The diocese stretches over 21,405 square kilometers and covers three civil districts in Karnataka state.
The total population was 5,645,380 at the end of 2017.
The languages used in the diocesan territory are Kannada, Tamil, Konkani and Malayalam.
The per capita income is Rs 100 a day (US$2.16) as of July 2006.
Textiles, areca and paddy are major products.