Changfeng County, affiliated to Hefei City of Anhui Province, is located between 116°52 '-- 117°26' east longitude and 31°55 '-- 32°37' north latitude. It is located in central Anhui Province, north of Hefei, east of Feidong County, Dingyuan County of Chuzhou City, west of Luyang District, Feixi County and Shou County of Huainan City, south of Yaohai District and north of Huainan City.

Changfeng County covers an area of 1,841 square kilometers. By the end of 2021, Changfeng County has jurisdiction over 12 towns and 2 townships with a permanent resident population of 792,000. Because most of the territory belongs to the Qing Dynasty Shou governor Feng Township named, meaning "long peace, longevity and abundance"; Located in the hinterland of Jianghuai Plain, it is a transition zone between subtropical monsoon humid climate and warm temperate sub-humid climate. Changfeng is the northern gateway district of Hefei, the location of Beicheng New District, radiating north Anhui "bridgehead".

In 2021, the GDP of Changfeng County reached 76.194 billion yuan, an increase of 10.3% over the previous year based on comparable prices.