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

Niigata Prefecture is a Prefectures of Japan, prefecture in the Chūbu region of Honshu of Japan. Niigata Prefecture has a population of 2,131,009 (1 July 2023) and is the List of Japanese prefectures by area, fifth-largest prefecture of Japan by geographic area ...

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 38,224 living in 17,028 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 51 persons per km². The total area of the city is .

Geography

Itoigawa is located in the far southwestern corner of Niigata Prefecture, bordered by the

Sea of Japan The Sea of Japan is the marginal sea between the Japanese archipelago, Sakhalin, the Korean Peninsula, and the mainland of the Russian Far East. The Japanese archipelago separates the sea from the Pacific Ocean. Like the Mediterranean Sea, it ...

to the north,

Nagano Prefecture is a Landlocked country, landlocked Prefectures of Japan, prefecture of Japan located in the Chūbu region of Honshu. Nagano Prefecture has a population of 2,007,682 () and has a geographic area of . Nagano Prefecture borders Niigata Prefecture ...

to the south, and

Toyama Prefecture is a prefecture of Japan located in the Chūbu region of Honshu. Toyama Prefecture has a population of 993,848 (1 January 2025) and has a geographic area of 4,247.61 km2 (1,640.01 sq mi). Toyama Prefecture borders Ishikawa Prefecture to the ...

to the west. Parts of the city are within the borders of the Chūbu-Sangaku National Park or the Myōkō-Togakushi Renzan National Park. Itoigawa is also famous for its jade which can be found on local beaches. Itoigawa also lends its name to the Itoigawa-Shizuoka Tectonic Line, a major fault that runs from Itoigawa, through Lake Suwa to the city of Shizuoka in

Shizuoka Prefecture is a Prefectures of Japan, prefecture of Japan located in the Chūbu region of Honshu. Shizuoka Prefecture has a population of 3,555,818 and has a geographic area of . Shizuoka Prefecture borders Kanagawa Prefecture to the east, Yamanashi Pref ...

, forming the western border of the Fossa Magna.

Surrounding municipalities

** Hakuba ** Otari *

** Jōetsu ** Myōkō *

Asahi Asahi (Japanese 朝日, 旭, or あさひ 'morning sun') may refer to: Places in Japan Cities * Asahi, Chiba (旭市; ''Asahi-shi'') Wards * Asahi-ku, Osaka (旭区; ''Asahi-ku'') * Asahi-ku, Yokohama (旭; ''Asahi-ku'') Towns * Asahi, Aichi ...

Climate

Itoigawa has a Humid climate (Köppen ''Cfa'') characterized by warm, wet summers and cold winters with heavy snowfall. The average annual temperature in Itoigawa is . The average annual rainfall is with December as the wettest month. The temperatures are highest on average in August, at around , and lowest in January, at around . In addition, Itoigawa has the highest record warm daily minimum in Japan, at on August 10, 2023.

Demographics

Per Japanese census data, the population of Itoigawa has declined steadily over the past 70 years and is now less than it was a century ago.

History

The area of present-day Itoigawa was part of ancient

Echigo Province was an old provinces of Japan, old province in north-central Japan, on the shores of the Sea of Japan. It bordered on Uzen Province, Uzen, Iwashiro Province, Iwashiro, Kōzuke Province, Kōzuke, Shinano Province, Shinano, and Etchū Province, ...

. Historically, Itoigawa lies at the end of the ''shio no michi'' (salt road) that supplied salt from the Sea of Japan to Edo via

Shinano Province or is an old province of Japan that is now Nagano Prefecture. Shinano bordered Echigo, Etchū, Hida, Kai, Kōzuke, Mikawa, Mino, Musashi, Suruga, and Tōtōmi Provinces. The ancient capital was located near modern-day Matsumoto, whi ...

. 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 ...

, Itoigawa was the

castle town A castle town is a settlement built adjacent to or surrounding a castle. Castle towns were common in Medieval Europe. Some examples include small towns like Alnwick and Arundel, which are still dominated by their castles. In Western Europe, ...

for Itoigawa Domain. After 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 ...

, with the establishment of the modern municipalities system on April 1, 1889, Itoigawa became a town within

Nishikubiki District, Niigata was a district located in Niigata Prefecture, Japan that was dissolved in 2005.Nō and Ōmi (both from Nishikubiki District) were merged into Itoigawa.

Oldest known jadeite-using culture

A great many jadeite beads and axe heads as well as the remains of jadeite workshops from the

Neolithic era The Neolithic or New Stone Age (from Ancient Greek, Greek 'new' and 'stone') is an archaeological period, the final division of the Stone Age in Mesopotamia, Asia, Europe and Africa (c. 10,000 BCE to c. 2,000 BCE). It saw the Neolithic Revo ...

have been uncovered in Itoigawa. These beads and axes were traded throughout Japan and the Korean Peninsula and were produced by the world's oldest known jadeite-using culture, centered on the Itoigawa region.

