Tongxin County (simplified Chinese: 同心县; traditional Chinese: 同心縣; pinyin: Tóngxīn Xiàn, Xiao'erjing: طْوثٍ ثِيًا) is a county under the administration of the prefecture-level city of Wuzhong in the central part of the Ningxia Hui Autonomous Region of China, bordering Gansu province to the east.

The county government has sought to use high technological methods to improve the standard of living in the region.

Edgar Snow described Yuwang Bao as follows: On the high, stout walls of Yu Wang Pao a squad of Red buglers was practicing, and from a corner of this fortlike city flew a big scarlet flag, its yellow hammer and ciskle cracking out in the breeze... We could look down on one side to a clean courtyard, where Muslim women were hulling rice and baking.

In a distant square some Red soldiers were practicing wall scaling, broad jumping, and grenade throwing.

Yuwang (40 li north-west of Yuwang Bao), recently captured by the Reds from the troops of Ma Hongkui after a ten-day siege, was described as an ancient Muslim city of four or five hundred families, with a magnificent wall of stone and brick.