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Coordinates: 37°2′20.5″N 137°51′45.6″E / 37.039028°N 137.862667°E / 37.039028; 137.862667
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Revision as of 23:38, 6 February 2021

Itoigawa
糸魚川市
Hisui Kaigan ("Jade Beach" Oya-shirazu Lake Takanami & Mt Myojo Charmant Hiuchi Snow Resort
Hisui Kaigan ("Jade Beach"
Oya-shirazuLake Takanami & Mt Myojo
Charmant Hiuchi Snow Resort
Flag of Itoigawa
Official seal of Itoigawa
Location of Itoigawa in Niigata
Location of Itoigawa in Niigata
Itoigawa is located in Japan
Itoigawa
Itoigawa
 
Coordinates: 37°2′20.5″N 137°51′45.6″E / 37.039028°N 137.862667°E / 37.039028; 137.862667
CountryJapan
RegionChūbu (Kōshin'etsu) (Hokuriku)
PrefectureNiigata
First official recorded100 AD
City settledJune 1, 1954
Government
 • MayorTōru Yoneda (from April 2005)
Area
 • Total
746.24 km2 (288.12 sq mi)
Population
 (December 31, 2020)
 • Total
41,333
 • Density55/km2 (140/sq mi)
Time zoneUTC+9 (Japan Standard Time)
Symbols 
• TreeSiebold's beech
• FlowerLilium japonicum
• BirdCommon kingfisher
• StoneJade
Phone number025-552-1511
Address1-2-5 Ichinomiya, Itoigawa-shi, Niigata-ken 941-8501
WebsiteOfficial website
Tsutsuishi city scape
Tsutsuishi funaya

Itoigawa (糸魚川市, Itoigawa-shi) is a city located in Niigata Prefecture, Japan. As of 31 January 2020, the city had an estimated population of 41,333, and a population density of 55 persons per km². The total area of the city is 746.24 square kilometres (288.12 sq mi).[1]

Geography

Itoigawa is located in the far southwestern corner of Niigata Prefecture, bordered by the Sea of Japan to the north, Nagano Prefecture to the south, and Toyama Prefecture 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, forming the western border of the Fossa Magna.

Surrounding municipalities

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 13.5 °C. The average annual rainfall is 2173 mm with September as the wettest month. The temperatures are highest on average in August, at around 26.2 °C, and lowest in January, at around 2.2 °C.[2]

Climate data for Itoigawa(1981 - 2010)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 17.5
(63.5)
23.6
(74.5)
26.0
(78.8)
30.7
(87.3)
31.8
(89.2)
34.7
(94.5)
37.2
(99.0)
38.9
(102.0)
37.4
(99.3)
35.1
(95.2)
26.2
(79.2)
23.5
(74.3)
38.9
(102.0)
Mean daily maximum °C (°F) 6.8
(44.2)
7.1
(44.8)
10.4
(50.7)
16.1
(61.0)
20.6
(69.1)
24.1
(75.4)
28.1
(82.6)
30.3
(86.5)
26.4
(79.5)
21.0
(69.8)
15.5
(59.9)
10.4
(50.7)
18.1
(64.6)
Daily mean °C (°F) 3.5
(38.3)
3.6
(38.5)
6.4
(43.5)
11.8
(53.2)
16.5
(61.7)
20.5
(68.9)
24.6
(76.3)
26.6
(79.9)
22.6
(72.7)
17.0
(62.6)
11.5
(52.7)
6.6
(43.9)
14.3
(57.7)
Mean daily minimum °C (°F) 0.8
(33.4)
0.6
(33.1)
2.8
(37.0)
7.8
(46.0)
12.7
(54.9)
17.5
(63.5)
21.8
(71.2)
23.6
(74.5)
19.6
(67.3)
13.7
(56.7)
8.1
(46.6)
3.5
(38.3)
11.1
(52.0)
Record low °C (°F) −5.3
(22.5)
−5.2
(22.6)
−3.1
(26.4)
−1.3
(29.7)
5.1
(41.2)
10.7
(51.3)
15.4
(59.7)
17.2
(63.0)
11.4
(52.5)
4.8
(40.6)
0.8
(33.4)
−4.2
(24.4)
−5.3
(22.5)
Average precipitation mm (inches) 349.9
(13.78)
220.6
(8.69)
203.2
(8.00)
121.7
(4.79)
128.2
(5.05)
178.9
(7.04)
242.3
(9.54)
180.3
(7.10)
261.8
(10.31)
228.7
(9.00)
344.3
(13.56)
374.9
(14.76)
2,834.7
(111.60)
Mean monthly sunshine hours 64.0 87.1 125.1 176.0 191.8 149.1 160.2 196.2 130.3 135.8 100.8 73.6 1,589.9
Source 1: 理科年表
Source 2: Japan Meteorological Agency (Averages:1981-2010、Peaks:1888-present)[3][4]

Demographics

Per Japanese census data,[5] the population of Itoigawa has declined steadily over the past 70 years and is now less than it was a century ago.

Historical population
YearPop.±%
1920 58,580—    
1930 63,103+7.7%
1940 64,019+1.5%
1950 78,727+23.0%
1960 77,641−1.4%
1970 67,785−12.7%
1980 61,488−9.3%
1990 56,803−7.6%
2000 53,021−6.7%
2010 47,702−10.0%

History

The area of present-day Itoigawa was part of ancient Echigo Province. Historically, Itoigawa lies at the end of the shio no michi (salt road) that supplied salt to from the Sea of Japan to Edo via Shinano Province. During the Edo period, Itoigawa was the castle town for Itoigawa Domain. After the Meiji restoration, with the establishment of the modern municipalities system on April 1, 1889, Itoigawa became a town within Nishikubiki District, Niigata.

The modern city was created on June 1, 1954. On April 1, 2005, the towns of 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 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.[6][7]

Government

Itoigawa has a mayor-council form of government with a directly elected mayor and a unicameral 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 of the Diet of Japan.

Economy

Commercial fishing and the production of limestone 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

JR West - Ōito Line

Echigo Tokimeki Railway - Nihonkai Hisui Line

Ainokaze Toyama Railway

Highway

Local attractions

  • The entire territory of Itoigawa is "Itoigawa Global Geopark" which is a member of the Japanese Geoparks Network and Global Geoparks Network on account of its outstanding geological heritage, educational programs and projects, and promotion of geotourism.[8]
  • The city is known for its distinctive black-colored yakisoba.[9]
  • 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

Notable people from Itoigawa

References

  1. ^ "Itoigawa official statistics". Itoigawa City. 1 January 2021. Retrieved 3 January 2021.
  2. ^ Itoigawa climate data
  3. ^ "平年値(年・月ごとの値)". Japan Meteorological Agency. Retrieved 2012-08-10.
  4. ^ "観測史上1~10位の値(年間を通じての値)". Japan Meteorological Agency. Retrieved 2012-08-10.
  5. ^ Itoigawa population statistics
  6. ^ Kijima, Tsutomu. 翡翠製大珠の加工と流通 (in Japanese).
  7. ^ "International Jomon Culture Conference Bulletin 1 2004 (English version)". Retrieved 2016-06-30.
  8. ^ Itoigawa Global Geopark
  9. ^ Trautlein, Steve, "The chow-down tour of Kanto's local dishes", Japan Times, 24 August 2012, p. 15
  10. ^ One Robe, One Bowl; the Zen poetry of Ryokan. transl. John Stevens. 9th Ed. John Weatherhill, Inc., Tokyo. 1988.