Aichi Prefecture
Japanese transcription(s)
 • Japanese愛知県
 • RōmajiAichi-ken
Atsuta Shrine.jpg
Clockwise from top:
Flag of Aichi Prefecture
Official logo of Aichi Prefecture
Anthem: Warera ga Aichi
Location of Aichi Prefecture
Coordinates: 35°10′43″N 136°54′50″E / 35.17861°N 136.91389°E / 35.17861; 136.91389Coordinates: 35°10′43″N 136°54′50″E / 35.17861°N 136.91389°E / 35.17861; 136.91389
Country Japan
RegionChūbu (Tōkai)
SubdivisionsDistricts: 7, Municipalities: 54
 • GovernorHideaki Ōmura (since February 2011)
 • Total5,172.92 km2 (1,997.28 sq mi)
 • Rank27th
 (1 October 2019)
 • Total7,552,873
 • Rank4th
 • Density1,500/km2 (3,800/sq mi)
ISO 3166 codeJP-23
Symbols of Japan
BirdOriental scops owl (Otus sunia japonicus)
FishKuruma prawn (Penaeus japonicus)
FlowerKakitsubata (Iris laevigata)
TreeHananoki (Acer pycnanthum)

Aichi Prefecture (愛知県, Aichi-ken, Japanese pronunciation: [aitɕi̥ꜜkeɴ]) is a prefecture of Japan located in the Chūbu region of Honshū.[1]: 11, 126  Aichi Prefecture has a population of 7,552,873 (as of 1 October 2019) and a geographic area of 5,172.92 square kilometres (1,997.28 sq mi) with a population density of 1,460 inhabitants per square kilometre (3,800/sq mi). Aichi Prefecture borders Mie Prefecture to the west, Gifu Prefecture and Nagano Prefecture to the north, and Shizuoka Prefecture to the east.


Nagoya is the capital and largest city of Aichi Prefecture, and the fourth-largest city in Japan, with other major cities including Toyota, Okazaki, and Ichinomiya. Aichi Prefecture and Nagoya form the core of the Chūkyō metropolitan area, the third-largest metropolitan area in Japan and one of the largest metropolitan areas in the world.[1]: 685  Aichi Prefecture is located on Japan's Pacific Ocean coast and forms part of the Tōkai region, a subregion of the Chūbu region and Kansai region. Aichi Prefecture is home to the Toyota Motor Corporation. Aichi Prefecture had many locations with the Higashiyama Zoo and Botanical Gardens, The Chubu Centrair International Airport, and the Legoland Japan Resort.


Map of Aichi Prefecture     Government Ordinance Designated City      City      Town      Village
Map of Aichi Prefecture
     Government Ordinance Designated City      City      Town      Village
Aichi Prefectural Government Office
Satellite photo of Mikawa Bay
Satellite photo of Mikawa Bay

Located near the center of the Japanese main island of Honshu, Aichi Prefecture faces the Ise and Mikawa Bays to the south and borders Shizuoka Prefecture to the east, Nagano Prefecture to the northeast, Gifu Prefecture to the north, and Mie Prefecture to the west. It measures 106 km (66 mi) east to west and 94 km (58 mi) south to north and forms a major portion of the Nōbi Plain. With an area of 5,172.48 square kilometres (1,997.11 sq mi) it accounts for approximately 1.36% of the total surface area of Japan. The highest spot is Chausuyama at 1,415 m (4,642 ft) above sea level.

The western part of the prefecture is dominated by Nagoya, Japan's third largest city, and its suburbs, while the eastern part is less densely populated but still contains several major industrial centers. Due to its robust economy, for the period from October 2005 to October 2006, Aichi was the fastest growing prefecture in terms of population, beating Tokyo, at 7.4% and around with after Saitama Prefecture.

As of 1 April 2012, 23% of the total land area of the prefecture was designated as Natural Parks, namely the Aichi Kōgen, Hida-Kisogawa, Mikawa Wan, and Tenryū-Okumikawa Quasi-National Parks along with seven Prefectural Natural Parks.[2]


See also: List of cities in Aichi Prefecture by population

Thirty-eight cities are located in Aichi Prefecture.

Towns and villages

These are the towns and villages in each district:


Aichi prefecture population pyramid in 2020
Aichi prefecture population pyramid in 2020
Historical population
YearPop.±% p.a.
Source: Statistics Bureau, Ministry of Internal Affairs and Communications[3]

As of 2001, Aichi Prefecture's population was 50.03% male and 49.97% female. 139,540 residents (nearly 2% of the population) are of foreign nationality.

