On Census day 2021, 1.4 million usual residents in Wales reported that they had “No religion” (46.5% of the population, up from 32.1% in 2011).
Ar ddiwrnod Cyfrifiad 2021, dywedodd 1.4 miliwn o drigolion arferol yng Nghymru nad oedd ganddynt grefydd (46.5% o’r boblogaeth, wedi codi o 32.1% yn 2011).