1 12000。 According to the information of China Postal Code Bureau, the postal code of Yinzhou District of Tieling City is 1 12000. Yinzhou District, under the jurisdiction of Tieling City, Liaoning Province, is located in the north of Liaoning Province, on the east bank of the middle reaches of Liaohe River, 60 kilometers away from Shenyang, the provincial capital, and in the transitional zone between Liaodong Hill and Liaohe Plain.