Nigeria vs Sierra Leone: Population aged 14 years or younger (thousands), annual growth rate
Nigeria
0.8809 % change on previous year
in 2025
Sierra Leone
0.9245 % change on previous year
in 2025
Nigeria rank
57th
Sierra Leone rank
56th
Population aged 14 years or younger (thousands), annual growth rate over time
- Nigeria
- Sierra Leone
How they compare
Sierra Leone currently reports 0.9245 % change on previous year against 0.8809 % change on previous year in Nigeria, a difference of 0.0436 % change on previous year.
The two have swapped places 7 times across 55 shared years of data; in 1971 it was Nigeria ahead.
Nigeria ranks 57th and Sierra Leone ranks 56th of 233 countries.
Across the 6 decades both report, Nigeria averaged higher in 4 and Sierra Leone in 2.
Head to head by decade
| Decade | Nigeria | Sierra Leone | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 3.26 % change on previous year | 2.3 % change on previous year | 0.9638 % change on previous year | Nigeria |
| 1980s | 3.13 % change on previous year | 2.56 % change on previous year | 0.5743 % change on previous year | Nigeria |
| 1990s | 2.29 % change on previous year | 1 % change on previous year | 1.29 % change on previous year | Nigeria |
| 2000s | 2.9 % change on previous year | 3.27 % change on previous year | 0.3763 % change on previous year | Sierra Leone |
| 2010s | 2.42 % change on previous year | 1.76 % change on previous year | 0.6625 % change on previous year | Nigeria |
| 2020s | 1.06 % change on previous year | 1.15 % change on previous year | 0.0892 % change on previous year | Sierra Leone |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher population aged 14 years or younger (thousands), annual growth rate, Nigeria or Sierra Leone?
- Sierra Leone, at 0.9245 % change on previous year against 0.8809 % change on previous year in Nigeria as of 2025.
- What is the difference in population aged 14 years or younger (thousands), annual growth rate between Nigeria and Sierra Leone?
- 0.0436 % change on previous year, with Sierra Leone ahead.
- How many years of comparable data are there for Nigeria and Sierra Leone?
- 55 years are reported by both, from 1971 to 2025.
- How do Nigeria and Sierra Leone rank globally for population aged 14 years or younger (thousands), annual growth rate?
- Nigeria ranks 57th and Sierra Leone ranks 56th of 233 countries.
- Where does this data come from?
- Statizoid (derived), published as Population aged 14 years or younger (thousands), annual growth rate. Statizoid refreshes it automatically from the source and publishes the full history for both places.
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About this data
The year-on-year percentage change in Population aged 14 years or younger (thousands). Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.