According to the information query of China postal code database, the postal code of Pingyi County, Linyi City, Shandong Province is 273300, with the first two digits 27 representing provinces, cities and autonomous regions, the third digit 3 representing postal areas, the fourth digit 3 representing counties and cities, and the last two digits 00 representing specific delivery areas.
Postal code usually consists of Arabic numerals, which represents the special code of the post office that delivers mail, and is also the communication code between residents and units within the delivery range of the post office.