Postal Code 643000 - Zigong, Sichuan, China

The postal code 643000 is part of China’s standardized six-digit postal system, operated under the official framework of China Post, the national postal authority for China. Chinese postal codes follow the numeric pattern X X X X X X, such as 2 0 0 0 X X (illustrative example only). The first digit indicates the postal region, the next two identify the postal zone or prefecture, and the last three digits represent the district-level delivery branch. This code covers the locality of Zigong within the Sichuan region of China, positioned approximately around latitude 29.3416 and longitude 104.7769. China’s routing hierarchy follows Province → Prefecture/City → District/County → Local Delivery Zone. A general routing example is: - Province: Sichuan - Prefecture/City: (Example: Central Urban Prefecture) - District/County: Zigong - Delivery Zone: Determined by the last three digits of the postal pattern This page reflects the structural principles publicly used by China Post. All pattern examples are illustrative, not the actual assignment for 643000. For accurate delivery or address verification, confirm that the district/county matches Zigong, Sichuan, China.