Zheng'an County
Zheng'an County 
    正安县  | |
|---|---|
| Coordinates (Zheng'an County government): 28°33′13″N 107°27′16″E / 28.5535°N 107.4544°E | |
| Country | China | 
| Province | Guizhou | 
| Prefecture-level city | Zunyi | 
| County seat | Fengyi Subdistrict | 
| Area | |
 • Total  | 2,595.24 km2 (1,002.03 sq mi) | 
| Population  (2010)  | |
 • Total  | 389,434 | 
| • Density | 150/km2 (390/sq mi) | 
| Time zone | UTC+8 (China Standard) | 
Zheng'an County (Chinese: 正安县; pinyin: Zhèng'ān Xiàn) is a county in the north of Guizhou province, China, bordering Chongqing to the north. It is under the administration of the prefecture-level city of Zunyi.