20 18 15。 Tianhua College of Shanghai Normal University is located atNo. 16 1 Shengxin North Road, Jiading District, Shanghai. According to the postal code database, the postal code of Tianhua College of Shanghai Normal University is 20 18 15, with the first two digits of 20 representing provinces, cities and autonomous regions, the third digit of 1 representing postal areas and the fourth digit of 8 representing counties and cities.