Tainai

Tainai (胎内市, Tainai-shi) is a city located in Niigata Prefecture, Japan. As of 31 December 2020, the city had an estimated population of 28,495 in 10,821 households,[1] and a population density of 110 persons per km2 (288/sq mi). The total area of the city was 264.89 square kilometres (102.27 sq mi).

Tainai

胎内市
City
Tainai City Hall
Flag
Seal
Location of Tainai in Niigata Prefecture
Tainai
 
Coordinates: 38°3′34.9″N 139°24′37.2″E
CountryJapan
RegionChūbu (Kōshin'etsu) (Hokuriku)
PrefectureNiigata
Area
 • Total264.89 km2 (102.27 sq mi)
Population
 (December 31, 2020)
 • Total28,495
 • Density110/km2 (280/sq mi)
Time zoneUTC+9 (Japan Standard Time)
Symbols 
• TreeCornus kousa; Pine
• FlowerTulip
• BirdCrested kingfisher
Phone number0254-43-6111
Address2-10 Shinwa, Tainai-shi, Niigata-ken 959-2693
WebsiteOfficial website
Tulip fields in Tainai

Geography

Tainai is located in northern Niigata Prefecture, bordered by Yamagata Prefecture to the east and the Sea of Japan to the west. The city area has an elongated shape from east to west along the Tainai River basin. There are number of dams in Tainai, including the Tainaigawa Dam and Tainai Dam.

Surrounding municipalities

Climate

Tainai has a Humid climate (Köppen Cfa) characterized by warm, wet summers and cold winters with heavy snowfall. The average annual temperature in Tainai is 12.8 °C (55°F). The average annual rainfall is 2014 mm (79.3 in) with September as the wettest month. The temperatures are highest on average in August, at around 26.1 °C (79°F), and lowest in January, at around 1.0 °C (33.8°F).[2]

Climate data for Nakajō, Niigata (1981-2010)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Average high °C (°F) 4.8
(40.6)		 5.3
(41.5)		 9.3
(48.7)		 16.5
(61.7)		 21.5
(70.7)		 25.1
(77.2)		 28.6
(83.5)		 31.0
(87.8)		 26.5
(79.7)		 20.5
(68.9)		 14.1
(57.4)		 8.4
(47.1)		 17.6
(63.7)
Daily mean °C (°F) 2.1
(35.8)		 2.1
(35.8)		 5.1
(41.2)		 11.3
(52.3)		 16.4
(61.5)		 20.5
(68.9)		 24.3
(75.7)		 26.2
(79.2)		 21.8
(71.2)		 15.8
(60.4)		 10.0
(50.0)		 5.1
(41.2)		 13.4
(56.1)
Average low °C (°F) −0.6
(30.9)		 −0.8
(30.6)		 1.3
(34.3)		 6.3
(43.3)		 11.7
(53.1)		 16.5
(61.7)		 20.7
(69.3)		 22.3
(72.1)		 18.0
(64.4)		 11.7
(53.1)		 6.1
(43.0)		 2.1
(35.8)		 9.6
(49.3)
Average precipitation mm (inches) 255.2
(10.05)		 166.1
(6.54)		 134.0
(5.28)		 114.9
(4.52)		 131.5
(5.18)		 148.7
(5.85)		 212.4
(8.36)		 164.0
(6.46)		 172.0
(6.77)		 199.4
(7.85)		 260.7
(10.26)		 273.6
(10.77)		 2,232.5
(87.89)
Mean monthly sunshine hours 33.7 52.7 104.1 164.1 188.2 167.4 159.9 202.0 139.7 125.8 70.8 41.1 1,449.5
Source: Japan Meteorological Agency

Demographics

Per Japanese census data,[3] the population of Tainai has declined steadily over the past 40 years.

Historical population
YearPop.±%
1960 36,238—    
1970 35,651−1.6%
1980 35,605−0.1%
1990 35,517−0.2%
2000 34,278−3.5%
2010 31,424−8.3%

History

The area of present-day Tainai was part of ancient Echigo Province. Following the Meiji restoration, the area was organized as part of Kitakanbara District, Niigata. The town of Nakajō, and the village of Kurokawa were established with the establishment of the modern municipalities system on April 1, 1889. The city of Tainai was established on September 1, 2005, from the merger of these municipalities.

Government

Tainai has a mayor-council form of government with a directly elected mayor and a unicameral city legislature of 14 members. Tainai contributes one member to the Niigata Prefectural Assembly. In terms of national politics, the city is part of Niigata 3rd district of the lower house of the Diet of Japan.

Economy

The economy of Tainai is primarily agricultural, mainly with rice cultivation, vegetables, flower cultivation, livestock farming, and fruit tree cultivation. Hydroelectric power generation also provides significant income to the local economy.

Education

Tainai has six public elementary schools and four public middle schools operated by the city government. The city has one public high school operated by the Niigata Prefectural Board of Education. There is also one private high school.

Transportation

Railway

JR East - Uetsu Main Line

Highway

Sister city relations

Local attractions
  • Tossaka Castle ruins, a National Historic Site
  • Jōnoyama Kofun, a National Historic Site
  • Oppo-ji, a Buddhist temple whose 3-story pagoda is a National Important Cultural Property

References
  1. Tainai city official statistics(in Japanese)
  2. Tainai climate data
  3. Tainai population statistics
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