The circle Yunmeng (云梦 县; pinyin: Yunmeng Xiàn ) is a county in China's Hubei province. He belongs to the administrative area of the prefecture-level city of Xiaogan. Yunmeng has an area of 604 square kilometers and counts 570 755 inhabitants ( 2004). Its main town is the large village Chengguan (城关 镇).
At the community level, the circuit is composed of nine major municipalities and three municipalities.