United Kingdom's population is estimated by the United Nations to be 67.7 million in 2021.
The population of United Kingdom grew at 0.5% in the last year and is ranked the 2nd most populated country in Europe, ahead of France.
United Kingdom last conducted a national census in 2021 and 100% of births in United Kingdom are recorded. Read more from the World Econcomics Population Data Quality Ratings and see how United Kingdom compares to other countries around the world and in the Europe region.
United Kingdom's data is highlighted in the table below, use the filter and sort order options to allow easy comparison with other countries.
Data source: United Nations, Washington D.C., Eurostat, Luxembourg and World Economics Research, London