Oman vs Sierra Leone: Population aged 25-64 years
Oman
3,200 thousands
in 2025
Sierra Leone
3,338 thousands
in 2025
Oman rank
112th
Sierra Leone rank
109th
Population aged 25-64 years over time
- Oman
- Sierra Leone
How they compare
Sierra Leone currently reports 3,338 thousands against 3,200 thousands in Oman, a difference of 138 thousands.
The two have swapped places 2 times across 55 shared years of data; in 1970 it was Sierra Leone ahead.
Oman ranks 112th and Sierra Leone ranks 109th of 230 countries.
Sierra Leone has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Oman | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 244.95 thousands | 1,097 thousands | 851.71 thousands | Sierra Leone |
| 1980s | 414.52 thousands | 1,265 thousands | 850.1 thousands | Sierra Leone |
| 1990s | 769.97 thousands | 1,437 thousands | 667.26 thousands | Sierra Leone |
| 2000s | 1,018 thousands | 1,765 thousands | 747.2 thousands | Sierra Leone |
| 2010s | 2,237 thousands | 2,397 thousands | 159.37 thousands | Sierra Leone |
| 2020s | 2,844 thousands | 3,075 thousands | 231.4 thousands | Sierra Leone |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher population aged 25-64 years, Oman or Sierra Leone?
- Sierra Leone, at 3,338 thousands against 3,200 thousands in Oman as of 2025.
- What is the difference in population aged 25-64 years between Oman and Sierra Leone?
- 138 thousands, with Sierra Leone ahead.
- How many years of comparable data are there for Oman and Sierra Leone?
- 55 years are reported by both, from 1970 to 2025.
- How do Oman and Sierra Leone rank globally for population aged 25-64 years?
- Oman ranks 112th and Sierra Leone ranks 109th of 230 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Population aged 25-64 years (thousands). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
February 2026 Data Release