Results from the 2011 National Household Survey show that more than two-thirds of Canadians, or some 22 million people, said they were affiliated with a Christian denomination.

At 12.7 million, Roman Catholics were the largest single Christian group, representing 38 percent of Canadians; the second largest was the United Church, representing about 6 percent; while Anglicans were third, representing about 5 percent of the population.

Observers noted that among the survey’s most striking findings is that one in four Canadians, or 7.8 million people, reported they had no religious affiliation at all. That was up sharply from 16.5 percent from the 2001 census, and 12 percent in 1991.