This compact collection of households comprises nine teams that are almost 100 percent Hui, a rarity in central and northern Ningxia, where Hui are thinly distributed among the majority Han population. Yongning county is only 12.9 percent Hui, a relatively small minority in contrast to neighboring Lingwu county in the southeast, which is 47 percent Hui, and southern Jingyuan county, which is 97 percent Hui (the highest concentration of Hui in one county in China).
2002, Dru C. Gladney, “Ethnoreligious Resurgence in a Northwestern Sufi Community”, in Susan D. Blum, Lionel M. Jensen, editors, China Off Center: Mapping the Margins of the Middle Kingdom, Honolulu: University of Hawaiʻi Press, page 109