Population by age (2001)

Age % population % male % female
0–9 10.21 10.45 9.96
10–19 10.75 11.02 10.48
20–29 15.23 15.71 14.75
30–39 14.81 15.31 14.30
40–49 12.21 12.41 12.01
50–59 15.22 15.31 15.12
60–69 11.31 11.22 11.41
70–79 6.76 6.01 7.52
Over 80 3.12 2.01 4.23
Unknown 0.38 0.54 0.23


Main article: List of mergers in Aichi Prefecture


See also: Historic Sites of Aichi Prefecture

Originally, the region was divided into two provinces of Owari and Mikawa.[1]: 780  After the Meiji Restoration, Owari and Mikawa were united into a single entity. In 1871, after the abolition of the han system, Owari, with the exception of the Chita Peninsula, was established as Nagoya Prefecture, while Mikawa combined with the Chita Peninsula and formed Nukata Prefecture. Nagoya Prefecture was renamed to Aichi Prefecture in April 1872 and was united with Nukata Prefecture on November 27 of the same year.

The government of Aichi Prefecture is located in the Aichi Prefectural Government Office in Nagoya, which is the old capital of Owari. The Aichi Prefectural Police and its predecessor organisations have been responsible for law enforcement in the prefecture since 1871.

The Expo 2005 World Exposition was held in Seto and Nagakute.


In the third volume of the Man'yōshū there is a poem by Takechi Kurohito that reads: "The cry of the crane, calling to Sakurada; it sounds like the tide, draining from Ayuchi flats, hearing the crane cry". Ayuchi is the original form of the name Aichi, and the Fujimae tidal flat is all that remains of the earlier Ayuchi-gata. It is now a protected area.[4][5]

For a time, an Aichi Station existed on the Kansai Line (at the time the Kansai Railway) between Nagoya and Hatta stations, but its role was overtaken by Sasashima-raibu Station on the Aonami Line and Komeno Station on the Kintetsu Nagoya Line.


Chūkyō Metropolitan Area

Gross domestic product (2018) is the second largest in Japan, the shipment value of manufactured goods (2018) is the first in Japan, annual product sales (2019) is the third largest in Japan, and it's agricultural output (2018) is eighth in Japan. Aichi's agriculture industry and commerce are all ranked high in Japan, and the industrial structure is well-balanced.

Main industry

Companies headquartered in Aichi include the following.

Aichi Steel Tōkai
Aisin Seiki Kariya
Brother Industries, Ltd. Nagoya
Central Japan Railway Company Nagoya
Denso Corporation Kariya
Eisaku Noro Company Ichinomiya
Kanesue Corporation Ichinomiya
Makita Corporation Anjō
Matsuzakaya Nagoya
Mizkan Corporation Handa
Nagoya Railroad Nagoya
Nippon Sharyo Nagoya
Noritake Nagoya
Okuma Corporation Ōguchi
Sumitomo Riko Komaki[6]
Toyota Motor Corporation Toyota

Companies such as Fuji Heavy Industries, Mitsubishi Motors, Pfizer, Sony, Suzuki, Bodycote, and Volkswagen Group also operate plants or branch offices in Aichi.

International relations

Expo 2005

Sister Autonomous Administrative division



Nagoya Station and Nagoya Station building
Nagoya Station and Nagoya Station building
Toyohashi Station and Toyohashi Railroad
Komaki Junction
Komaki Junction
Nagoya Expressway
Chubu Centrair International Airport, constructed on an artificial island
Chubu Centrair International Airport, constructed on an artificial island
Nagoya Airfield
Port of Nagoya
Port of Mikawa
Port of Mikawa
JR logo (central).svg
JR Central
Shinkansen jrc.svg
Tokaido Shinkansen
Tokaido Line
Chūō Main Line
Kansai Line
Taketoyo Line
Iida Line
Meitetsu logomark 2.svg
 NH Nagoya Line
 IY Inuyama Line
 KM Komaki Line
 TA Centrair Line
 TA Tokoname Line
 ST Seto Line
 TK Toyokawa Line
 GN Gamagori Line
 TT Toyota Line
 KC Chita Line
 MU  MY Mikawa Line
 TB Bisai Line
 CH Chikko Line
 TB Tsushima Line
 E Nagoya Line
Aonami line logo.svg
Aonami Line
Nagoya Subway Logo (black).svg
Nagoya Municipal Subway
Nagoya Subway Logo V2 (Higashiyama Line).svg
Higashiyama Line
Nagoya Subway Logo V2 (Meijo Line).svg
Meijo Line
Nagoya Subway Logo V2 (Tsurumai Line).svg
Tsurumai Line (connecting to Meitetsu Toyota and Inuyama Line)
Nagoya Subway Logo V2 (Sakura-dori Line).svg
Sakura-dori Line
Nagoya Subway Logo V2 (Meiko Line).svg
Meiko Line
Nagoya Subway Logo V2 (Kamiiida Line).svg
Kamiiida Line (connecting to Meitetsu Komaki Line)
Toyotetsu logomark.svg
Toyohashi Railroad
Aikan logomark.svg
Aichi Loop Line

