Naka-ku (中区?) is a ward of the city of Sakai in Osaka Prefecture, Japan. The ward has an area of 17.94 km² and a population of 121,377. The population density is 6,766 per square kilometer. The name means "Central Ward."
The wards of Sakai were established when Sakai became a city designated by government ordinance on April 1, 2006.
- 推計人口 （平成20年） ： 堺市ホームページ (City official home page) (Retrieved on June 23, 2009)
Media related to Naka-ku, Sakai at Wikimedia Commons
- Ward office official webpage (Japanese)
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