Which of the following cities hosts a population of 783,478: Xinzheng or Jiaozhou City?
Xinzheng: Xinzheng () is a small county-level city of Zhengzhou in the south of Henan province of Central China. Xinzheng:  The city has a population of 600,000 people and covers an area of 15 km2 . Jiaozhou City: Jiaozhou (), formerly Jiaoxian or Jiao County, is a county-level city of Qingdao sub-provincial city, Shandong Province, China. Jiaozhou City:  It has an area of 1,313 km and a population at the 2000 Census of 783,478.
Jiaozhou