As part of the designation of these areas, the Welsh Government could set a statistical threshold in order to identify communities with a high density of Welsh speakers.
Yn rhan o’r gwaith o ddynodi’r ardaloedd hyn, gallai Llywodraeth Cymru osod trothwy ystadegol er mwyn adnabod cymunedau sydd â dwysedd uchel o siaradwyr Cymraeg.