Nagaoka, Niigata

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Nagaoka 長岡市
Special city
Nagaoka Matsuri and Fireworks Echigo Hillside Park Teradomari Fish Market Yukyuzan Park Chosei Bridge Nishiki Koi
Flag Seal
Location of Nagaoka in Niigata
Nagaoka
Coordinates: 37°26′46.3″N 138°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	300/km2 (770/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 a city located in Niigata Prefecture, Japan. It is the second largest city in the prefecture, after the capital city of Niigata. As of 4 August 2021^[update], the city had an estimated population of 264,611 in 109,283 households^[1] and a population 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]