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Nagaoka 長岡市 | |||||||||||||||||||
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 Location of Nagaoka in Niigata | |||||||||||||||||||
  Nagaoka | |||||||||||||||||||
| Coordinates:37°26′46.3″N138°51′4.5″E / 37.446194°N 138.851250°E /37.446194; 138.851250 | |||||||||||||||||||
| Country | Japan | ||||||||||||||||||
| Region | Chūbu (Kōshin'etsu) (Hokuriku) | ||||||||||||||||||
| Prefecture | Niigata | ||||||||||||||||||
| Founded | 1616 | ||||||||||||||||||
| City established | April 1, 1906 | ||||||||||||||||||
| Government | |||||||||||||||||||
| • Mayor | Tatsunobu Isoda | ||||||||||||||||||
| Area | |||||||||||||||||||
• Total | 891.06 km2 (344.04 sq mi) | ||||||||||||||||||
| Population (December 2020) | |||||||||||||||||||
• Total | 266,539 | ||||||||||||||||||
| • Density | 299.13/km2 (774.73/sq mi) | ||||||||||||||||||
| Time zone | UTC+9 (Japan Standard Time) | ||||||||||||||||||
| Phone number | 0258-35-1122 | ||||||||||||||||||
| Address | 1-4-10 Otedori, Nagaoka-shi, Niigata-ken 940-8501 | ||||||||||||||||||
| Climate | Cfa | ||||||||||||||||||
| Website | Official website | ||||||||||||||||||
| Symbols | |||||||||||||||||||
| Fish | Nishiki koi | ||||||||||||||||||
| Flower | Azalea | ||||||||||||||||||
| Tree | Zelkova serrata | ||||||||||||||||||
Nagaoka (長岡市,Nagaoka-shi) is acity located inNiigata Prefecture,Japan. It is the second largest city in the prefecture, after the capital city ofNiigata. As of 4 August 2021[update], the city had an estimatedpopulation of 264,611 in 109,283 households[1] and apopulation density of 300 inhabitants per square kilometre (780/sq mi). The total area of the city was 891.06 square kilometres (344.04 sq mi).[2]
Nagaoka is in the center of Niigata prefecture and the surroundingChūetsu region of Japan, betweenlongitude 138°E andlatitude 37°N. It is 80 minutes fromTokyo by way of theJoetsu Shinkansen or three hours on theKan-Etsu Expressway and is considered a strategic traffic point in the region. Nagaoka was an inland city until January 1, 2006, when the city merged with four municipalities; two were touching theSea of Japan. TheShinano River flows through the city from south to north and industrial development is on both banks of the river. The Higashiyama mountain range lies to the east.
Nagaoka has ahumid climate (KöppenCfa) characterized by warm, wet summers and cold winters with heavy snowfall. The average annual temperature in Nagaoka is 13.3 °C (55.9 °F). The average annual rainfall is 2,349.3 mm (92.49 in) with September as the wettest month. The temperatures are highest on average in August, at around 26.2 °C (79.2 °F), and lowest in January, at around 1.6 °C (34.9 °F).[3]
| Climate data for Nagaoka, elevation 23 m (75 ft), (1991−2020 normals, extremes 1976−present) | |||||||||||||
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| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 15.0 (59.0) | 20.0 (68.0) | 26.1 (79.0) | 31.4 (88.5) | 32.8 (91.0) | 37.0 (98.6) | 39.4 (102.9) | 39.4 (102.9) | 38.3 (100.9) | 35.3 (95.5) | 27.1 (80.8) | 19.9 (67.8) | 39.4 (102.9) |
| Mean daily maximum °C (°F) | 4.5 (40.1) | 5.2 (41.4) | 9.4 (48.9) | 16.5 (61.7) | 22.3 (72.1) | 25.7 (78.3) | 29.1 (84.4) | 30.9 (87.6) | 26.7 (80.1) | 20.6 (69.1) | 14.0 (57.2) | 7.6 (45.7) | 17.7 (63.9) |
