Nankoku (南国市, Nankoku-shi) is a city located in Kōchi Prefecture, Japan. As of 31 July 2022, the city had an estimated population of 46‚459 in 22499 households and a population density of 370 persons per km2.[1] The total area of the city is 125.30 square kilometres (48.38 sq mi).

Nankoku
南国市
View of Tosa Bay and Pacific Ocean from Zenjibu Temple
View of Tosa Bay and Pacific Ocean from Zenjibu Temple
Flag of Nankoku
Official seal of Nankoku
Map
Location of Nankoku in Kōchi Prefecture
Location of Nankoku
Nankoku is located in Japan
Nankoku
Nankoku
Location in Japan
Coordinates: 33°35′N 133°38′E / 33.583°N 133.633°E / 33.583; 133.633
CountryJapan
RegionShikoku
PrefectureKōchi
Government
 • MayorToshihito Hashizume
Area
 • Total
125.30 km2 (48.38 sq mi)
Population
 (31 July 2021)
 • Total
46,459
 • Density370/km2 (960/sq mi)
Time zoneUTC+09:00 (JST)
City hall address2301 Ōsone Kō, Nankoku-shi, Kōchi-ken 783-8501
ClimateCfa
WebsiteOfficial website
Symbols
BirdOnagadori (Long tail chicken)
FlowerTachibana (Citrus tachibana)
TreeYamamomo
Nankoku City Hall
Downtown Nankoku
Tosa Kokubunji

Geography

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Kachō Plains view from Okō Castle

Nankoku is located in the center of Kochi Prefecture on the island of Shikoku. The northern part of the city is in the southern end of the Shikoku Mountains and the southern part has an eight kilometer long coastline on the Pacific Ocean. In between is the Kochi Plain, with the Mononobe River flowing from north to south on the border with Konan. About half of the municipality is forested.

Neighbouring municipalities

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Kōchi Prefecture

Climate

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Nankoku has a humid subtropical climate (Köppen climate classification Cfa) with hot, humid summers and cool winters. There is significant precipitation throughout the year, especially during June and July. The average annual temperature in Nankoku is 16.6 °C (61.9 °F). The average annual rainfall is 2,359.1 mm (92.88 in) with September as the wettest month. The temperatures are highest on average in August, at around 27.2 °C (81.0 °F), and lowest in January, at around 6.0 °C (42.8 °F).[2] The highest temperature ever recorded in Nankoku was 36.9 °C (98.4 °F) on 30 July 2004; the coldest temperature ever recorded was −7.9 °C (17.8 °F) on 8 February 1984.[3]

Climate data for Gomen, Nankoku (1991−2020 normals, extremes 1978−present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 21.9
(71.4)
23.0
(73.4)
24.7
(76.5)
28.4
(83.1)
30.1
(86.2)
32.9
(91.2)
35.9
(96.6)
36.9
(98.4)
36.3
(97.3)
30.9
(87.6)
26.2
(79.2)
22.8
(73.0)
36.9
(98.4)
Mean daily maximum °C (°F) 11.5
(52.7)
12.5
(54.5)
15.5
(59.9)
20.0
(68.0)
23.9
(75.0)
26.2
(79.2)
29.9
(85.8)
31.5
(88.7)
28.9
(84.0)
24.4
(75.9)
19.0
(66.2)
13.8
(56.8)
21.4
(70.6)
Daily mean °C (°F) 6.0
(42.8)
7.1
(44.8)
10.5
(50.9)
15.2
(59.4)
19.4
(66.9)
22.5
(72.5)
26.2
(79.2)
27.2
(81.0)
24.4
(75.9)
19.3
(66.7)
13.5
(56.3)
8.1
(46.6)
16.6
(61.9)
Mean daily minimum °C (°F) 0.8
(33.4)
2.0
(35.6)
5.4
(41.7)
10.3
(50.5)
14.8
(58.6)
19.0
(66.2)
23.0
(73.4)
23.6
(74.5)
20.6
(69.1)
14.6
(58.3)
8.5
(47.3)
2.9
(37.2)
12.1
(53.8)
Record low °C (°F) −7.1
(19.2)
−7.9
(17.8)
−4.6
(23.7)
0.1
(32.2)
5.9
(42.6)
10.6
(51.1)
14.4
(57.9)
16.6
(61.9)
9.2
(48.6)
2.9
(37.2)
−1.4
(29.5)
−5.7
(21.7)
−7.9
(17.8)
Average precipitation mm (inches) 51.7
(2.04)
95.1
(3.74)
153.5
(6.04)
195.6
(7.70)
239.3
(9.42)
316.1
(12.44)
319.2
(12.57)
277.8
(10.94)
335.9
(13.22)
180.4
(7.10)
117.2
(4.61)
77.3
(3.04)
2,359.1
(92.88)
Average precipitation days (≥ 1.0 mm) 5.5 7.0 9.7 9.8 10.1 14.1 12.5 11.5 12.2 8.7 6.8 5.8 113.7
Mean monthly sunshine hours 183.2 171.4 191.9 201.0 201.8 137.0 176.6 208.4 166.4 180.8 165.7 178.0 2,167.8
Source: Japan Meteorological Agency[3][2]
Climate data for Kōchi Airport, Nankoku (2003−2020 normals, extremes 2003−present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 18.9
(66.0)
24.7
(76.5)
24.2
(75.6)
27.4
(81.3)
31.2
(88.2)
31.8
(89.2)
38.3
(100.9)
36.6
(97.9)
36.0
(96.8)
31.1
(88.0)
26.4
(79.5)
22.9
(73.2)
38.3
(100.9)
Mean daily maximum °C (°F) 11.9
(53.4)
13.0
(55.4)
15.7
(60.3)
19.9
(67.8)
23.6
(74.5)
25.9
(78.6)
29.3
(84.7)
31.0
(87.8)
28.7
(83.7)
24.6
(76.3)
19.4
(66.9)
14.0
(57.2)
21.4
(70.6)
Daily mean °C (°F) 6.4
(43.5)
7.9
(46.2)
10.8
(51.4)
15.4
(59.7)
19.5
(67.1)
22.6
(72.7)
26.1
(79.0)
27.3
(81.1)
24.7
(76.5)
19.8
(67.6)
14.3
(57.7)
8.5
(47.3)
16.9
(62.5)
Mean daily minimum °C (°F) 1.0
(33.8)
2.9
(37.2)
5.8
(42.4)
10.6
(51.1)
15.2
(59.4)
19.4
(66.9)
23.4
(74.1)
24.1
(75.4)
21.3
(70.3)
15.6
(60.1)
9.6
(49.3)
3.2
(37.8)
12.7
(54.8)
Record low °C (°F) −7.9
(17.8)
−7.1
(19.2)
−3.8
(25.2)
1.1
(34.0)
7.3
(45.1)
12.5
(54.5)
17.9
(64.2)
17.5
(63.5)
13.1
(55.6)
7.1
(44.8)
−1.3
(29.7)
−5.8
(21.6)
−7.9
(17.8)
Average precipitation mm (inches) 50.4
(1.98)
106.2
(4.18)
138.1
(5.44)
184.4
(7.26)
199.9
(7.87)
288.6
(11.36)
299.9
(11.81)
255.3
(10.05)
314.9
(12.40)
201.6
(7.94)
111.1
(4.37)
88.0
(3.46)
2,238.3
(88.12)
Average precipitation days (≥ 1.0 mm) 5.3 7.7 9.6 9.1 8.9 12.8 11.8 10.4 11.3 8.8 7.0 5.3 108
Source: Japan Meteorological Agency[4][5]

