Thailand vs United Kingdom of Great Britain and Northern Ireland: Population ages 15-64, total

Thailand
49.82 million
in 2025
United Kingdom of Great Britain and Northern Ireland
44.01 million
in 2025
Thailand rank
20th
United Kingdom of Great Britain and Northern Ireland rank
21st

Population ages 15-64, total over time

  • Thailand
  • United Kingdom of Great Britain and Northern Ireland
10.0M20.0M30.0M40.0M50.0M196019922025

How they compare

Thailand currently reports 49.82 million against 44.01 million in United Kingdom of Great Britain and Northern Ireland, a difference of 5.82 million.

That makes Thailand'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.

Thailand ranks 20th and United Kingdom of Great Britain and Northern Ireland ranks 21st of 217 countries.

Across the 7 decades both report, Thailand averaged higher in 4 and United Kingdom of Great Britain and Northern Ireland in 3.

Head to head by decade

Decade Thailand United Kingdom of Great Britain and Northern Ireland Difference Ahead
1960s 16.04 million 34.77 million 18.73 million United Kingdom of Great Britain and Northern Ireland
1970s 22.03 million 35.27 million 13.24 million United Kingdom of Great Britain and Northern Ireland
1980s 30.84 million 36.85 million 6.01 million United Kingdom of Great Britain and Northern Ireland
1990s 39.86 million 37.49 million 2.37 million Thailand
2000s 46.19 million 39.71 million 6.48 million Thailand
2010s 50.20 million 41.85 million 8.35 million Thailand
2020s 50.39 million 43.17 million 7.22 million Thailand

Averages of every year both report within each decade.

Frequently asked questions

Which has higher population ages 15-64, total, Thailand or United Kingdom of Great Britain and Northern Ireland?
Thailand, at 49.82 million against 44.01 million in United Kingdom of Great Britain and Northern Ireland as of 2025.
What is the difference in population ages 15-64, total between Thailand and United Kingdom of Great Britain and Northern Ireland?
5.82 million, with Thailand ahead.
How many years of comparable data are there for Thailand and United Kingdom of Great Britain and Northern Ireland?
66 years are reported by both, from 1960 to 2025.
How do Thailand and United Kingdom of Great Britain and Northern Ireland rank globally for population ages 15-64, total?
Thailand ranks 20th and United Kingdom of Great Britain and Northern Ireland ranks 21st of 217 countries.
Where does this data come from?
World Population Prospects, United Nations (UN), publisher: UN Population Division, published as Population ages 15-64, total. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Thailand vs United Kingdom of Great Britain and Northern Ireland: Population ages 15-64, total. Statizoid, drawing on World Population Prospects, United Nations (UN), publisher: UN Population Division. Retrieved 30 August 2026, from https://health.statizoid.com/compare/population-ages-15-64-total/thailand/united-kingdom/

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About this data

Indicator
Population ages 15-64, total
Source
World Population Prospects, United Nations (UN), publisher: UN Population Division
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
265 places, 17,460 data points, 1960–2025
Last refreshed

Total population between the ages 15 to 64. Population is based on the de facto definition of population, which counts all residents regardless of legal status or citizenship.