Saudi Arabia vs United Kingdom of Great Britain and Northern Ireland: Population in urban agglomerations of more than 1 million
Saudi Arabia
18.19 million
in 2025
United Kingdom of Great Britain and Northern Ireland
19.05 million
in 2025
Saudi Arabia rank
23rd
United Kingdom of Great Britain and Northern Ireland rank
21st
Population in urban agglomerations of more than 1 million over time
- Saudi Arabia
- United Kingdom of Great Britain and Northern Ireland
How they compare
United Kingdom of Great Britain and Northern Ireland currently reports 19.05 million against 18.19 million in Saudi Arabia, a difference of 860,100.
Across all 66 years both countries report, United Kingdom of Great Britain and Northern Ireland has been ahead every year.
Saudi Arabia ranks 23rd and United Kingdom of Great Britain and Northern Ireland ranks 21st of 121 countries.
United Kingdom of Great Britain and Northern Ireland has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Saudi Arabia | United Kingdom of Great Britain and Northern Ireland | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 755,216 | 16.16 million | 15.40 million | United Kingdom of Great Britain and Northern Ireland |
| 1970s | 1.95 million | 15.26 million | 13.32 million | United Kingdom of Great Britain and Northern Ireland |
| 1980s | 4.05 million | 14.62 million | 10.57 million | United Kingdom of Great Britain and Northern Ireland |
| 1990s | 7.29 million | 14.85 million | 7.56 million | United Kingdom of Great Britain and Northern Ireland |
| 2000s | 10.13 million | 15.59 million | 5.46 million | United Kingdom of Great Britain and Northern Ireland |
| 2010s | 14.24 million | 17.20 million | 2.96 million | United Kingdom of Great Britain and Northern Ireland |
| 2020s | 17.43 million | 18.64 million | 1.21 million | United Kingdom of Great Britain and Northern Ireland |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher population in urban agglomerations of more than 1 million, Saudi Arabia or United Kingdom of Great Britain and Northern Ireland?
- United Kingdom of Great Britain and Northern Ireland, at 19.05 million against 18.19 million in Saudi Arabia as of 2025.
- What is the difference in population in urban agglomerations of more than 1 million between Saudi Arabia and United Kingdom of Great Britain and Northern Ireland?
- 860,100, with United Kingdom of Great Britain and Northern Ireland ahead.
- How many years of comparable data are there for Saudi Arabia and United Kingdom of Great Britain and Northern Ireland?
- 66 years are reported by both, from 1960 to 2025.
- How do Saudi Arabia and United Kingdom of Great Britain and Northern Ireland rank globally for population in urban agglomerations of more than 1 million?
- Saudi Arabia ranks 23rd and United Kingdom of Great Britain and Northern Ireland ranks 21st of 121 countries.
- Where does this data come from?
- World Urbanization Prospects 2018, United Nations (UN), published as Population in urban agglomerations of more than 1 million. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Population in urban agglomerations of more than one million is the country's population living in metropolitan areas that in 2018 had a population of more than one million people.