Xiaoxia Subdistrict is a subdistrict in Ping'an District, Haidong, Qinghai, China. Xiaoxia Subdistrict was upgraded from a town in March 2022 to reflect increasing urbanization within it. In 2010, Xiaoxia Subdistrict had a total population of 10,623: 5,497 males and 5,126 females: 2,101 aged under 14, 7,840 aged between 15 and 65 and 682 aged over 65.