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Religion

In 2021, 52.1% of the population was Christian, with the largest religious denominations being the Roman Catholic Church (with 26.0% of the population) and the United Church of Canada with (4.1%). Other religions included Islam (6.7%), Hinduism (4.1%). 31.6% of Ontarians had no religious affiliation.

The major religious groups in Ontario in 2021 were:

In Ontario, Catholics are represented by the Assembly of Catholic Bishops of Ontario and the Anglican Protestants by the Ecclesiastical Province of Ontario.