In 2017-2019 nearly half of the population of Wales identified as Christian (47.9%), whereas 47.3% of the population stated they had no religion.
Yn 2017-2019, nododd bron i hanner poblogaeth Cymru eu bod yn Gristion (47.9%), a nododd 47.3% o’r boblogaeth nad oedd ganddynt grefydd.