Changfeng County
| Changfeng 长丰县 | |
|---|---|
| View of Shuangdunji in Changfeng from the Hefei–Bengbu high-speed railway | |
| Changfeng in Hefei | |
| Hefei in Anhui | |
| Coordinates: 32°28′41″N 117°10′03″E / 32.4780°N 117.1676°E | |
| Country | China | 
| Province | Anhui | 
| Prefecture-level city | Hefei | 
| County seat | Shuihu | 
| Area | |
|  • Total | 1,922.24 km2 (742.18 sq mi) | 
| Population  (2020) | |
|  • Total | 783,982 | 
| • Density | 410/km2 (1,100/sq mi) | 
| Time zone | UTC+8 (China Standard) | 
| Postal code | 231100 | 
| Website | www | 
Changfeng County (simplified Chinese: 长丰县; traditional Chinese: 長豐縣; pinyin: Chángfēng Xiàn) is a county of Anhui Province, East China, it is under the administration of the prefecture-level city of Hefei, the capital of Anhui. It is the northernmost county-level division of Hefei, the provincial capital. The county has a surface of 1,922.24 km2 (742.18 sq mi) and a population of 629,535 inhabitants. It contains 9 towns, 6 townships, and a development zone.
In 2014 Changfeng County offered 1,000 RMB in cash ($140) to each family who gave newborns the mothers' surname, in order improve the imbalanced sex ratio.