The main religious followings in the Calliope are:

• 48.7% - No religion     
• 15.9% - Catholic
• 12.8% - Anglican
• 3.2% - Uniting Church
• 3.1% - Presbyterian and Reformed

The number of people with no religious affiliation has seen increases across the three Census periods, with the largest increase seen between 2016 and 2021.

• 2011, 1138 people 27.1 per cent of the population
• 2016, 1523 people, 29.9 per cent of the population
• 2021, 2563 people, 48.7 per cent of the population

In addition to 48.7 per cent of the community stated they had no religion in 2021, a further seven per cent did not respond.