404 135。 China Postal Code Information Network shows that the postal code of Zhoujiaba, Wanzhou District, Chongqing is 404 135. Zhoujiaba Street, belonging to Wanzhou District, Chongqing, is located in the north of Wanzhou City, bordering on Bell and Drum Tower Street in the east, Taibai Street in the south, Shahe Street in the west and Tiancheng Town in the north, with a total area of 13.0 square kilometers.