Each diocese is made up of a few Indian civil districts and is administered by a bishop.

The civil district should not be confused with ecclesiastical district or deanery, which is another type of subdivision of a diocese.

In the following, the names listed after the name of the state or union territory are the names of civil districts, unless otherwise mentioned.

The territory of the diocese includes two civil districts Ramanathapuram and Sivagangai.

Founded in 1952 and spread over 3 civil districts of western Madhya Pradesh, it serves an area of 19,073 km2.

It is in the civil district of South Cambridgeshire.

The diocese is spread over three civil districts of western Madhya Pradesh.

It comprises two civil districts namely Vellore and Tiruvannamalai.

In 1721, the seventh civil and military district of Louisiana was named Illinois.

It consists of 21 elected members, three from each of the 7 civil districts of Hawkins County.