Colombia vs Iran, Islamic Republic of: Population in urban agglomerations of more than 1 million
Colombia
23.80 million
in 2025
Iran, Islamic Republic of
23.31 million
in 2025
Colombia rank
16th
Iran, Islamic Republic of rank
18th
Population in urban agglomerations of more than 1 million over time
- Colombia
- Iran, Islamic Republic of
How they compare
Colombia currently reports 23.80 million against 23.31 million in Iran, Islamic Republic of, a difference of 488,700.
The two have swapped places 2 times across 66 shared years of data; in 1960 it was Colombia ahead.
Colombia ranks 16th and Iran, Islamic Republic of ranks 18th of 121 countries.
Across the 7 decades both report, Colombia averaged higher in 3 and Iran, Islamic Republic of in 4.
Head to head by decade
| Decade | Colombia | Iran, Islamic Republic of | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 4.36 million | 4.21 million | 149,810 | Colombia |
| 1970s | 7.01 million | 7.01 million | 1,262 | Colombia |
| 1980s | 9.42 million | 11.03 million | 1.61 million | Iran, Islamic Republic of |
| 1990s | 12.25 million | 14.33 million | 2.08 million | Iran, Islamic Republic of |
| 2000s | 15.84 million | 17.19 million | 1.34 million | Iran, Islamic Republic of |
| 2010s | 20.09 million | 20.28 million | 193,440 | Iran, Islamic Republic of |
| 2020s | 23.14 million | 22.59 million | 543,383 | Colombia |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher population in urban agglomerations of more than 1 million, Colombia or Iran, Islamic Republic of?
- Colombia, at 23.80 million against 23.31 million in Iran, Islamic Republic of as of 2025.
- What is the difference in population in urban agglomerations of more than 1 million between Colombia and Iran, Islamic Republic of?
- 488,700, with Colombia ahead.
- How many years of comparable data are there for Colombia and Iran, Islamic Republic of?
- 66 years are reported by both, from 1960 to 2025.
- How do Colombia and Iran, Islamic Republic of rank globally for population in urban agglomerations of more than 1 million?
- Colombia ranks 16th and Iran, Islamic Republic of ranks 18th 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.