Tan Hung is located in the deep-flooded area of Dong Thap Muoi Region which is given with the benefits from the flooding season as well as directly impacted by the floods. The establishment and socio-economic development of Tan Hung are also closely linked with the reclamation and immigration and construction of new economic region in Dong Thap Muoi. Tan Hung district is located in the transition area between the Pleitocene and the upstream of Mekong River Delta Region with two main landscape types of rich alum low region and river bed of ancient rivers.
Tan Hung district has the natural area of 49,670.81 ha and the population of 53,555 people according to the census on 21/5/2013. Tan Hung district consists 01 town of Tan Hung and 11 communes of Vinh Thanh, Vinh Loi, Vinh Dai, Hung Dien B, Hung Thanh, Vinh Chau A, Vinh Chau B, Thanh Hung, Hung Ha, Hung Yen, Vinh Buu (separated from Vinh Dai commune).