People movers and tramways


Expressways and toll roads

National highways





National universities

Public universities

Private universities

Senior high schools

This section needs expansion. You can help by adding to it. (October 2015)


Nagoya Dome(NagoyaHigashi-ku)
Toyota Stadium(Toyota)
Wing Arena Kariya(Kariya)
Wing Arena Kariya
Teva Ocean Arena(NagoyaMinato-ku)
Teva Ocean Arena
Paloma Mizuho Stadium(NagoyaMizuho-ku)

The sports teams listed below are based in Aichi.


Central League


Tokai Regional League






Top League






Nagoya Castle
Ōsu Kannon, Naka, Nagoya
Ōsu Kannon, Naka, Nagoya
Toyota Commemorative Museum of Industry and Technology
SCMaglev and Railway Park
Akabane Beach, Tahara
Akabane Beach, Tahara
Twin Arch 138 Tower in Kiso River Park, Ichinomiya
Twin Arch 138 Tower in Kiso River Park, Ichinomiya

Notable sites in Aichi include the Meiji Mura open-air architectural museum in Inuyama, which preserves historic buildings from Japan's Meiji and Taishō periods, including the reconstructed lobby of Frank Lloyd Wright's old Imperial Hotel (which originally stood in Tokyo from 1923 to 1967).

Other popular sites in Aichi include the tour of Toyota car factory in the city by the same name, the monkey park in Inuyama, and the castles in Nagoya, Okazaki, Toyohashi, and Inuyama.

Aichi Prefecture has many wonderful beaches. For example, Himakajima Beach, Shinojima Beach, Akabane Beach and Utsumi Beach.

Notable people from Aichi

This section needs expansion. You can help by adding to it. (June 2021)

Festival and events

UNESCO Intangible Cultural Heritage[7]


  1. ^ a b c Frédéric, Louis (31 May 2002). Japan Encyclopedia. Translated by Roth, Käthe. Harvard University Press. ISBN 978-0674007703. OCLC 58053128. OL 7671330M.
  2. ^ "General overview of area figured for Natural Parks by prefecture" (PDF). Government of Japan. Ministry of the Environment. 1 April 2014. Archived (PDF) from the original on 5 November 2020. Retrieved 11 November 2020.
  3. ^ "Statistics Bureau Home Page". Ministry of Internal Affairs and Communications. Statistics Bureau. n.d. Archived from the original on 8 November 2020. Retrieved 12 November 2020.
  4. ^ "Summary of Aichi Prefecture". Aichi Prefectural Government Official Site. Aichi Prefectural Government Office. n.d. Archived from the original on 29 October 2020. Retrieved 11 November 2020.
  5. ^ Sadamichi, Kato (1 July 2000). "Rediscovering an Ancient Poem to Save a Tidal Flat". International Studies in Literature and Environment. Oxford University Press. 7 (2): 189–197. doi:10.1093/isle/7.2.189. eISSN 1759-1090. ISSN 1076-0962. OCLC 819414712.
  6. ^ "Business Locations". Sumitomo Riko. Archived from the original on 12 November 2020. Retrieved 11 November 2020.
  7. ^ "Yama, Hoko, Yatai, float festivals in Japan". Website of the Convention for the Safeguarding of the Intangible Cultural Heritage. UNESCO. Secretariat of the Convention for the Safeguarding of the Intangible Cultural Heritage. n.d. Archived from the original on 10 July 2020. Retrieved 12 November 2020.