In addition to spoken languages, British Sign Language (BSL) was the preferred language of 900 (0.03%) usual residents aged three years and over across Wales.
Yn ogystal ag ieithoedd llafar, Iaith Arwyddion Prydain (BSL) oedd dewis iaith 900 (0.03%) o’r preswylwyr arferol tair oed a throsodd ar draws Cymru.