Longyou County, affiliated to Quzhou City, Zhejiang Province, is located in the west of Zhejiang Province, the middle of Jinqu Basin. The geographical coordinates are between 28°44 '-- 29°17' north latitude and 119°02 '-- 119°20' east longitude. It borders Jiande in the north, Jinhua urban area and Lanxi in the east, Suichang in the south and Qujiang District in the west. The county covers a total area of 1,143 square kilometers and has jurisdiction over 6 towns, 7 townships and 2 streets. According to the seventh census, as of midnight on November 1, 2020, the permanent population of Longyou County was 360,229. It is one of the first 13 counties in the history of Zhejiang Province. It is an important transportation hub connecting Jiangxi, Anhui and Fujian in the eastern and central regions of Zhejiang Province. It is also a traditional agricultural county. Longyou County is one of the first and second batch of pilot projects of Zhejiang high-quality development and common Prosperity Demonstration Zone.

In 2020, the GDP of Longyou County reached 24.761 billion yuan, with a year-on-year growth of 4.4%; Among them, the added value of the primary industry was 1.523 billion yuan, up by -5.4% year on year; The value added of the secondary industry was 10.417 billion yuan, up 4.5 percent year on year (that of the industrial industry was 8.366 billion yuan, up 3.7 percent year on year), and that of the tertiary industry was 12.821 billion yuan, up 5.6 percent year on year.

Longyou County is one of the second batch of pilot areas of Zhejiang high-quality development and construction of common prosperity demonstration zone, the national health township (county), has been selected in the national "Happy 100 counties list".