Lower secondary school completion rates, adjusted gender parity index in Iran
Iran: Lower secondary school completion rates, adjusted gender parity index was 1.02 index in 2025. ▲ Rising
Lower secondary school completion rates, adjusted gender parity index in Iran, 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 Iran is 1.02 index, measured in 2025. That is the highest value across all 45 years on record.
That represents a change of up 0.2% on the previous year and up 3.4% over ten years.
Over the whole period, lower secondary school completion rates, adjusted gender parity index in Iran peaked at 1.02 index in 2025 and was at its lowest, 0.5451 index, in 1981.
That places Iran 79th 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 Iran, year by year
| Year | index | Change |
|---|---|---|
| 1981 | 0.5451 index | — |
| 1982 | 0.5635 index | +3.4% |
| 1983 | 0.5828 index | +3.4% |
| 1984 | 0.601 index | +3.1% |
| 1985 | 0.6208 index | +3.3% |
| 1986 | 0.6399 index | +3.1% |
| 1987 | 0.6579 index | +2.8% |
| 1988 | 0.6763 index | +2.8% |
| 1989 | 0.6969 index | +3.0% |
| 1990 | 0.7162 index | +2.8% |
| 1991 | 0.7393 index | +3.2% |
| 1992 | 0.763 index | +3.2% |
| 1993 | 0.7874 index | +3.2% |
| 1994 | 0.8122 index | +3.2% |
| 1995 | 0.8357 index | +2.9% |
| 1996 | 0.8626 index | +3.2% |
| 1997 | 0.8906 index | +3.3% |
| 1998 | 0.9193 index | +3.2% |
| 1999 | 0.9406 index | +2.3% |
| 2000 | 0.9538 index | +1.4% |
| 2001 | 0.9631 index | +1.0% |
| 2002 | 0.9698 index | +0.7% |
| 2003 | 0.9713 index | +0.2% |
| 2004 | 0.9709 index | -0.0% |
| 2005 | 0.9735 index | +0.3% |
| 2006 | 0.9791 index | +0.6% |
| 2007 | 0.9861 index | +0.7% |
| 2008 | 0.9882 index | +0.2% |
| 2009 | 0.9844 index | -0.4% |
| 2010 | 0.9784 index | -0.6% |
| 2011 | 0.9738 index | -0.5% |
| 2012 | 0.9741 index | +0.0% |
| 2013 | 0.9776 index | +0.4% |
| 2014 | 0.9827 index | +0.5% |
| 2015 | 0.9882 index | +0.6% |
| 2016 | 0.9928 index | +0.5% |
| 2017 | 0.9982 index | +0.5% |
| 2018 | 1 index | +0.4% |
| 2019 | 1.01 index | +0.4% |
| 2020 | 1.01 index | +0.3% |
| 2021 | 1.01 index | +0.3% |
| 2022 | 1.02 index | +0.2% |
| 2023 | 1.02 index | +0.2% |
| 2024 | 1.02 index | +0.2% |
| 2025 | 1.02 index | +0.2% |
Iran compared with similar countries
- Iran's 1.02 index is below the median for upper middle income countries, which is 1.03 index, 99% of the median. (50 countries reporting)
- Iran's 1.02 index is above the median for Middle East, North Africa, Afghanistan & Pakistan, which is 1.02 index, 1.0× the median. (16 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0.6205 index | 0.5451 index | 0.6969 index | 9 |
| 1990s | 0.8267 index | 0.7162 index | 0.9406 index | 10 |
| 2000s | 0.974 index | 0.9538 index | 0.9882 index | 10 |
| 2010s | 0.9874 index | 0.9738 index | 1.01 index | 10 |
| 2020s | 1.02 index | 1.01 index | 1.02 index | 6 |
Countries ranked near Iran
More gender data for Iran
- Child population (UN estimates and projections) 18,410 (2030)
- Child population (UN estimates and projections) (0-14), annual growth -2.73 % change on previous year (2030)
- Population 77,077 (2030)
- Working-age population (UN estimates and projections) 77,077 (2030)
- Population (UN estimates and projections), annual growth rate 1.34 % change on previous year (2030)
- Age population, age 00, female, interpolated 552,656 (2025)
- Age population, age 00, male, interpolated 580,401 (2025)
- Age population, age 01, female, interpolated 565,065 (2025)
- Age population, age 01, male, interpolated 593,686 (2025)
- Age population, age 02, female, interpolated 576,359 (2025)
Frequently asked questions
- What is lower secondary school completion rates, adjusted gender parity index in Iran?
- Lower secondary school completion rates, adjusted gender parity index in Iran was 1.02 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 Iran?
- The highest recorded value was 1.02 index in 2025.
- What is the lowest lower secondary school completion rates, adjusted gender parity index recorded in Iran?
- The lowest recorded value was 0.5451 index in 1981.
- How does Iran rank for lower secondary school completion rates, adjusted gender parity index?
- Iran ranks 79th out of 164 countries with data for 2025.
- Is lower secondary school completion rates, adjusted gender parity index rising or falling in Iran?
- Over the last ten years it is up 3.4%. The long-run trend across the full record is rising.
- Where does this Iran 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.