Government

Itoigawa 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 legislature of 20 members. Itoigawa contributes one member to the Niigata Prefectural Assembly. In terms of national politics, the city is part of Niigata 6th 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

Commercial fishing Commercial fishing is the activity of catching fish and other seafood for Commerce, commercial Profit (economics), profit, mostly from wild fisheries. It provides a large quantity of food to many countries around the world, but those who practice ...

and the production of

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) ...

and cement are the mainstays of the local economy.

Education

Itoigawa has 14 public elementary schools and four public middle schools operated by the city government, and three public high schools operated by the Niigata Prefectural Bureau of Education. The city and prefecture also operate one special education school each for the handicapped.

Transportation

Railway

–

Hokuriku Shinkansen The Hokuriku Shinkansen () is a high-speed Shinkansen railway line connecting Tokyo with Tsuruga, Fukui, Tsuruga in the Hokuriku region of Japan. It is jointly operated by East Japan Railway Company (JR East) and West Japan Railway Company (JR ...

JR West , also referred to as , is one of the Japan Railways Group (JR Group) companies and operates in western Honshu. It has its headquarters in Kita-ku, Osaka. It is listed in the Tokyo Stock Exchange, is a constituent of the TOPIX Large70 index, ...

Ōito Line The is a railway line in Japan which connects Matsumoto Station in Nagano Prefecture with Itoigawa Station in Niigata Prefecture. There are two operators on the line: East Japan Railway Company (JR East) and West Japan Railway Company (JR West ...

* - - - - - Echigo-TOKImeki logomark

Echigo Tokimeki Railway - Nihonkai Hisui Line * - - - Itoigawa - - - - Ainokaze Toyama Railway logo

Ainokaze Toyama Railway *

Highway

* 20px

Hokuriku Expressway The , (abbreviated as , is a 4-laned national Expressways of Japan, expressway in Japan. It is owned and managed by East Nippon Expressway Company and Central Nippon Expressway Company. Overview The first section was opened in 1972 by Japan ...

– Oyashirazu IC, Itoigawa IC, Nō IC * * * *

Local attractions

* The entire territory of Itoigawa is "Itoigawa Global

Geopark A geopark is a protected area with internationally significant geology within which Sustainability, sustainable development is sought and which includes tourism, conservation, education and research concerning not just geology but other relevant s ...

" which is a member of the Japanese Geoparks Network and

Global Geoparks Network UNESCO Global Geoparks (UGGp) are geoparks certified by the UNESCO Global Geoparks Council as meeting all the requirements for belonging to the Global Geoparks Network (GGN). The GGN is both a network of geoparks and the agency of the United Nati ...

on account of its outstanding geological heritage, educational programs and projects, and promotion of geotourism. *The city is known for its distinctive black-colored

yakisoba (, , ) is a Japanese noodle Stir frying, stir-fried dish. Usually, soba noodles are made from buckwheat flour, but soba in are Chinese-style noodles () made from wheat flour, typically flavored with a condiment similar to Worcestershire sauce ...

. * Itoigawa is also known for its unique ''bugaku'', a variety of traditional Japanese performance art. Itoigawa Bugaku can be seen at festivals taking place at Hakusan Shrine and Amatsu Shrine, and has been nationally designated as an Important Intangible Cultural Asset.

National Historic Sites

* Chōjagahara Site, Jōmon period archaeological site * Matsumoto Kaidō, ancient highway * Terachi Site, Jōmon period archaeological site

Notable people from Itoigawa

* Hideki Hosaka, Japanese professional wrestler (known for his work in

Frontier Martial-Arts Wrestling Frontier Martial-Arts Wrestling-Explosion (FMW-E) is a Japanese professional wrestling promotion founded on July 28, 1989, by Atsushi Onita as (FMW). The promotion specializes in hardcore wrestling involving weapons such as barbed wire and fir ...

All Japan Pro Wrestling (AJPW/AJP) or simply All Japan is a Puroresu, Japanese professional wrestling Professional wrestling promotion, promotion founded on October 21, 1972, by Giant Baba after he left the Japanese Wrestling Association to create his own promotion. Ma ...

, and Pro Wrestling Zero-One) * The poet Ryōkan (1758-1831) writes that Itoigawa is his former village.One Robe, One Bowl; the Zen poetry of Ryokan. transl. John Stevens. 9th Ed. John Weatherhill, Inc., Tokyo. 1988.

References

External links

Official Website
{{Authority control Cities in Niigata Prefecture Global Geoparks Network members Geoparks in Japan Populated coastal places in Japan