[1] It is located in the central and eastern parts of the oblast.

The area of the district is 4,591 square kilometers (1,773 sq mi).

[5] Within the framework of administrative divisions, Troitsky District is one of the twenty-seven in the oblast.

[1] The town of Troitsk serves as its administrative center, despite being incorporated separately as an administrative unit with the status equal to that of the districts.

[1] The Town of Troitsk is incorporated separately from the district as Troitsky Urban Okrug.