.
  15. ^ a b c Normile, Dennis (1994). "Leo Esaki: An Outsider Brings a Culture Change to Tsukuba". Science. 266 (5190): 1473–1474. Bibcode:1994Sci...266.1473N. doi:10.1126/science.266.5190.1473. JSTOR 2885161. PMID 17841701.
  16. ^ EDGINGTON, DAVID W. (1989). "New strategies for technology development in Japanese cities and regions". The Town Planning Review. 60 (1): 1–27. doi:10.3828/tpr.60.1.2348803u1n3m4324. JSTOR 27798156.
  17. ^ a b Garner, Cathy (2006). "Viewpoint: Science Cities: refreshing the concept for 21 st-century places". The Town Planning Review. 77 (5): i–vi. doi:10.3828/tpr.77.5.1. JSTOR 41229022.
  18. ^ "A Message from the Peace Commission: Information on Cambridge's Sister Cities," Archived 2017-06-30 at the Wayback Machine February 15, 2008. Retrieved 2008-10-12.
  19. ^ Richard Thompson. "Looking to strengthen family ties with 'sister cities'," Archived 2016-03-03 at the Wayback Machine Boston Globe, October 12, 2008. Retrieved 2008-10-12.
  20. ^ 友好城市 [Friendly cities]. Foreign Affairs Office of Shenzhen. March 22, 2008. Archived from the original on July 19, 2014. Retrieved August 7, 2013.
  21. ^ 国际友好城市一览表 [International Friendship Cities List]. Foreign Affairs Office of Shenzhen. January 20, 2011. Archived from the original on November 13, 2013. Retrieved August 7, 2013.
  22. ^ 友好交流 [Friendly exchanges]. Foreign Affairs Office of Shenzhen. September 13, 2011. Archived from the original on November 12, 2014. Retrieved August 7, 2013.
  23. ^ "University of Tsukuba Prospectus Leo Esaki". Retrieved February 28, 2013.[permanent dead link]
  24. ^ 「補償金もDRMも必要ない」――音楽家 平沢進氏の提言 (1/4) (in Japanese). ITmedia. Archived from the original on February 8, 2012. Retrieved February 3, 2013.
  25. ^ "University of Tsukuba Prospectus Hideki Shirakawa". Retrieved February 28, 2013.[permanent dead link]
  26. ^ Helm, Leslie (July 13, 1991). "Translator of 'Satanic Verses' Slain : Japan: The stabbing of a scholar at a campus near Tokyo may be related to Salman Rushdie's controversial novel". Los Angeles Times. Archived from the original on December 20, 2017. Retrieved January 24, 2023.