Lower secondary school completion rates, adjusted gender parity index in Sierra Leone
Sierra Leone: Lower secondary school completion rates, adjusted gender parity index was 1 index in 2025. ▲ Rising
Lower secondary school completion rates, adjusted gender parity index in Sierra Leone, 1981–2025
Source: UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data. Measured in index.
Analysis
In 2025, lower secondary school completion rates, adjusted gender parity index in Sierra Leone stood at 1 index. That is the highest value across all 45 years on record.
The figure is up 1.2% on the previous year and up 4.0% over ten years.
Over the whole period, lower secondary school completion rates, adjusted gender parity index in Sierra Leone peaked at 1 index in 2025 and was at its lowest, 0.4574 index, in 1981.
That places Sierra Leone 116th out of 164 countries with data for 2025, putting it in the middle of the range.
The long-run direction has been consistently rising across the 45 years of available data.
Lower secondary school completion rates, adjusted gender parity index in Sierra Leone, year by year
| Year | index | Change |
|---|---|---|
| 1981 | 0.4574 index | — |
| 1982 | 0.4596 index | +0.5% |
| 1983 | 0.4675 index | +1.7% |
| 1984 | 0.4826 index | +3.2% |
| 1985 | 0.4907 index | +1.7% |
| 1986 | 0.5063 index | +3.2% |
| 1987 | 0.5245 index | +3.6% |
| 1988 | 0.5521 index | +5.3% |
| 1989 | 0.5784 index | +4.8% |
| 1990 | 0.6043 index | +4.5% |
| 1991 | 0.6258 index | +3.6% |
| 1992 | 0.6417 index | +2.5% |
| 1993 | 0.6507 index | +1.4% |
| 1994 | 0.6468 index | -0.6% |
| 1995 | 0.637 index | -1.5% |
| 1996 | 0.6202 index | -2.6% |
| 1997 | 0.6001 index | -3.2% |
| 1998 | 0.5814 index | -3.1% |
| 1999 | 0.5666 index | -2.5% |
| 2000 | 0.5573 index | -1.6% |
| 2001 | 0.5516 index | -1.0% |
| 2002 | 0.55 index | -0.3% |
| 2003 | 0.5519 index | +0.3% |
| 2004 | 0.558 index | +1.1% |
| 2005 | 0.5747 index | +3.0% |
| 2006 | 0.601 index | +4.6% |
| 2007 | 0.6376 index | +6.1% |
| 2008 | 0.6795 index | +6.6% |
| 2009 | 0.7267 index | +6.9% |
| 2010 | 0.7739 index | +6.5% |
| 2011 | 0.8175 index | +5.6% |
| 2012 | 0.8572 index | +4.9% |
| 2013 | 0.9014 index | +5.2% |
| 2014 | 0.9411 index | +4.4% |
| 2015 | 0.9649 index | +2.5% |
| 2016 | 0.9791 index | +1.5% |
| 2017 | 0.9807 index | +0.2% |
| 2018 | 0.9771 index | -0.4% |
| 2019 | 0.971 index | -0.6% |
| 2020 | 0.9729 index | +0.2% |
| 2021 | 0.9726 index | -0.0% |
| 2022 | 0.9764 index | +0.4% |
| 2023 | 0.9834 index | +0.7% |
| 2024 | 0.9911 index | +0.8% |
| 2025 | 1 index | +1.2% |
Sierra Leone compared with similar countries
- Sierra Leone's 1 index is above the median for low income countries, which is 1 index, 1.0× the median. (23 countries reporting)
- Sierra Leone's 1 index is below the median for Sub-Saharan Africa, which is 1.05 index, 96% of the median. (45 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0.5021 index | 0.4574 index | 0.5784 index | 9 |
| 1990s | 0.6175 index | 0.5666 index | 0.6507 index | 10 |
| 2000s | 0.5988 index | 0.55 index | 0.7267 index | 10 |
| 2010s | 0.9164 index | 0.7739 index | 0.9807 index | 10 |
| 2020s | 0.9833 index | 0.9726 index | 1 index | 6 |
Countries ranked near Sierra Leone
More gender data for Sierra Leone
- Child population (UN estimates and projections) 3,446 (2030)
- Child population (UN estimates and projections) (0-14), annual growth 0.722 % change on previous year (2030)
- Population 6,249 (2030)
- Working-age population (UN estimates and projections) 6,249 (2030)
- Population (UN estimates and projections), annual growth rate 2.45 % change on previous year (2030)
- Age population, age 00, female, interpolated 122,158 (2025)
- Age population, age 00, male, interpolated 124,999 (2025)
- Age population, age 01, female, interpolated 118,334 (2025)
- Age population, age 01, male, interpolated 120,652 (2025)
- Age population, age 02, female, interpolated 116,120 (2025)
Frequently asked questions
- What is lower secondary school completion rates, adjusted gender parity index in Sierra Leone?
- Lower secondary school completion rates, adjusted gender parity index in Sierra Leone was 1 index in 2025, according to UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data.
- What is the highest lower secondary school completion rates, adjusted gender parity index recorded in Sierra Leone?
- The highest recorded value was 1 index in 2025.
- What is the lowest lower secondary school completion rates, adjusted gender parity index recorded in Sierra Leone?
- The lowest recorded value was 0.4574 index in 1981.
- How does Sierra Leone rank for lower secondary school completion rates, adjusted gender parity index?
- Sierra Leone ranks 116th out of 164 countries with data for 2025.
- Is lower secondary school completion rates, adjusted gender parity index rising or falling in Sierra Leone?
- Over the last ten years it is up 4.0%. The long-run trend across the full record is rising.
- Where does this Sierra Leone data come from?
- The figures come from UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data, published as part of Lower secondary school completion rates, adjusted gender parity index. Statizoid updates them automatically from the source API.
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About this data
An adjusted gender parity index of 1 indicates equal lower secondary school completion rates between boys and girls. Values below 1 favor boys, and values above 1 favor girls.