Shimanto, Kōchi (city)

Shimanto (四万十市, Shimanto-shi) is a city in southwestern Kōchi Prefecture, Japan. As of 31 July 2022, the city had an estimated population of 32,593 in 16635 households, and a population density of 52 persons per km2.[1] The total area of the city is 632.29 square kilometres (244.13 sq mi).

Shimanto
四万十市

Shimanto River
Flag of Shimanto
Official logo of Shimanto
Location of Shimanto in Kōchi Prefecture
Location of Shimanto in Kōchi Prefecture
Map
Shimanto is located in Japan
Shimanto
Shimanto
Location in Japan
Coordinates: 33°0′N 132°56′E / 33.000°N 132.933°E / 33.000; 132.933
CountryJapan
RegionShikoku
PrefectureKōchi
Government
 • MayorMasahiro Nakahira
Area
 • Total
632.29 km2 (244.13 sq mi)
Population
 (31 July 2022)
 • Total
32,593
 • Density52/km2 (130/sq mi)
Time zoneUTC+09:00 (JST)
City hall address4-10 Nakamura Ōhashi-dōri, Shimanto-shi, Kōchi-ken 783-8501
ClimateCfa
WebsiteOfficial website
Symbols
BirdCommon kingfisher
FishAyu
FlowerWisteria
TreeWillow
View of Shimanto city
Shimanto City Hall
Aerial view of Nakamura neighborhood of Shimanto

Geography

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Shimanto is located in southwestern Kōchi Prefecture. Both the Shimanto River and the Ushirogawa River run through the city. River levels often rise in summer and autumn due to the rainy season and seasonal typhoons. Shimanto's population is spread across a large area, broken up by rivers, mountains and uninhabited or sparsely inhabited areas.

Neighbouring municipalities

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Climate

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Shimanto has a wet subtropical climate (Köppen climate classification Cfa) with hot humid summers and cool to cold winters. Humidity levels are high during the hot summer months. Snow is rare and occurs only once or twice in a year. Rainfall is significant throughout the year, but heavier during the rainy season in June and July, and also in September, when a large number of typhoons hit Japan.

On August 12, 2013, Shimanto recorded a temperature of 41.0 °C (105.8 °F), the highest ever recorded in Japan.[2][3]

