Chun'an County (Chinese: 淳安县; Pinyin: Chún'ān Xiàn) is a county under charge of Hangzhou City, Zhejiang Province of China. It has a land area of 4,452 square kilometers and a population of 450,000. The postal code is 311700, and the county seat is located on 18 North Xin'an Rd., Qiandaohu Town.
Chun'an consists of 12 towns, 18 townships, 8 districts, 5 resident districts and 889 administrative villages.