264025。 According to the postal code database, the postal code of ludong university is 264025, which is located at No.86/KLOC-0, Hongqi Middle Road, Zhifu District, Yantai City. Ludong university, located in Yantai City, Shandong Province, belongs to the Education Department of Shandong Province. It is a comprehensive university with literature, science, agriculture and engineering as the main body and coordinated development of multiple disciplines.