United Kingdom of Great Britain and Northern Ireland vs Viet Nam: Population in urban agglomerations of more than 1 million

United Kingdom of Great Britain and Northern Ireland
19.05 million
in 2025
Viet Nam
20.22 million
in 2025
United Kingdom of Great Britain and Northern Ireland rank
21st
Viet Nam rank
20th

Population in urban agglomerations of more than 1 million over time

  • United Kingdom of Great Britain and Northern Ireland
  • Viet Nam
05.0M10.0M15.0M20.0M196019922025

How they compare

Viet Nam currently reports 20.22 million against 19.05 million in United Kingdom of Great Britain and Northern Ireland, a difference of 1.16 million.

That makes Viet Nam's figure about 1.1 times United Kingdom of Great Britain and Northern Ireland's.

The two have swapped places 1 time across 66 shared years of data; in 1960 it was United Kingdom of Great Britain and Northern Ireland ahead.

United Kingdom of Great Britain and Northern Ireland ranks 21st and Viet Nam ranks 20th of 121 countries.

Across the 7 decades both report, United Kingdom of Great Britain and Northern Ireland averaged higher in 6 and Viet Nam in 1.

Head to head by decade

Decade United Kingdom of Great Britain and Northern Ireland Viet Nam Difference Ahead
1960s 16.16 million 2.57 million 13.59 million United Kingdom of Great Britain and Northern Ireland
1970s 15.26 million 3.75 million 11.51 million United Kingdom of Great Britain and Northern Ireland
1980s 14.62 million 4.77 million 9.85 million United Kingdom of Great Britain and Northern Ireland
1990s 14.85 million 6.25 million 8.60 million United Kingdom of Great Britain and Northern Ireland
2000s 15.59 million 9.27 million 6.32 million United Kingdom of Great Britain and Northern Ireland
2010s 17.20 million 14.03 million 3.17 million United Kingdom of Great Britain and Northern Ireland
2020s 18.64 million 18.78 million 143,950 Viet Nam

Averages of every year both report within each decade.

Frequently asked questions

Which has higher population in urban agglomerations of more than 1 million, United Kingdom of Great Britain and Northern Ireland or Viet Nam?
Viet Nam, at 20.22 million against 19.05 million in United Kingdom of Great Britain and Northern Ireland as of 2025.
What is the difference in population in urban agglomerations of more than 1 million between United Kingdom of Great Britain and Northern Ireland and Viet Nam?
1.16 million, with Viet Nam ahead.
How many years of comparable data are there for United Kingdom of Great Britain and Northern Ireland and Viet Nam?
66 years are reported by both, from 1960 to 2025.
How do United Kingdom of Great Britain and Northern Ireland and Viet Nam rank globally for population in urban agglomerations of more than 1 million?
United Kingdom of Great Britain and Northern Ireland ranks 21st and Viet Nam ranks 20th 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.

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United Kingdom of Great Britain and Northern Ireland vs Viet Nam: Population in urban agglomerations of more than 1 million. Statizoid, drawing on World Urbanization Prospects 2018, United Nations (UN). Retrieved 15 September 2026, from https://urban.statizoid.com/compare/population-in-urban-agglomerations-of-more-than-1-million/united-kingdom/viet-nam/

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About this data

Indicator
Population in urban agglomerations of more than 1 million
Source
World Urbanization Prospects 2018, United Nations (UN)
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
121 places, 7,986 data points, 1960–2025
Last refreshed

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.