Number of people living in the capital city in United Kingdom of Great Britain and Northern Ireland
United Kingdom of Great Britain and Northern Ireland: Number of people living in the capital city was 12.37 million people in 2100. ▲ Rising
Number of people living in the capital city in United Kingdom of Great Britain and Northern Ireland, 2020–2100
Source: European Commission, Joint Research Centre (JRC) (2025) – with minor processing by Our World in Data. Measured in people.
Analysis
United Kingdom of Great Britain and Northern Ireland recorded 12.37 million people for number of people living in the capital city in 2100.
That represents a change of down 0.6% over ten years.
Over the whole period, number of people living in the capital city in United Kingdom of Great Britain and Northern Ireland peaked at 12.45 million people in 2090 and was at its lowest, 9.99 million people, in 2020.
That places United Kingdom of Great Britain and Northern Ireland 14th out of 191 countries with data for 2100, putting it in the top 10%.
The long-run direction has been consistently rising across the 17 years of available data.
Number of people living in the capital city in United Kingdom of Great Britain and Northern Ireland, year by year
| Year | people | Change |
|---|---|---|
| 2020 | 9.99 million people | — |
| 2025 | 10.42 million people | +4.3% |
| 2030 | 10.77 million people | +3.4% |
| 2035 | 11.05 million people | +2.6% |
| 2040 | 11.39 million people | +3.1% |
| 2045 | 11.67 million people | +2.5% |
| 2050 | 11.87 million people | +1.7% |
| 2055 | 12.03 million people | +1.4% |
| 2060 | 12.13 million people | +0.8% |
| 2065 | 12.22 million people | +0.7% |
| 2070 | 12.30 million people | +0.7% |
| 2075 | 12.37 million people | +0.6% |
| 2080 | 12.42 million people | +0.4% |
| 2085 | 12.45 million people | +0.2% |
| 2090 | 12.45 million people | +0.0% |
| 2095 | 12.42 million people | -0.2% |
| 2100 | 12.37 million people | -0.4% |
United Kingdom of Great Britain and Northern Ireland compared with similar countries
- United Kingdom of Great Britain and Northern Ireland's 12.37 million people is above the median for high income countries, which is 1.17 million people, 10.6× the median. (64 countries reporting)
- United Kingdom of Great Britain and Northern Ireland's 12.37 million people is above the median for Europe & Central Asia, which is 1.12 million people, 11.1× the median. (50 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2020s | 10.20 million people | 9.99 million people | 10.42 million people | 2 |
| 2030s | 10.91 million people | 10.77 million people | 11.05 million people | 2 |
| 2040s | 11.53 million people | 11.39 million people | 11.67 million people | 2 |
| 2050s | 11.95 million people | 11.87 million people | 12.03 million people | 2 |
| 2060s | 12.17 million people | 12.13 million people | 12.22 million people | 2 |
| 2070s | 12.34 million people | 12.30 million people | 12.37 million people | 2 |
| 2080s | 12.44 million people | 12.42 million people | 12.45 million people | 2 |
| 2090s | 12.44 million people | 12.42 million people | 12.45 million people | 2 |
| 2100s | 12.37 million people | 12.37 million people | 12.37 million people | 1 |
Countries ranked near United Kingdom of Great Britain and Northern Ireland
More reference data data for United Kingdom of Great Britain and Northern Ireland
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 3.13 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 3.97 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 13.26 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 1.01 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 13.26 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 10.5 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 6.51 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 15.81 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 59.34 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 5.48 (2050)
All data for United Kingdom of Great Britain and Northern Ireland →
Frequently asked questions
- What is number of people living in the capital city in United Kingdom of Great Britain and Northern Ireland?
- Number of people living in the capital city in United Kingdom of Great Britain and Northern Ireland was 12.37 million people in 2100, according to European Commission, Joint Research Centre (JRC) (2025) – with minor processing by Our World in Data.
- What is the highest number of people living in the capital city recorded in United Kingdom of Great Britain and Northern Ireland?
- The highest recorded value was 12.45 million people in 2090.
- What is the lowest number of people living in the capital city recorded in United Kingdom of Great Britain and Northern Ireland?
- The lowest recorded value was 9.99 million people in 2020.
- How does United Kingdom of Great Britain and Northern Ireland rank for number of people living in the capital city?
- United Kingdom of Great Britain and Northern Ireland ranks 14th out of 191 countries with data for 2100.
- Is number of people living in the capital city rising or falling in United Kingdom of Great Britain and Northern Ireland?
- Over the last ten years it is down 0.6%. The long-run trend across the full record is rising.
- Where does this United Kingdom of Great Britain and Northern Ireland data come from?
- The figures come from European Commission, Joint Research Centre (JRC) (2025) – with minor processing by Our World in Data, published as part of Number of people living in the capital city. Statizoid updates them automatically from the source API.
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About this data
Projected total number of people living in the country's capital city. City boundaries are defined using a consistent global approach based on satellite imagery and population data.