Is the Xu family in Mao Ping Village, Zhen 'an County a Han nationality?

No, according to the official website of Zhen 'an Government, as of September 4th, 2023, all residents of Mao Ping Village are Hui, so the Xu family is not Han, but Hui. Zhen 'an County, belonging to Shangluo City, Shaanxi Province, is located in the southwest of Shangluo City, bordering Shanyang County and Yunxi County of Hubei Province in the east.