Dasha Town, belonging to Duchang County, Jiujiang City, Jiangxi Province, is located in the southeastern part of Duchang County, east of Sanchagang Town and Xiyuan Township across the river, south of Poyang Lake, west of Hehe Township, and north of Phoenix Mountain Range bordering with Yangfeng Township and Wangdun Township. The area of jurisdiction is 52.2 square kilometers, under the jurisdiction of 1 community, 10 administrative villages.At the end of 2019, Dasha Town area has a household population of 35,300 people. The Du (Chang) Zhong (Pavilion) highway crosses the territory. At the end of 2019, Dasha Town had 4 industrial enterprises and 40 general stores or supermarkets with business area of 50 square meters or more.