According to the postal code database, the postal code of Laiwu District, Jinan City, Shandong Province is 27 1 100, the administrative division code is 370 1 16, and the telephone area code is 053 1.

Laiwu District, affiliated to Jinan City, Shandong Province, is located in the middle of Shandong Province, at the east foot of Mount Tai. Its geological structure is controlled by latitudinal structure in central Shandong and spiral structure in western Shandong. Its climate belongs to warm temperate semi-humid monsoon climate with four distinct seasons. It has jurisdiction over 8 streets and 7 towns, as well as 1 national high-tech industrial development zones, 1 national agricultural science and technology parks and 1 provincial economic development zones.