Shahekou District (simplified Chinese: 沙河口区; traditional Chinese: 沙河口區; pinyin: Shāhékǒu Qū) is one of six districts of Dalian, Liaoning province, People's Republic of China, forming part of the urban core. It is located in the western portion of the city. Its area is 34.71 square kilometres (13.40 sq mi) and its permanent population as of 2010 is 693,140, making it Dalian's most densely populated county-level division.