The 2021 mid-year estimate of the UK population (ONS) was 67,026,000, an increase of 3.7 million (5.9%) on the population in mid-2011.
Amcangyfrif poblogaeth canol 2021 y DU (SYG) oedd 67,026,000, sef cynnydd o 3.7 miliwn (5.9%) ers yr amcangyfrif o’r boblogaeth yng nghanol 2011.