Nagaoka is a key rail junction in central Niigata Prefecture, positioned between the Tokyo corridor, the Japan Sea coast, and regional lines through inland Niigata. The city has one main passenger train station, Nagaoka Station, served by JR East. Its specific rail role comes from the meeting of the Joetsu Shinkansen, the Shinetsu Main Line, and the Joetsu Line.
Trains from Nagaoka include Joetsu Shinkansen bullet train services, regional trains on the Shinetsu Main Line, and local services using the Joetsu Line toward mountain and valley towns. Nagaoka Station handles both long-distance and regional train tickets, with shinkansen services using the Tokyo - Niigata axis and conventional trains serving nearby cities in Niigata Prefecture.
Rail routes from Nagaoka run south toward Echigo-Yuzawa, Takasaki, Ueno, and Tokyo, north toward Niigata, west toward Kashiwazaki and Naoetsu on the Japan Sea side, and inland toward Ojiya and Tokamachi via regional connections. Book trains from and to Nagaoka online at Rail Monsters.