Spain vs Thailand: Population in urban agglomerations of more than 1 million
Spain
12.54 million
in 2025
Thailand
15.52 million
in 2025
Spain rank
28th
Thailand rank
27th
Population in urban agglomerations of more than 1 million over time
- Spain
- Thailand
How they compare
Thailand currently reports 15.52 million against 12.54 million in Spain, a difference of 2.98 million.
That makes Thailand's figure about 1.2 times Spain's.
The two have swapped places 1 time across 66 shared years of data; in 1960 it was Spain ahead.
Spain ranks 28th and Thailand ranks 27th of 121 countries.
Across the 7 decades both report, Spain averaged higher in 5 and Thailand in 2.
Head to head by decade
| Decade | Spain | Thailand | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 5.75 million | 2.69 million | 3.06 million | Spain |
| 1970s | 7.52 million | 3.97 million | 3.55 million | Spain |
| 1980s | 8.30 million | 5.56 million | 2.74 million | Spain |
| 1990s | 8.88 million | 7.05 million | 1.83 million | Spain |
| 2000s | 9.94 million | 9.44 million | 499,063 | Spain |
| 2010s | 11.42 million | 12.81 million | 1.39 million | Thailand |
| 2020s | 12.39 million | 14.98 million | 2.59 million | Thailand |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher population in urban agglomerations of more than 1 million, Spain or Thailand?
- Thailand, at 15.52 million against 12.54 million in Spain as of 2025.
- What is the difference in population in urban agglomerations of more than 1 million between Spain and Thailand?
- 2.98 million, with Thailand ahead.
- How many years of comparable data are there for Spain and Thailand?
- 66 years are reported by both, from 1960 to 2025.
- How do Spain and Thailand rank globally for population in urban agglomerations of more than 1 million?
- Spain ranks 28th and Thailand ranks 27th 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.