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| settlement_type= City | image_skyline= Sado from the sea.jpg | image_caption= Sado from the sea | image_flag= Flag of Sado, Niigata.svg | image_map= Sado in Niigata Prefecture Ja.svg | lat_deg= 38 | lat_min= 1 | lat_sec= | lon_deg= 138 | lon_min= 22 | lon_sec= | region= Chūbu (Kōshin'etsu) (Hokuriku) | prefecture= Niigata Prefecture | district= | mayor= Koichiro Takano (since April 2004) | area_km2= 855.26 | population= 63,231 | population_as_of= April 1, 2011 | density_km2= 73.93 | tree= ''Thujopsis'' | flower= Daylily | bird= Crested ibis | fish= Yellowtail | city_hall_address= 232 Chigusa, Sado-shi, Niigata-ken | city_hall_postal_code= 952-1292 | website= }} is a city located on Sado Island (佐渡島 or 佐渡ヶ島, both ''Sadogashima'') in Niigata Prefecture, in the Chūbu region of Japan. Since 2004, the city has comprised the entire island, although not all of its total area of is urbanized. Sado is the sixth largest island of Japan in area following the four main islands and Okinawa Island (excluding the Northern Territories). As of April 1, 2011, the city has an estimated population of 63,231 and a population density of 73.93 persons per km2. The total area is 855.26 km2. ==Geography== The island consists of two parallel mountain ranges running roughly southwest–northeast, enclosing a central plain. The range, in the north, is slightly higher, with peaks of , the highest point of the island at , Mount Kongō, Mount Myōken, and Mount Donden. range in the south faces the Honshu coast. The highest point in Kosado is at 645 m. The plain in between is called and is the most populated area. The Kuninaka plain opens on its eastern side onto , and on its western side onto , where the longest river, reaches the sea. The island has a symmetrical shape. , on the eastern side of Kuninaka, is filled with salt water, and is a growing place for oysters. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sado, Niigata」の詳細全文を読む スポンサード リンク
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