| Daily mean °C (°F) | 1.6 (34.9) | 1.8 (35.2) | 4.9 (40.8) | 11.0 (51.8) | 16.9 (62.4) | 21.0 (69.8) | 24.8 (76.6) | 26.2 (79.2) | 22.0 (71.6) | 15.9 (60.6) | 9.6 (49.3) | 4.2 (39.6) | 13.3 (56.0) |
| Mean daily minimum °C (°F) | −0.7 (30.7) | −1.1 (30.0) | 1.1 (34.0) | 6.0 (42.8) | 12.1 (53.8) | 17.1 (62.8) | 21.4 (70.5) | 22.5 (72.5) | 18.3 (64.9) | 12.0 (53.6) | 6.0 (42.8) | 1.5 (34.7) | 9.7 (49.4) |
| Record low °C (°F) | −9.7 (14.5) | −11.8 (10.8) | −6.3 (20.7) | −2.8 (27.0) | 2.9 (37.2) | 9.0 (48.2) | 13.0 (55.4) | 14.1 (57.4) | 8.1 (46.6) | 2.5 (36.5) | −1.9 (28.6) | −8.4 (16.9) | −11.8 (10.8) |
| Averageprecipitation mm (inches) | 294.4 (11.59) | 165.5 (6.52) | 140.8 (5.54) | 103.7 (4.08) | 97.8 (3.85) | 136.9 (5.39) | 235.0 (9.25) | 163.9 (6.45) | 165.6 (6.52) | 184.6 (7.27) | 289.0 (11.38) | 372.2 (14.65) | 2,349.3 (92.49) |
| Average snowfall cm (inches) | 197 (78) | 155 (61) | 52 (20) | 1 (0.4) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 (0.4) | 76 (30) | 477 (188) |
| Average extreme snow depth cm (inches) | 70 (28) | 77 (30) | 41 (16) | 1 (0.4) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 (0.4) | 27 (11) | 89 (35) |
| Average precipitation days(≥ 1.0 mm) | 25.8 | 20.5 | 18.7 | 13.4 | 10.6 | 11.5 | 13.8 | 11.1 | 13.6 | 15.1 | 19.9 | 24.7 | 198.7 |
| Average snowy days(≥ 3 cm) | 17.1 | 15.2 | 5.9 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 7.1 | 45.6 |
| Mean monthlysunshine hours | 37.3 | 60.6 | 117.9 | 170.8 | 201.3 | 155.4 | 143.9 | 193.5 | 141.0 | 132.4 | 88.3 | 49.3 | 1,493.9 |
| Source:Japan Meteorological Agency[4][3] | |||||||||||||
| Climate data forTeradomari, Nagaoka, elevation 44 m (144 ft), (2001−2020 normals, extremes 2001−present) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 14.6 (58.3) | 21.7 (71.1) | 26.1 (79.0) | 26.8 (80.2) | 31.2 (88.2) | 34.1 (93.4) | 39.4 (102.9) | 40.6 (105.1) | 38.0 (100.4) | 32.1 (89.8) | 26.2 (79.2) | 18.8 (65.8) | 40.6 (105.1) |
| Mean daily maximum °C (°F) | 5.7 (42.3) | 6.7 (44.1) | 10.7 (51.3) | 15.9 (60.6) | 21.1 (70.0) | 25.0 (77.0) | 28.3 (82.9) | 30.6 (87.1) | 26.7 (80.1) | 20.8 (69.4) | 14.6 (58.3) | 8.6 (47.5) | 17.9 (64.2) |
| Daily mean °C (°F) | 2.6 (36.7) | 2.9 (37.2) | 5.9 (42.6) | 10.7 (51.3) | 16.0 (60.8) | 20.3 (68.5) | 24.1 (75.4) | 25.9 (78.6) | 21.9 (71.4) | 16.0 (60.8) | 10.2 (50.4) | 5.1 (41.2) | 13.5 (56.2) |
| Mean daily minimum °C (°F) | −0.1 (31.8) | −0.3 (31.5) | 1.8 (35.2) | 6.3 (43.3) | 11.9 (53.4) | 16.7 (62.1) | 21.1 (70.0) | 22.5 (72.5) | 18.4 (65.1) | 12.2 (54.0) | 6.5 (43.7) | 1.9 (35.4) | 9.9 (49.8) |
| Record low °C (°F) | −6.6 (20.1) | −6.4 (20.5) | −5.3 (22.5) | −1.3 (29.7) | 4.6 (40.3) | 10.0 (50.0) | 14.4 (57.9) | 15.0 (59.0) | 7.9 (46.2) | 3.9 (39.0) | −1.6 (29.1) | −3.3 (26.1) | −6.6 (20.1) |
| Averageprecipitation mm (inches) | 181.6 (7.15) | 111.3 (4.38) | 114.8 (4.52) | 103.4 (4.07) | 91.3 (3.59) | 127.9 (5.04) | 273.7 (10.78) | 150.4 (5.92) | 160.5 (6.32) | 154.3 (6.07) | 219.0 (8.62) | 247.4 (9.74) | 1,962.9 (77.28) |
| Average precipitation days(≥ 1.0 mm) | 22.8 | 17.8 | 16.3 | 12.4 | 10.3 | 9.5 | 14.4 | 10.7 | 12.6 | 13.7 | 19.2 | 23.8 | 183.5 |
| Mean monthlysunshine hours | 46.1 | 76.8 | 140.9 | 187.3 | 212.3 | 194.7 | 160.1 | 216.9 | 168.0 | 141.4 | 86.5 | 49.5 | 1,675.3 |
| Source:Japan Meteorological Agency[5][6] | |||||||||||||
Per Japanese census data,[7] the population of Nagaoka peaked at around 1995 and has declined steadily since.
