In 2021, 473,060 (22.3%) of the population aged three years or older born in Wales were able to speak Welsh, a decrease of 1 percentage point from 2011.
Yn 2021, roedd 473,060 (22.3%) o'r boblogaeth tair oed neu hŷn a anwyd yng Nghymru yn gallu siarad Cymraeg, gostyngiad o 1 pwynt canran ers 2011.