On 30 June 2018 there were estimated to be 3,139,000 people living in Wales an increase of 0.4% (13,500) on mid-2017.
Ar 30 Mehefin 2018 amcangyfrifwyd yr oedd 3,139,000 o bobl yn byw yng Nghymru, cynnydd o 0.4% (13,500) ers canol-2017.