Zhangjiazhuang Township, a township under the jurisdiction of Dingxing County, Baoding City, Hebei Province, is located in the southwestern part of Dingxing County, bordering Xianxu Township to the east, Yaocun Township to the south, Lingyunzhu Township of Yixian County to the west, and Gao Li Township to the north across the Yishui River. The maximum distance between the east and west of the jurisdiction is 5 kilometers, the maximum distance between the north and south is 9.2 kilometers, with a total area of 28.23 square kilometers.At the end of 2018, Zhangjiazhuang Township had a total household population of 20,949.
In 1953, Zhangjiazhuang Township was established.In 1961, Zhangjiazhuang Commune was established.In 1984, it was changed to Zhangjiazhuang Township. As of June 2020, Zhangjiazhuang Township jurisdiction over 10 administrative villages, the township people's government in Zhangjiazhuang Village.
In 2011, Zhangjiazhuang Township agricultural output value of 304 million yuan, per capita net income of farmers 5000 yuan. Industrial output value of 0.74 billion yuan. The total financial income is RMB 460,000, of which the local financial income is RMB 410,000.In 2018, Zhangjiazhuang Township has 1 industrial enterprise and 34 general stores or supermarkets with business area over 50 square meters.