Xinbei District, alternatively called the New District or the High-tech Development Zone, is one of five districts under the jurisdiction of Changzhou in Jiangsu province of China. The local language is the Changzhou dialect of Wu Chinese. It covers an area of 425 km2 (164 sq mi) in the northern part of Changzhou's administrative area. In 2005 the total population was recorded at 480,000 people. The postal code for the district is 213161.