Jianhu County (simplified Chinese: 建湖县; traditional Chinese: 建湖縣; pinyin: Jiànhú Xiàn) is under the administration of Yancheng, Jiangsu province, China.

It borders the prefecture-level cities of Huai'an and Yangzhou to the west.

At present, Jianhu County includes 12 towns.

[2] -Former Towns There are two key senior high schools in Jianhu County.

Recent development of transportation infrastructure in Northern Jiangsu has greatly impacted Great Yancheng area, including Jianhu.