In 1921 the district was renamed Bang Phra after the name of the central tambon.

The district has one border crossing into Cambodia, at Ban Tha Sen.

[2] The district is divided into 14 sub-districts (tambons), which are further subdivided into 97 villages (mubans).

Trat itself has town (thesaban mueang) status and covers the tambon Bang Phra and part of Wang Krachae.

The township (thesaban tambon) Tha Phrik Noen Sai covers the complete tambon Tha Phrik and parts of Noen Sai.