Reduction in Human Development Index when adjusting for inequalities in Sierra Leone
Sierra Leone: Reduction in Human Development Index when adjusting for inequalities was 39.8% in 2023. ▼ Falling
Reduction in Human Development Index when adjusting for inequalities in Sierra Leone, 2011–2023
Source: UNDP, Human Development Report (2025) – with minor processing by Our World in Data. Measured in %.
Analysis
Sierra Leone recorded 39.8% for reduction in human development index when adjusting for inequalities in 2023. That is the lowest value across all 13 years on record.
The figure is down 0.3% on the previous year and down 6.6% over ten years.
Over the whole period, reduction in human development index when adjusting for inequalities in Sierra Leone peaked at 44.0% in 2011 and was at its lowest, 39.8%, in 2023.
That places Sierra Leone 6th out of 166 countries with data for 2023, putting it in the top 10%.
The long-run direction has been consistently falling across the 13 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 42.1% | 40.8% | 44.0% | 9 |
| 2020s | 40.1% | 39.8% | 40.5% | 4 |
Countries ranked near Sierra Leone
- 3 Comoros 41.0% compare
- 4 Burkina Faso 40.5% compare
- 5 Cote d'Ivoire 39.9% compare
- 7 Mozambique 39.8% compare
- 8 Guinea 39.6% compare
- 9 Chad 39.4% compare
More reference data data for Sierra Leone
- Spring temperature anomalies 0.1247 °C (2026)
- Summer temperature anomalies 0.8874 °C (2026)
- Temperature anomalies by month 0.2824 °C (2026)
- Universal right to vote in practice 2 (2025)
- Autumn temperature anomalies 0.1314 °C (2025)
- Winter temperature anomalies 0.1178 °C (2025)
- Consumer price index 771.75 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 0 (2025)
- Men's universal right to vote 1 (2025)
Frequently asked questions
- What is reduction in human development index when adjusting for inequalities in Sierra Leone?
- Reduction in human development index when adjusting for inequalities in Sierra Leone was 39.8% in 2023, according to UNDP, Human Development Report (2025) – with minor processing by Our World in Data.
- What is the highest reduction in human development index when adjusting for inequalities recorded in Sierra Leone?
- The highest recorded value was 44.0% in 2011.
- What is the lowest reduction in human development index when adjusting for inequalities recorded in Sierra Leone?
- The lowest recorded value was 39.8% in 2023.
- How does Sierra Leone rank for reduction in human development index when adjusting for inequalities?
- Sierra Leone ranks 6th out of 166 countries with data for 2023.
- Is reduction in human development index when adjusting for inequalities rising or falling in Sierra Leone?
- Over the last ten years it is down 6.6%. The long-run trend across the full record is falling.
- Where does this Sierra Leone data come from?
- The figures come from UNDP, Human Development Report (2025) – with minor processing by Our World in Data, published as part of Reduction in Human Development Index when adjusting for inequalities. Statizoid updates them automatically from the source API.
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About this data
Percentage difference between the IHDI value and the HDI value.