Zhonglou District (simplified Chinese: 钟楼区; traditional Chinese: 鐘樓區; pinyin: Zhōnglóu Qū; literally: "clocktower") is one of five districts under the jurisdiction of Changzhou in Jiangsu province of the People's Republic of China. The local language is the Changzhou dialect of Wu Chinese. The postal code for the district is 213002. Zhonglou covers an area of 71 square kilometers.