Climate data for Nakamura, Shimanto (1991−2020 normals, extremes 1976−present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 21.4
(70.5)
24.4
(75.9)
26.6
(79.9)
30.5
(86.9)
34.0
(93.2)
35.1
(95.2)
38.5
(101.3)
39.8
(103.6)
36.9
(98.4)
33.4
(92.1)
28.0
(82.4)
23.4
(74.1)
39.8
(103.6)
Mean daily maximum °C (°F) 11.6
(52.9)
13.0
(55.4)
16.3
(61.3)
21.1
(70.0)
25.1
(77.2)
27.1
(80.8)
31.5
(88.7)
32.4
(90.3)
29.4
(84.9)
24.7
(76.5)
19.2
(66.6)
13.8
(56.8)
22.1
(71.8)
Daily mean °C (°F) 5.9
(42.6)
7.1
(44.8)
10.5
(50.9)
15.2
(59.4)
19.4
(66.9)
22.6
(72.7)
26.6
(79.9)
27.3
(81.1)
24.1
(75.4)
18.8
(65.8)
13.1
(55.6)
7.8
(46.0)
16.5
(61.8)
Mean daily minimum °C (°F) 0.7
(33.3)
1.7
(35.1)
4.8
(40.6)
9.5
(49.1)
14.3
(57.7)
18.7
(65.7)
22.8
(73.0)
23.4
(74.1)
20.2
(68.4)
14.0
(57.2)
7.9
(46.2)
2.7
(36.9)
11.7
(53.1)
Record low °C (°F) −6.9
(19.6)
−10.4
(13.3)
−4.5
(23.9)
−0.7
(30.7)
3.9
(39.0)
10.7
(51.3)
14.2
(57.6)
16.0
(60.8)
9.7
(49.5)
2.4
(36.3)
−2.3
(27.9)
−5.3
(22.5)
−10.4
(13.3)
Average precipitation mm (inches) 91.3
(3.59)
116.9
(4.60)
189.9
(7.48)
212.5
(8.37)
262.8
(10.35)
418.2
(16.46)
317.6
(12.50)
335.5
(13.21)
438.7
(17.27)
260.1
(10.24)
137.4
(5.41)
97.2
(3.83)
2,877.9
(113.30)
Average precipitation days (≥ 1.0 mm) 8.4 8.8 11.4 10.4 10.6 15.0 12.4 12.5 13.1 9.0 8.2 8.1 127.9
Mean monthly sunshine hours 170.8 164.2 186.0 194.5 189.3 126.2 185.3 206.8 155.6 173.7 162.0 169.2 2,083.6
Source: Japan Meteorological Agency[4][5]
Climate data for Ekawasaki, Shimanto (1991−2020 normals, extremes 1977−present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 20.9
(69.6)
22.9
(73.2)
26.8
(80.2)
31.5
(88.7)
34.3
(93.7)
35.3
(95.5)
39.8
(103.6)
41.0
(105.8)
37.3
(99.1)
33.2
(91.8)
29.7
(85.5)
23.8
(74.8)
41.0
(105.8)
Mean daily maximum °C (°F) 10.2
(50.4)
11.7
(53.1)
15.5
(59.9)
20.9
(69.6)
25.2
(77.4)
27.4
(81.3)
31.6
(88.9)
32.7
(90.9)
29.2
(84.6)
24.0
(75.2)
18.1
(64.6)
12.4
(54.3)
21.6
(70.9)
Daily mean °C (°F) 4.9
(40.8)
5.9
(42.6)
9.3
(48.7)
14.2
(57.6)
18.7
(65.7)
22.1
(71.8)
26.1
(79.0)
26.7
(80.1)
23.4
(74.1)
17.8
(64.0)
12.1
(53.8)
6.8
(44.2)
15.7
(60.2)
Mean daily minimum °C (°F) 0.5
(32.9)
1.0
(33.8)
4.0
(39.2)
8.5
(47.3)
13.3
(55.9)
18.3
(64.9)
22.3
(72.1)
22.9
(73.2)
19.7
(67.5)
13.8
(56.8)
7.9
(46.2)
2.6
(36.7)
11.2
(52.2)
Record low °C (°F) −6.0
(21.2)
−7.0
(19.4)
−5.0
(23.0)
−1.7
(28.9)
3.4
(38.1)
8.9
(48.0)
14.6
(58.3)
14.9
(58.8)
9.4
(48.9)
2.7
(36.9)
−1.8
(28.8)
−6.9
(19.6)
−7.0
(19.4)
Average precipitation mm (inches) 71.2
(2.80)
94.2
(3.71)
151.3
(5.96)
166.6
(6.56)
204.9
(8.07)
355.2
(13.98)
347.5
(13.68)
316.8
(12.47)
361.6
(14.24)
168.5
(6.63)
103.1
(4.06)
83.1
(3.27)
2,423.7
(95.42)
Average precipitation days (≥ 1.0 mm) 9.6 9.4 11.9 10.2 10.1 14.4 12.6 11.7 11.6 8.5 8.7 9.8 128.5
Mean monthly sunshine hours 139.2 145.7 173.2 185.7 183.6 120.2 171.0 192.3 144.6 166.1 146.7 131.5 1,909.3
Source: Japan Meteorological Agency[3][6]

Demographics

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Per Japanese census data, the population of Shimanto in 2020 is 32,694 people.[7] Shimanto has been conducting censuses since 1960.

Historical population
YearPop.±%
1960 47,420—    
1965 42,667−10.0%
1970 39,379−7.7%
1975 39,614+0.6%
1980 40,315+1.8%
1985 40,609+0.7%
1990 40,066−1.3%
1995 38,991−2.7%
2000 38,784−0.5%
2005 37,917−2.2%
2010 35,933−5.2%
2015 34,313−4.5%
2020 32,694−4.7%
Shimanto population statistics[7]

History

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As with all of Kōchi Prefecture, the area of Shimanto City was part of ancient Tosa Province. During the Kofun period and Nara period, the area of western Tosa was called "Hata" and was ruled by the Hata Kuni no miyatsuko. The Hata clan dominated the area well into the Heian period. During the Kamakura period much of the area became part of a vast shōen landed estate controlled by the Kujō family of aristocrats from Kyoto. Kujō Michiie left the estate to his third son, Ichijō Sanetsune, who was the founding father of Ichijō family. During the Onin War, the kanpaku Ichijō Norifusa fled Kyoto in 1468 and settled in Nakamura, in what is now Shimanto.[8][9] He remodeled the village on Kyoto, giving rise to the nickname of "the little Kyoto of Tosa",[10] During the Sengoku period, the Ichijō were defeated by the Chōsokabe clan at the 1575 Battle of Shimantogawa. Following the establishment of the Tokugawa shogunate, the area was part of the holdings of Tosa Domain ruled by the Yamauchi clan from their seat at Kōchi Castle, with Nakamura becoming the seat of a 30,000 koku subsidiary domain until 1689.[11] In this year, the head of the Nakamura fief was punished for the offence of turning down a post on the Tokugawa Junior Council.[11] The local castle was destroyed, the fief's finances were confiscated, retainers were stripped of their incomes, and the samurai dwellings were destroyed, forcing them to scatter and become farmers or merchants.[11] The Nakamura area lost a great deal of wealth and independence, and became a minor rural region.[11]

