Anji County, under the Huzhou City of Zhejiang Province, located in the hinterland of the Yangtze River Delta, Tianmu Mountains from the southwest entry, divided into two branches around the county on both sides, three sides of the mountain, the middle depression, the northeast opening of the dustpan shaped convergence basin topography. High terrain southwest, low northeast. Subtropical Marine monsoon climate; The county area is 1,886 square kilometers. It has jurisdiction over 4 subdistricts, 8 towns and 3 townships. According to the seventh census, as of midnight on November 1, 2020, the permanent population of Anji County was 586,409.

There emerged Wu Jun, a writer of the Liang Dynasty in the Southern Dynasty, Zhu Ran, a general of The Three Kingdoms, Wu Changshuo, a modern art master, Chen Rong, a famous linologist, and Zhu Lesan, a painter.

Anji County is one of the first pilot areas of Zhejiang high-quality development and construction of common prosperity demonstration zone, national tourism demonstration zone, national top 100 counties with investment potential, national pilot unit of rural governance system construction, national new industrialization industry demonstration base, and China's top 100 summer leisure counties.

In 2020, the GDP of Anji County reached 48.71 billion yuan, with an increase of 4.3%, ranking first in the city.