Qiong Prefecture (Hainan)

Qiongzhou or Qiong Prefecture was a zhou (prefecture) in imperial China in modern northeastern Hainan, China. It existed from 631 to 1329, but between 742 and 758 it was known as Qiongshan Commandery (also translated as Qiongshan Prefecture).

Counties
In the Tang dynasty, Qiong Prefecture administered the following counties (縣):
 * Qiongshan (瓊山), roughly modern Haikou
 * Lingao (臨高), roughly modern Lingao County
 * Lehui (樂會), roughly modern Qionghai
 * Zengkou (曾口), roughly modern Chengmai County
 * Yanluo (顏羅), roughly modern southern Haikou or Ding'an County

Yanluo was abolished late in the Tang dynasty, while Zengkou was abolished by Southern Han. In the Song dynasty, Qiong Prefecture again administered 5 counties, including:
 * Qiongshan
 * Lingao
 * Lehui
 * Chengmai (澄邁), roughly modern Chengmai County
 * Wenchang (文昌), roughly modern Wenchang