Following the Meiji restoration, the village of Nakamura was established within Hata District, Kōchi with the creation of the modern municipalities system on October 1, 1889, and was raised to town status on November 10, 1898. The area was almost entirely destroyed by the 1946 Nankai earthquake, as a result of which very few historical buildings remain.[12] Photographs of the area after the earthquake can be seen in the city museum.[12] On March 31, 1954, Nakamura merged with ten neighboring villages and was raised to city status. The city of Shimanto was established on April 10, 2005, from the merger of the city of Nakamura, and the village of Nishitosa (from Hata District).

Government

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Shimanto has a mayor-council form of government with a directly elected mayor and a unicameral city council of 20 members. Shimanto contributes two members to the Kōchi Prefectural Assembly. In terms of national politics, the city is part of Kōchi 2nd district of the lower house of the Diet of Japan.

Districts

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Shimanto city is divided into thirteen districts.[13]

  • Ekawasaki (江川崎地区)
  • Gudō (具同地区)
  • Higashi-nakasuji (東中筋地区)
  • Higashiyama (東山地区)
  • Nakamura (中村地区)
  • Nakasuji (中筋地区)
  • Okawasuji (大川筋地区)
  • Shimoda (下田地区)
  • Toyama (富山地区)
  • Tsuō (津大地区)
  • Ushirogawa (後ろ川地区)
  • Warabioka (蕨岡地区)
  • Yatsuka (八束地区)

The largest district is Nakamura, with a population of 9,352 residents as of November 2013. The smallest is Toyama, with 882 residents.[13]

Economy

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The local economy is dominated by agriculture, forestry and commercial fishing, and tourism.

Education

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Shimanto City has 13 public elementary schools and four public middle schools operated by the town government, and one public middle school and three public high schools operated by the Kōchi Prefectural Board of Education. The prefecture also operates one special education school for the handicapped.

Sister cities

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The following cities were twinned with Nakamura before it became part of Shimanto.[citation needed]

Domestic

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International

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Transportation

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Railway

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  Shikoku Railway Company - Yodo Line

Tosa Kuroshio Railway Nakamura Line

Tosa Kuroshio Railway Sukumo Line

Highway

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Notable people from Shimanto

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References

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  1. ^ "Shimanto city official statistics" (in Japanese). Japan.
  2. ^ "Japan's highest temperature--41 degrees--marked in Kochi Prefecture". The Asahi Shimbun. The Asahi Shimbun Company. 12 August 2013. Archived from the original on 2013-08-13. Retrieved 13 August 2013.
  3. ^ a b 観測史上1~10位の値(年間を通じての値). JMA. Retrieved April 17, 2022.
  4. ^ 観測史上1~10位の値(年間を通じての値). JMA. Retrieved April 17, 2022.
  5. ^ 気象庁 / 平年値(年・月ごとの値). JMA. Retrieved April 17, 2022.
  6. ^ 気象庁 / 平年値(年・月ごとの値). JMA. Retrieved April 17, 2022.
  7. ^ a b Shimanto population statistics
  8. ^ 小京都 中村の歴史(その3) [The history of Little Kyoto Nakamura (Part 3)] (PDF) (in Japanese). Japan: City of Shimanto. Retrieved 7 December 2013.
  9. ^ "Nakamura Castle". Japan: the Official Guide. Japan: Japan National Tourist Organization. Retrieved 7 December 2013.
  10. ^ 小京都 中村の歴史(その1) [The history of Little Kyoto Nakamura (Part 1)] (PDF) (in Japanese). Japan: City of Shimanto. Retrieved 7 December 2013.
  11. ^ a b c d e Notehelfer, Frederick George (1971). "Chapter 4: Pacifist opposition to the Russo-Japanese War, 1903–5". Kōtoku Shūsui: Portrait of a Japanese Radical. Cambridge: Cambridge University Press. p. 4. ISBN 978-0-521-07989-1. LCCN 76134620. OCLC 142930.
  12. ^ a b "Shimanto city". Let's travel around Japan!. Japan: travel-around-japan.com. 2013. Retrieved 7 December 2013.
  13. ^ a b "人口統計月報(行政地区分別)".
  14. ^ Torahiko Miyahata at Sports Reference
  15. ^ "Profile | 岡本真夜オフィシャルサイト". www.mayo-okamoto.com. Archived from the original on 2013-12-11.
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