The percentage of Welsh speakers was lowest among the population who identified as having "English only" and "English and British" identities (4.2% for both).
Roedd canran y siaradwyr Cymraeg ar ei hisaf ymysg y boblogaeth wnaeth nodi hunaniaeth "Seisnig yn unig" a "Seisnig a Phrydeinig" (4.2% ill dau).