The area of the district is 6,300 square kilometers (2,400 sq mi).

[2] Its administrative center is the urban locality (an urban-type settlement) of Aginskoye.

[1] Within the framework of administrative divisions, Aginsky District is one of the thirty-one in the krai.

[1] The urban-type settlement of Aginskoye serves as its administrative center.

[1] As a municipal division, the territory of the district is split between two municipal formations—Aginsky Municipal District,[5] to which two urban-type settlements and twenty of the administrative district's rural localities belong,[10] and Aginskoye Urban Okrug,[5] which covers the rest of the administrative district's territory, including the urban-type settlement of Aginskoye and the remaining rural locality.