It has a population of 919,900 (2004) and a land area of 1,483 square kilometres (573 sq mi).

As auspicious tributes, they were presented to the Emperor Suzong of Tang, and found favour with him.

It was a coincidence that the then heir apparent, later Emperor Daizong, was the Prince of Chu.

The supposed treasures showed the Heaven was sympathetic to the emperor in the future.

Thus, the reign title was changed into Baoying (rough meaning: "the treasures show the sympathy [from the Heaven]"), and the county was also bestowed such a name.