The highest concentrations of people identifying as “Polish” were in Wrexham (2.4%), Merthyr Tydfil (1.9%) and Flintshire (1.4%).
Roedd y crynoadau uchaf o bobl a nododd “Pwylaidd” yn Wrecsam (2.4%), Merthyr Tudful (1.9%) a Sir y Fflint (1.4%).