According to the national postal code statistics, the postal code of Xinheng Town, Jiedong District, Jieyang City, Guangdong Province is 5 15548, with the first two digits of 5 1 representing provinces, cities and autonomous regions, the third digit of 5 representing postal areas, the fourth digit of 5 representing counties and cities, and the last two digits of 48 representing specific delivery areas.

Matters needing attention in filling in the postal code are: determine the province, city and district information of the mailing address, and ensure that the postal code used is correct in the region.