Dongkou Town, belonging to Jancheng County, Heze City, Shandong Province, is located in the western part of Jancheng County, adjacent to Guquan Street in the east, bordering with Fuchun Township, Shijie Township, and Linpu Township in the south, and across the river from Baimu Township and Wangzheng Places Township in Puyang County in the west, and connected to the old town in the north. The area is 96.15 square kilometers.In 2018, the household population was 72,611.
In September 1958, Dongkou Commune was established.In December 1983, when the community was abolished and a township was built, Dongkou Township was established.In October 2001, the township was abolished and Dongkou Township was established.In June 2020, Dongkou Township had 33 administrative villages under its jurisdiction.
In 2018, Dongkou Township has 31 industrial enterprises, including 4 industrial enterprises above scale, and 66 comprehensive stores or supermarkets with business area over 50 square meters.