G20 vs OECD: Historical population data
Historical population data over time
- G20
- OECD
How they compare
G20 currently reports 5.00 billion Persons against 1.41 billion Persons in OECD, a difference of 3.60 billion Persons.
That makes G20's figure about 3.6 times OECD's.
Across all 76 years both countries report, G20 has been ahead every year.
G20 ranks 2nd and OECD ranks 3rd of 4 groups.
G20 has averaged higher in every one of the 8 decades both report.
Head to head by decade
| Decade | G20 | OECD | Difference | Ahead |
|---|---|---|---|---|
| 1950s | 2.01 billion Persons | 753.70 million Persons | 1.26 billion Persons | G20 |
| 1960s | 2.40 billion Persons | 861.54 million Persons | 1.54 billion Persons | G20 |
| 1970s | 2.88 billion Persons | 966.34 million Persons | 1.92 billion Persons | G20 |
| 1980s | 3.37 billion Persons | 1.06 billion Persons | 2.31 billion Persons | G20 |
| 1990s | 3.88 billion Persons | 1.15 billion Persons | 2.72 billion Persons | G20 |
| 2000s | 4.31 billion Persons | 1.24 billion Persons | 3.06 billion Persons | G20 |
| 2010s | 4.71 billion Persons | 1.33 billion Persons | 3.38 billion Persons | G20 |
| 2020s | 4.95 billion Persons | 1.39 billion Persons | 3.56 billion Persons | G20 |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher historical population data, G20 or OECD?
- G20, at 5.00 billion Persons against 1.41 billion Persons in OECD as of 2025.
- What is the difference in historical population data between G20 and OECD?
- 3.60 billion Persons, with G20 ahead.
- How many years of comparable data are there for G20 and OECD?
- 76 years are reported by both, from 1950 to 2025.
- How do G20 and OECD rank globally for historical population data?
- G20 ranks 2nd and OECD ranks 3rd of 4 groups.
- Where does this data come from?
- Organisation for Economic Co-operation and Development, published as Historical population data. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
This dataset presents annual population data from 1961 by sex and five year age groups as well as the share of children, youth, the elderly, old-age and total dependency ratios. The data is available for all member countries as well as for the EU27 and G20 countries, Argentina, Brazil, China, India, Indonesia, Russia, Saudi Arabia, Singapore, South Africa and the World total. The data refer to mid-year estimates of the population. See country details in Historical population metadata.