Demographics

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Per Japanese census data, the population of Nankoku in 2020 is 46,664 people.[6] Nankoku has been conducting censuses since 1960.

Historical population
YearPop.±%
1960 41,798—    
1965 41,237−1.3%
1970 41,096−0.3%
1975 42,832+4.2%
1980 44,866+4.7%
1985 47,554+6.0%
1990 46,823−1.5%
1995 48,192+2.9%
2000 49,965+3.7%
2005 50,758+1.6%
2010 49,472−2.5%
2015 47,982−3.0%
2020 46,664−2.7%
Nankoku population statistics[6]

History

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As with all of Kōchi Prefecture, the area of Nankoku was part of ancient Tosa Province. The Tosa Kokubun-ji was built during the Nara period, indicating that it was the center of Tosa Province and in proximity to the provincial capital During the Heian period, the nobleman Ki no Tsurayuki wrote the Tosa Diary while staying in what is now Nankoku. During the Sengoku period, Okō Castle was the stronghold of the Chōsokabe clan, who conquered most of Shikoku. During the Edo period, the area was part of the holdings of Tosa Domain ruled by the Yamauchi clan from their seat at Kōchi Castle. Following the Meiji Restoration, the town of Goman (後免町) was established within Nagaoka District, Kōchi with the creation of the modern municipalities system on April 1, 1889. On September 30, 1956 the town expanded by annexing 5 neighboring villages. On October 1, 1959 Gomen merged with four neighboring villages to form the city of Nankoku.

Government

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Nankoku has a mayor-council form of government with a directly elected mayor and a unicameral city council of 21 members. Nankoku contributes two members to the Kōchi Prefectural Assembly. In terms of national politics, the city is part of Kōchi 1st district of the lower house of the Diet of Japan.

Economy

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Nankoku has good road, rail and air connections and has an economy based on light manufacturing, food processing, agriculture and distribution. Strong in the fishing industry and the market industry, Nankoku-shi supplies most of Kochi's agricultural needs, because of the amount of fields and plantations.

Education

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Kochi Medical School Hospital

Nankoku has 13 public elementary schools and four public middle schools operated by the city government and three public high schools operated by the Kōchi Prefectural Department of Education. There is also one private middle school and one private high school. The prefecture also operates two special education schools for the handicapped. Kochi University's medical school and a branch of the National Institute of Technology and Evaluation are located in Nankoku.

Transportation

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Kōchi Airport
 
Gomen Station
 
Tram of Tosaden Kōtsū in Nankoku, Kōchi

Airport

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Railway

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  Shikoku Railway Company - Dosan Line

Tosa Kuroshio Railway - Asa Line

Tosaden Kōtsū - Tosaden Kōtsū Gomen Line (tram line)

Highways

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Local attractions

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Notable people from Nankoku

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References

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  1. ^ "Nankoku city official statistics" (in Japanese). Japan.
  2. ^ a b 気象庁 / 平年値(年・月ごとの値). JMA. Retrieved April 17, 2022.
  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. ^ a b Nankoku population statistics
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