Austria vs Sierra Leone
Austria has 4% more people than Sierra Leone: 9,208,163 vs 8,819,794, a gap of 388,369. Sierra Leone is growing faster (+2.04% vs +0.33% a year), adding about 179,588 people a year against +30,231. Using continuous exponential growth from the stated base year, if these rates held, Sierra Leone would overtake Austria in about 3 years (from the 2025 population bases, around 2028) — a projection, not a forecast. Austria is the older society: 21.1% aged 65+ against 3.3% in Sierra Leone, while Sierra Leone has more children (37.7% under 15 vs 14.1%). People in Austria live 20.0 years longer on average (82.0 vs 62.0). GDP per capita is 74.4× higher in Austria ($62,930 vs $846).
Country/territory population bases: World Bank 2025 (Austria) and 2025 (Sierra Leone); growth years 2025 / 2025. Annual source values, not live counts; years may differ. Growth is national, not local.
Austria vs Sierra Leone — side by side
 Austria |  Sierra Leone | |
|---|---|---|
| Population | 9,208,1632025 | 8,819,7942025 |
| Growth rate / yr | +0.33%2025 | +2.04%2025 |
| Births per 1,000 | 8.42024 | 30.12024 |
| Deaths per 1,000 | 9.62024 | 8.22024 |
| Children per woman | 1.312024 | 3.702024 |
| Life expectancy | 82.0 yrs2024 | 62.0 yrs2024 |
| Aged 0–14 | 14.1%2025 | 37.7%2025 |
| Aged 65+ | 21.1%2025 | 3.3%2025 |
| Density | 110.7 /km²2023 | 117.2 /km²2023 |
| Area | 83,879 km²2023 | 72,300 km²2023 |
| Urban population | 69.7%2025 | 45.9%2025 |
| Net migration / yr | +11,2542025 | -11,3092025 |
| GDP per capita | $62,9302025 | $8462025 |
| Country population rank (available records) | #97 | #100 |
| Base / world population (World Bank 2025) | 0.11% | 0.11% |
Highlighted cell = the higher value (not "better"). Small print under each value is its own data year. Source: World Bank; country/territory population bases may have different years. These are not live counts.
Population since 1960
World Bank population history (not the separate UN WPP timeline). Austria: 1.3× from 1960 to 2025; Sierra Leone: 3.9× from 1960 to 2025. Left: absolute population. Right: each series indexed to its own first available year = 100; baseline years may differ.
More comparisons
Regions: Europe & Central Asia · Sub-Saharan Africa · rankings
Austria: Austria vs Azerbaijan, Austria vs Israel, Austria vs Hungary, Austria vs Switzerland, Austria vs Belarus, Austria vs Sierra Leone, Austria vs Slovakia.
Sierra Leone: Sierra Leone vs Austria, Sierra Leone vs Switzerland, Sierra Leone vs Belarus, Sierra Leone vs Togo, Sierra Leone vs Laos, Sierra Leone vs Turkmenistan.
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