Gaoyou, a county-level city in Jiangsu Province, is managed by Yangzhou City. It is located in the middle of Jiangsu Province and the west edge of Lixia River. It borders Xinghua City in the east, Jiangdu District, Hanjiang District and Yizheng City in the south, Tianchang City and Jinhu County in the west, and Baoying County in the north, with a total area of 1963 square kilometers. In 2021, Gaoyou will have a total registered residence population of 796400 and a permanent population of 709600. There are 34 ethnic groups. As of October 2021, Gaoyou City has 2 streets, 10 towns and 1 township under its jurisdiction.

Gaoyou is the only county and city named after "Post" in China. It has a history of more than 7000 years of civilization and 2244 years of city construction (by 2021). Known as the famous Jiangzuo District and the capital of Guangling in history, it is the hometown of Emperor Yao and the birthplace of Yao culture. It is an important area of Jianghuai civilization and postal culture. In the Han Dynasty, Guangling County was divided into Gaoyou County in the north. It is a world heritage city, a national historical and cultural city, a national civilized city, a national health city, and a national demonstration area for national unity and progress. There are 1 world heritage site, 2 4A scenic spots, 6 3A scenic spots, and 6 national key cultural relics protection units.

In 2021, the gross regional product of Gaoyou City will reach 92.931 billion yuan, with a comparable price increase of 7.8%. In terms of industries, the added value of the primary industry is 9.335 billion yuan, and the added value of the secondary industry is 46.826 billion yuan; The added value of the tertiary industry was 36.77 billion yuan, and the tertiary industrial structure was adjusted to 10:50.4:39.6.