The population of India during the British Raj days was first counted during the census of 1871. Prior to this a full census and data on British subjects were not available. The 1891 census also did a linguistic division, but nothing such as "British Subjects". But people who spoke English as a mother tongue returned 238,409.

The total Number of British subjects in India in 1891 as per the 1891 census was [238,409](https://archive.org/stream/cu31924023177268#page/n159/mode/2up).

The total Number of British subjects in India in 1921 as per the 1921 census was [165,485](https://archive.org/stream/cu31924014522746#page/n201/mode/2up).