225 100。 According to the national postal code database, the postal code of Hanjiang District, Yangzhou City, Jiangsu Province is 225 100. Postal codes are arranged in four levels and six digits, with the first two digits 22 representing Jiangsu Province, the third digit 5 representing Yangzhou Postal District, the fourth digit 1 representing Hanjiang District, and the last two digits 00 representing the specific delivery address.