Thagya Tibetan Township or Tajia Township, is a township in Hualong Hui Autonomous County, Haidong, Qinghai, China. In 2010, Tajia Township had a total population of 3,938: 1,999 males and 1,939 females: 950 aged under 14, 2,700 aged between 15 and 65 and 288 aged over 65.