Early indicators of the UK population at mid-2020 suggest that the population was 0.12% smaller than that projected for mid-2020 (in the 2018-based national population projections).
Ar lefel Cymru roedd amcangyfrifon canol 2020 o’r boblogaeth 0.5% yn uwch nag amcanestyniadau 2018 ar gyfer 2020.