Number of one-year-olds who are not vaccinated against diphtheria in Iran
Iran: Number of one-year-olds who are not vaccinated against diphtheria was 0.0001 one-year-olds per person in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in Iran, 1980–2023
Source: Statizoid (derived). Measured in one-year-olds per person.
Analysis
In 2023, number of one-year-olds who are not vaccinated against diphtheria in Iran stood at 0.0001 one-year-olds per person. That is the lowest value across all 44 years on record.
The figure is down 2.3% on the previous year and down 61.7% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in Iran peaked at 0.0272 one-year-olds per person in 1981 and was at its lowest, 0.0001 one-year-olds per person, in 2023.
Iran ranks 177th of 192 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Number of one-year-olds who are not vaccinated against diphtheria in Iran, year by year
| Year | one-year-olds per person | Change |
|---|---|---|
| 1980 | 0.0257 one-year-olds per person | — |
| 1981 | 0.0272 one-year-olds per person | +5.9% |
| 1982 | 0.0225 one-year-olds per person | -17.1% |
| 1983 | 0.026 one-year-olds per person | +15.6% |
| 1984 | 0.0264 one-year-olds per person | +1.4% |
| 1985 | 0.0191 one-year-olds per person | -27.5% |
| 1986 | 0.0164 one-year-olds per person | -14.1% |
| 1987 | 0.0159 one-year-olds per person | -3.2% |
| 1988 | 0.0043 one-year-olds per person | -73.1% |
| 1989 | 0.0062 one-year-olds per person | +44.0% |
| 1990 | 0.0029 one-year-olds per person | -52.2% |
| 1991 | 0.0038 one-year-olds per person | +27.4% |
| 1992 | 0.0009 one-year-olds per person | -76.2% |
| 1993 | 0.0003 one-year-olds per person | -68.9% |
| 1994 | 0.0013 one-year-olds per person | +355.6% |
| 1995 | 0.0004 one-year-olds per person | -64.7% |
| 1996 | 0.0002 one-year-olds per person | -56.2% |
| 1997 | 0.0002 one-year-olds per person | -9.8% |
| 1998 | 0.0002 one-year-olds per person | -7.5% |
| 1999 | 0.0002 one-year-olds per person | -4.1% |
| 2000 | 0.0002 one-year-olds per person | -1.4% |
| 2001 | 0.0006 one-year-olds per person | +297.9% |
| 2002 | 0.0002 one-year-olds per person | -75.0% |
| 2003 | 0.0002 one-year-olds per person | +0.0% |
| 2004 | 0.0002 one-year-olds per person | +0.3% |
| 2005 | 0.0008 one-year-olds per person | +405.2% |
| 2006 | 0.0003 one-year-olds per person | -59.7% |
| 2007 | 0.0002 one-year-olds per person | -49.2% |
| 2008 | 0.0002 one-year-olds per person | +3.6% |
| 2009 | 0.0002 one-year-olds per person | +2.5% |
| 2010 | 0.0002 one-year-olds per person | +1.0% |
| 2011 | 0.0002 one-year-olds per person | +0.3% |
| 2012 | 0.0002 one-year-olds per person | -0.0% |
| 2013 | 0.0003 one-year-olds per person | +103.1% |
| 2014 | 0.0002 one-year-olds per person | -48.7% |
| 2015 | 0.0004 one-year-olds per person | +104.4% |
| 2016 | 0.0002 one-year-olds per person | -49.4% |
| 2017 | 0.0002 one-year-olds per person | -0.4% |
| 2018 | 0.0002 one-year-olds per person | -2.5% |
| 2019 | 0.0002 one-year-olds per person | -5.5% |
| 2020 | 0.0002 one-year-olds per person | -8.7% |
| 2021 | 0.0003 one-year-olds per person | +83.6% |
| 2022 | 0.0001 one-year-olds per person | -52.0% |
| 2023 | 0.0001 one-year-olds per person | -2.3% |
Iran compared with similar countries
- Iran's 0.0001 one-year-olds per person is below the median for upper middle income countries, which is 0.0015 one-year-olds per person, 9% of the median. (58 countries reporting)
- Iran's 0.0001 one-year-olds per person is below the median for Middle East, North Africa, Afghanistan & Pakistan, which is 0.0008 one-year-olds per person, 16% of the median. (23 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not vaccinated against diphtheria 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 | +405.2% | 0.0002 one-year-olds per person | 0.0008 one-year-olds per person |
| 1994 | +355.6% | 0.0003 one-year-olds per person | 0.0013 one-year-olds per person |
| 2001 | +297.9% | 0.0002 one-year-olds per person | 0.0006 one-year-olds per person |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0.019 one-year-olds per person | 0.0043 one-year-olds per person | 0.0272 one-year-olds per person | 10 |
| 1990s | 0.001 one-year-olds per person | 0.0002 one-year-olds per person | 0.0038 one-year-olds per person | 10 |
| 2000s | 0.0003 one-year-olds per person | 0.0002 one-year-olds per person | 0.0008 one-year-olds per person | 10 |
| 2010s | 0.0002 one-year-olds per person | 0.0002 one-year-olds per person | 0.0004 one-year-olds per person | 10 |
| 2020s | 0.0002 one-year-olds per person | 0.0001 one-year-olds per person | 0.0003 one-year-olds per person | 4 |
Countries ranked near Iran
- 174 Singapore 0.0002 one-year-olds per person compare
- 175 Sri Lanka 0.0001 one-year-olds per person compare
- 176 Brunei 0.0001 one-year-olds per person compare
- 178 North Korea 0.0001 one-year-olds per person compare
- 179 Japan 0.0001 one-year-olds per person compare
- 180 Turkey 0.0001 one-year-olds per person compare
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)
- Estimated changes in temperature-related death rates compared to projected death rates 1,361 deaths per 1,000 people (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)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against diphtheria in Iran?
- Number of one-year-olds who are not vaccinated against diphtheria in Iran was 0.0001 one-year-olds per person in 2023, according to Statizoid (derived).
- What is the highest number of one-year-olds who are not vaccinated against diphtheria recorded in Iran?
- The highest recorded value was 0.0272 one-year-olds per person in 1981.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in Iran?
- The lowest recorded value was 0.0001 one-year-olds per person in 2023.
- How does Iran rank for number of one-year-olds who are not vaccinated against diphtheria?
- Iran ranks 177th out of 192 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in Iran?
- Over the last ten years it is down 61.7%. The long-run trend across the full record is volatile.
- Where does this Iran data come from?
- The figures come from Statizoid (derived), published as part of Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per capita. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 44 observations, free to reuse under Derived by Statizoid from the sources named on the page.
How this figure is calculated
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by Population, total, matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus ÷ Population, total
Computed from
- Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data
- Population, total World Population Prospects, United Nations (UN)
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by Population, total, matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.