School life expectancy, secondary, both sexes in Iran, Islamic Republic of
Iran, Islamic Republic of: School life expectancy, secondary, both sexes was 5.09 years in 2023. ▲ Rising
School life expectancy, secondary, both sexes in Iran, Islamic Republic of, 1971–2023
Source: UNESCO Institute for Statistics. Measured in years.
Analysis
The most recent figure for school life expectancy, secondary, both sexes in Iran, Islamic Republic of is 5.09 years, measured in 2023.
Compared with earlier readings it is down 0.6% on the previous year and up 4.7% over ten years.
Over the whole period, school life expectancy, secondary, both sexes in Iran, Islamic Republic of peaked at 5.74 years in 2012 and was at its lowest, 1.55 years, in 1971.
That places Iran, Islamic Republic of 134th out of 214 countries with data for 2023, putting it in the middle of the range.
The long-run direction has been consistently rising across the 38 years of available data.
School life expectancy, secondary, both sexes in Iran, Islamic Republic of, year by year
| Year | years | Change |
|---|---|---|
| 1971 | 1.55 years | — |
| 1972 | 2 years | +28.4% |
| 1973 | 2.11 years | +5.9% |
| 1974 | 2.26 years | +6.9% |
| 1975 | 2.48 years | +9.9% |
| 1976 | 2.67 years | +7.4% |
| 1977 | 2.82 years | +5.8% |
| 1985 | 3.04 years | +7.8% |
| 1988 | 3.5 years | +15.0% |
| 1990 | 3.92 years | +12.0% |
| 1991 | 4 years | +2.3% |
| 1992 | 4.17 years | +4.1% |
| 1993 | 4.44 years | +6.4% |
| 1994 | 4.7 years | +5.9% |
| 1995 | 4.8 years | +2.1% |
| 1997 | 4.99 years | +4.0% |
| 1999 | 5.21 years | +4.5% |
| 2000 | 5.25 years | +0.7% |
| 2001 | 5.22 years | -0.6% |
| 2002 | 5.23 years | +0.2% |
| 2003 | 5.22 years | -0.2% |
| 2004 | 5.22 years | -0.0% |
| 2005 | 5.21 years | -0.1% |
| 2006 | 5.32 years | +2.0% |
| 2007 | 5.3 years | -0.4% |
| 2008 | 5.52 years | +4.2% |
| 2009 | 5.63 years | +1.9% |
| 2010 | 5.52 years | -1.9% |
| 2011 | 5.66 years | +2.5% |
| 2012 | 5.74 years | +1.5% |
| 2013 | 4.86 years | -15.3% |
| 2014 | 4.89 years | +0.5% |
| 2015 | 4.84 years | -1.0% |
| 2016 | 4.94 years | +2.1% |
| 2017 | 4.93 years | -0.2% |
| 2020 | 5.1 years | +3.5% |
| 2022 | 5.12 years | +0.3% |
| 2023 | 5.09 years | -0.6% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1970s | 2.27 years | 1.55 years | 2.82 years | 7 |
| 1980s | 3.27 years | 3.04 years | 3.5 years | 2 |
| 1990s | 4.53 years | 3.92 years | 5.21 years | 8 |
| 2000s | 5.31 years | 5.21 years | 5.63 years | 10 |
| 2010s | 5.17 years | 4.84 years | 5.74 years | 8 |
| 2020s | 5.1 years | 5.09 years | 5.12 years | 3 |
Countries ranked near Iran, Islamic Republic of
More education data for Iran, Islamic Republic of
- Primary education, teachers, gaps filled 372,396 (2023)
- Duration of pre primary education, annual growth rate 0 % change on previous year (2025)
- Duration of pre primary education 1 (2025)
- Official entrance age to pre primary education 5 (2025)
- Population ages 15-64 69.4% (2025)
- Population ages 0-14 22.0% (2025)
- Lower secondary school starting age 12 years (2025)
- Primary school starting age 6 years (2025)
- Primary secondary enrollment completion rates, gaps filled 101.96 (2023)
- School enrollment, primary 102.0% (2023)
Frequently asked questions
- What is school life expectancy, secondary, both sexes in Iran, Islamic Republic of?
- School life expectancy, secondary, both sexes in Iran, Islamic Republic of was 5.09 years in 2023, according to UNESCO Institute for Statistics.
- What is the highest school life expectancy, secondary, both sexes recorded in Iran, Islamic Republic of?
- The highest recorded value was 5.74 years in 2012.
- What is the lowest school life expectancy, secondary, both sexes recorded in Iran, Islamic Republic of?
- The lowest recorded value was 1.55 years in 1971.
- How does Iran, Islamic Republic of rank for school life expectancy, secondary, both sexes?
- Iran, Islamic Republic of ranks 134th out of 214 countries with data for 2023.
- Is school life expectancy, secondary, both sexes rising or falling in Iran, Islamic Republic of?
- Over the last ten years it is up 4.7%. The long-run trend across the full record is rising.
- Where does this Iran, Islamic Republic of data come from?
- The figures come from UNESCO Institute for Statistics, published as part of School life expectancy, secondary, both sexes (years). Statizoid updates them automatically from the source API.
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About this data
February 2026 Data Release