Sanpoku, Niigata
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Sanpoku (山北町; -machi) is a town located in Iwafune District, Niigata, Japan.
As of 2003, the town has an estimated population of 7,367 and a density of 25.95 persons per km². The total area is 283.91 km².Template:Japan-geo-stub ja:山北町_(新潟県)