| Year | Pop. | ±% |
|---|---|---|
| 1960 | 284,026 | — |
| 1970 | 279,395 | −1.6% |
| 1980 | 289,234 | +3.5% |
| 1990 | 290,923 | +0.6% |
| 2000 | 292,887 | +0.7% |
| 2010 | 282,674 | −3.5% |
| 2020 | 266,539 | −5.7% |
The area of present-day Nagaoka was part of ancientEchigo Province. Under theTokugawa shogunate, acastle town was constructed byHori Naoyori lord ofNagaoka Domain in 1616. However, as the initial castle was located in an area prone to flooding by theShinano River, a new castle was built at the site of present-dayNagaoka Station in 1617. Nagaoka flourished as under the reign of the 13 generations of theMakino clan during theEdo period. In theBoshin War of 1868 during theMeiji Restoration, Nagaoka Domain was a member of theŌuetsu Reppan Dōmei against the imperial forces, and the city was reduced to rubble during theBattle of Hokuetsu. A gift of one hundred sacks of rice from a neighboring province was sold to finance a new school during the reconstruction of Nagaoka, from which the anecdote ofKome Hyappyo was born.[citation needed]
With the Meiji period creation of the modern municipalities system on April 1, 1889, the towns of Nagaoka and Nagaoka-honmachi were established. The two towns were merged on November 1, 1901 with the towns of Senju, Kusouzu, Ara, and village of Ouchi to form the modern town of Nagaoka, which was then raised to city status on April 1, 1906.
Prior to the merger, the size of Nagaoka was 262.45 km2 and the population was 192,292.
Nagaoka has amayor-council form of government with a directly elected mayor and aunicameral city legislature of 34 members. The city contributes six members to the Niigata Prefectural Assembly. In terms of national politics, the city is part ofNiigata 5th district of thelower house of theDiet of Japan.
The manufacturing industry prospered in Nagaoka following World War II, due in part to favorable location and good transportation infrastructure. Current industrial production includes precision instruments andmachine tools.
The city of Nagaoka operates 61 public elementary schools and 27 public middle schools. There is also one public middle school operated by the national government. Nagaoka also has nine public high schools operated by the Niigata Prefectural Board of Education and three private high schools. The prefecture also operates three special education schools in the city.
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East Japan Railway Company (JR East) –Joetsu Shinkansen
Local bus service in Nagaoka is managed byEchigo Kotsu. The bus terminal located at the east entrance of Nagaoka Station serves as the hub for the route network. Service extends to all parts of the city as well as many outlying suburban areas and villages. A bus service connecting Nagaoka Station toNiigata, Niigata Station runs at intervals of approximately 30 minutes. Additionally, long-distance bus services are available to all major cities in the prefecture as well as Tokyo.
Nagaoka JCT is a strategic interchange which connects two expressways,Hokuriku Expressway andKan-Etsu Expressway.
Hokuriku Expressway – Ōzumi PA – Nagaoka JCT – Nagaoka-kita Bus stop – Nagaoka-kita IC(ETC Only) – Nakanoshima-Mitsuke IC
Kan-etsu Expressway – Echigo-Kawaguchi IC/SA – Ojiya IC* – Nagaokaminami-Koshiji IC(ETC Only) – Nagaoka IC – Nagaoka JCT
National Route 8
National Route 17
National Route 116
National Route 117
National Route 290
National Route 291
National Route 351
National Route 352
National Route 402
National Route 403
National Route 404
National Route 460
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Nakanoshima-machi, Koshiji-machi, Mishima-machi, Yamakoshi-mura and Oguni-machi were incorporated into Nagaoka-shi as of April 1, 2005.
平成17年4月1日に南蒲原郡中之島町、三島郡三島町、古志郡山古志村、刈羽郡小国町と一緒に長岡市に編入合併しました。
Tochio-shi, Washima-mura, Teradomari-machi and Yoita-machi were incorporated into Nagaoka-shi as of January 1, 2006.
Nagaoka Oilfield Services Base, 2-14-30 Hokuyo, Nagaoka
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