Number of one-year-olds who are not fully vaccinated against in Iran
Iran: Number of one-year-olds who are not fully vaccinated against was 11,990 one-year-olds in 2023. ◆ Volatile
Number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Iran, 1980–2023
Source: WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in one-year-olds.
Analysis
Iran recorded 11,990 one-year-olds for number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in 2023.
That represents a change of down 1.1% on the previous year and down 56.9% over ten years.
Over the whole period, number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Iran peaked at 1.26 million one-year-olds in 1984 and was at its lowest, 10,204 one-year-olds, in 1999.
That places Iran 96th out of 195 countries with data for 2023, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Number of one-year-olds who are not fully vaccinated against in Iran, year by year
| Year | one-year-olds | Change |
|---|---|---|
| 1980 | 1.02 million one-year-olds | — |
| 1981 | 1.14 million one-year-olds | +11.6% |
| 1982 | 997,210 one-year-olds | -12.6% |
| 1983 | 1.20 million one-year-olds | +20.2% |
| 1984 | 1.26 million one-year-olds | +5.3% |
| 1985 | 949,380 one-year-olds | -24.8% |
| 1986 | 846,220 one-year-olds | -10.9% |
| 1987 | 849,240 one-year-olds | +0.4% |
| 1988 | 235,910 one-year-olds | -72.2% |
| 1989 | 349,732 one-year-olds | +48.2% |
| 1990 | 172,032 one-year-olds | -50.8% |
| 1991 | 225,156 one-year-olds | +30.9% |
| 1992 | 54,545 one-year-olds | -75.8% |
| 1993 | 17,014 one-year-olds | -68.8% |
| 1994 | 77,661 one-year-olds | +356.5% |
| 1995 | 27,687 one-year-olds | -64.3% |
| 1996 | 12,254 one-year-olds | -55.7% |
| 1997 | 11,181 one-year-olds | -8.8% |
| 1998 | 10,490 one-year-olds | -6.2% |
| 1999 | 10,204 one-year-olds | -2.7% |
| 2000 | 10,206 one-year-olds | +0.0% |
| 2001 | 41,238 one-year-olds | +304.0% |
| 2002 | 10,377 one-year-olds | -74.8% |
| 2003 | 10,494 one-year-olds | +1.1% |
| 2004 | 10,755 one-year-olds | +2.5% |
| 2005 | 55,546 one-year-olds | +416.5% |
| 2006 | 22,853 one-year-olds | -58.9% |
| 2007 | 11,808 one-year-olds | -48.3% |
| 2008 | 12,378 one-year-olds | +4.8% |
| 2009 | 12,846 one-year-olds | +3.8% |
| 2010 | 13,144 one-year-olds | +2.3% |
| 2011 | 13,350 one-year-olds | +1.6% |
| 2012 | 13,516 one-year-olds | +1.2% |
| 2013 | 27,809 one-year-olds | +105.7% |
| 2014 | 14,459 one-year-olds | -48.0% |
| 2015 | 29,966 one-year-olds | +107.2% |
| 2016 | 15,393 one-year-olds | -48.6% |
| 2017 | 15,546 one-year-olds | +1.0% |
| 2018 | 15,354 one-year-olds | -1.2% |
| 2019 | 14,659 one-year-olds | -4.5% |
| 2020 | 13,486 one-year-olds | -8.0% |
| 2021 | 24,972 one-year-olds | +85.2% |
| 2022 | 12,126 one-year-olds | -51.4% |
| 2023 | 11,990 one-year-olds | -1.1% |
Iran compared with similar countries
- Iran's 11,990 one-year-olds is above the median for upper middle income countries, which is 4,976 one-year-olds, 2.4× the median. (58 countries reporting)
- Iran's 11,990 one-year-olds is below the median for Middle East, North Africa, Afghanistan & Pakistan, which is 15,123 one-year-olds, 79% of the median. (23 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not fully vaccinated against in Iran changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2005 | +416.5% | 10,755 one-year-olds | 55,546 one-year-olds |
| 1994 | +356.5% | 17,014 one-year-olds | 77,661 one-year-olds |
| 2001 | +304.0% | 10,206 one-year-olds | 41,238 one-year-olds |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 885,295 one-year-olds | 235,910 one-year-olds | 1.26 million one-year-olds | 10 |
| 1990s | 61,822 one-year-olds | 10,204 one-year-olds | 225,156 one-year-olds | 10 |
| 2000s | 19,850 one-year-olds | 10,206 one-year-olds | 55,546 one-year-olds | 10 |
| 2010s | 17,320 one-year-olds | 13,144 one-year-olds | 29,966 one-year-olds | 10 |
| 2020s | 15,644 one-year-olds | 11,990 one-year-olds | 24,972 one-year-olds | 4 |
Countries ranked near Iran
More health data for Iran
- Un projection of annual infant deaths, annual growth rate -1.38 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate -0.5627 % change on previous year (2090)
- Number of infants who die before age 1 1,070 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2025)
- Population ages 00-04, female, annual growth rate -1.88 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0311 units per person (2025)
- Population ages 00-04, male, annual growth rate -1.95 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, male, per capita 0.0327 units per person (2025)
Frequently asked questions
- What is number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Iran?
- Number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Iran was 11,990 one-year-olds in 2023, according to WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus recorded in Iran?
- The highest recorded value was 1.26 million one-year-olds in 1984.
- What is the lowest number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus recorded in Iran?
- The lowest recorded value was 10,204 one-year-olds in 1999.
- How does Iran rank for number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus?
- Iran ranks 96th out of 195 countries with data for 2023.
- Is number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus rising or falling in Iran?
- Over the last ten years it is down 56.9%. The long-run trend across the full record is volatile.
- Where does this Iran data come from?
- The figures come from WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus. Statizoid updates them automatically from the source API.
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About this data
Number of one-year-olds who have not had three doses of the combined diphtheria, tetanus and pertussis vaccine in a given year.