Why is there only one Baoying County left in Yangzhou?

There is not only one Baoying county left.

The areas under the jurisdiction of Yangzhou City include Guangling District, Hanjiang District, Jiangdu District, Baoying County, Yizheng City and Gaoyou City. Baoying County, belonging to Yangzhou City, Anhui Province, is located in the middle of Jiangsu Province, in the lower reaches of Huaihe River, in the west of He Lixia, on the northern edge of Yangzhou City, and bordering jianhu county, xinghua city and Du Yan counties in the east; Bordering Gaoyou city in the south; West is connected with Jinhu County and Xuyi County; Hongze County and Huai 'an District are adjacent to the north.