Lower secondary school completion rates, adjusted gender parity index in Tanzania
Tanzania: Lower secondary school completion rates, adjusted gender parity index was 1.12 index in 2025. ▲ Rising
Lower secondary school completion rates, adjusted gender parity index in Tanzania, 1981–2025
Source: UNESCO Institute for Statistics (2026) – with minor processing by Our World in Data. Measured in index.
Analysis
The most recent figure for lower secondary school completion rates, adjusted gender parity index in Tanzania is 1.12 index, measured in 2025. That is the highest value across all 45 years on record.
That represents a change of up 0.4% on the previous year and up 23.6% over ten years.
Over the whole period, lower secondary school completion rates, adjusted gender parity index in Tanzania peaked at 1.12 index in 2025 and was at its lowest, 0.3175 index, in 1981.
That places Tanzania 34th out of 164 countries with data for 2025, putting it in the top quarter.
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 Tanzania, year by year
| Year | index | Change |
|---|---|---|
| 1981 | 0.3175 index | — |
| 1982 | 0.3337 index | +5.1% |
| 1983 | 0.3538 index | +6.0% |
| 1984 | 0.3687 index | +4.2% |
| 1985 | 0.3843 index | +4.2% |
| 1986 | 0.3938 index | +2.5% |
| 1987 | 0.4081 index | +3.6% |
| 1988 | 0.4266 index | +4.5% |
| 1989 | 0.4499 index | +5.5% |
| 1990 | 0.4781 index | +6.3% |
| 1991 | 0.5043 index | +5.5% |
| 1992 | 0.5297 index | +5.0% |
| 1993 | 0.5523 index | +4.3% |
| 1994 | 0.5768 index | +4.4% |
| 1995 | 0.6063 index | +5.1% |
| 1996 | 0.6337 index | +4.5% |
| 1997 | 0.6588 index | +4.0% |
| 1998 | 0.6754 index | +2.5% |
| 1999 | 0.6799 index | +0.7% |
| 2000 | 0.678 index | -0.3% |
| 2001 | 0.6772 index | -0.1% |
| 2002 | 0.6777 index | +0.1% |
| 2003 | 0.6777 index | +0.0% |
| 2004 | 0.6727 index | -0.7% |
| 2005 | 0.6702 index | -0.4% |
| 2006 | 0.6633 index | -1.0% |
| 2007 | 0.6596 index | -0.6% |
| 2008 | 0.6623 index | +0.4% |
| 2009 | 0.6719 index | +1.4% |
| 2010 | 0.696 index | +3.6% |
| 2011 | 0.7347 index | +5.6% |
| 2012 | 0.7777 index | +5.9% |
| 2013 | 0.8206 index | +5.5% |
| 2014 | 0.8607 index | +4.9% |
| 2015 | 0.9048 index | +5.1% |
| 2016 | 0.9523 index | +5.3% |
| 2017 | 1.01 index | +5.8% |
| 2018 | 1.05 index | +4.2% |
| 2019 | 1.08 index | +2.6% |
| 2020 | 1.09 index | +1.4% |
| 2021 | 1.1 index | +0.5% |
| 2022 | 1.1 index | +0.2% |
| 2023 | 1.11 index | +0.7% |
| 2024 | 1.11 index | +0.5% |
| 2025 | 1.12 index | +0.4% |
Tanzania compared with similar countries
- Tanzania's 1.12 index is above the median for lower middle income countries, which is 1.09 index, 1.0× the median. (45 countries reporting)
- Tanzania's 1.12 index is above the median for Sub-Saharan Africa, which is 1.05 index, 1.1× the median. (45 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0.3818 index | 0.3175 index | 0.4499 index | 9 |
| 1990s | 0.5895 index | 0.4781 index | 0.6799 index | 10 |
| 2000s | 0.6711 index | 0.6596 index | 0.678 index | 10 |
| 2010s | 0.8881 index | 0.696 index | 1.08 index | 10 |
| 2020s | 1.1 index | 1.09 index | 1.12 index | 6 |
Countries ranked near Tanzania
More gender data for Tanzania
- Child population (UN estimates and projections) 33,294 (2030)
- Child population (UN estimates and projections) (0-14), annual growth 2.01 % change on previous year (2030)
- Population 47,619 (2030)
- Working-age population (UN estimates and projections) 47,619 (2030)
- Population (UN estimates and projections), annual growth rate 3.22 % change on previous year (2030)
- Age population, age 00, female, interpolated 1.16 million (2025)
- Age population, age 00, male, interpolated 1.19 million (2025)
- Age population, age 01, female, interpolated 1.13 million (2025)
- Age population, age 01, male, interpolated 1.16 million (2025)
- Age population, age 02, female, interpolated 1.11 million (2025)
Frequently asked questions
- What is lower secondary school completion rates, adjusted gender parity index in Tanzania?
- Lower secondary school completion rates, adjusted gender parity index in Tanzania was 1.12 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 Tanzania?
- The highest recorded value was 1.12 index in 2025.
- What is the lowest lower secondary school completion rates, adjusted gender parity index recorded in Tanzania?
- The lowest recorded value was 0.3175 index in 1981.
- How does Tanzania rank for lower secondary school completion rates, adjusted gender parity index?
- Tanzania ranks 34th out of 164 countries with data for 2025.
- Is lower secondary school completion rates, adjusted gender parity index rising or falling in Tanzania?
- Over the last ten years it is up 23.6%. The long-run trend across the full record is rising.
- Where does this Tanzania 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.
Download this data
CSV · JSON — 45 observations, free to reuse under CC BY 4.0 (Our World in Data).
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.