Number of one-year-olds who are not fully vaccinated against in Ireland
Ireland: Number of one-year-olds who are not fully vaccinated against was 4,062 one-year-olds in 2023. ◆ Volatile
Number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Ireland, 1980–2023
Source: WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in one-year-olds.
Analysis
The most recent figure for number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Ireland is 4,062 one-year-olds, measured in 2023.
The figure is down 1.6% on the previous year and up 44.5% over ten years.
Over the whole period, number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Ireland peaked at 47,068 one-year-olds in 1980 and was at its lowest, 2,710 one-year-olds, in 2014.
Ireland ranks 122nd of 195 countries on this measure, 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 Ireland, year by year
| Year | one-year-olds | Change |
|---|---|---|
| 1980 | 47,068 one-year-olds | — |
| 1981 | 46,679 one-year-olds | -0.8% |
| 1982 | 41,207 one-year-olds | -11.7% |
| 1983 | 40,781 one-year-olds | -1.0% |
| 1984 | 37,148 one-year-olds | -8.9% |
| 1985 | 35,287 one-year-olds | -5.0% |
| 1986 | 34,752 one-year-olds | -1.5% |
| 1987 | 34,280 one-year-olds | -1.4% |
| 1988 | 34,093 one-year-olds | -0.5% |
| 1989 | 19,978 one-year-olds | -41.4% |
| 1990 | 19,033 one-year-olds | -4.7% |
| 1991 | 17,633 one-year-olds | -7.4% |
| 1992 | 17,085 one-year-olds | -3.1% |
| 1993 | 15,653 one-year-olds | -8.4% |
| 1994 | 14,596 one-year-olds | -6.8% |
| 1995 | 13,262 one-year-olds | -9.1% |
| 1996 | 12,736 one-year-olds | -4.0% |
| 1997 | 12,003 one-year-olds | -5.8% |
| 1998 | 8,274 one-year-olds | -31.1% |
| 1999 | 7,455 one-year-olds | -9.9% |
| 2000 | 7,562 one-year-olds | +1.4% |
| 2001 | 8,744 one-year-olds | +15.6% |
| 2002 | 9,342 one-year-olds | +6.8% |
| 2003 | 7,971 one-year-olds | -14.7% |
| 2004 | 6,612 one-year-olds | -17.0% |
| 2005 | 6,095 one-year-olds | -7.8% |
| 2006 | 5,471 one-year-olds | -10.2% |
| 2007 | 5,020 one-year-olds | -8.2% |
| 2008 | 4,699 one-year-olds | -6.4% |
| 2009 | 4,233 one-year-olds | -9.9% |
| 2010 | 4,314 one-year-olds | +1.9% |
| 2011 | 3,604 one-year-olds | -16.5% |
| 2012 | 3,589 one-year-olds | -0.4% |
| 2013 | 2,811 one-year-olds | -21.7% |
| 2014 | 2,710 one-year-olds | -3.6% |
| 2015 | 3,282 one-year-olds | +21.1% |
| 2016 | 3,185 one-year-olds | -3.0% |
| 2017 | 3,162 one-year-olds | -0.7% |
| 2018 | 3,790 one-year-olds | +19.9% |
| 2019 | 3,727 one-year-olds | -1.7% |
| 2020 | 3,628 one-year-olds | -2.6% |
| 2021 | 3,480 one-year-olds | -4.1% |
| 2022 | 4,130 one-year-olds | +18.7% |
| 2023 | 4,062 one-year-olds | -1.6% |
Ireland compared with similar countries
- Ireland's 4,062 one-year-olds is above the median for high income countries, which is 2,216 one-year-olds, 1.8× the median. (63 countries reporting)
- Ireland's 4,062 one-year-olds is below the median for Europe & Central Asia, which is 4,301 one-year-olds, 94% of the median. (51 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not fully vaccinated against in Ireland 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 |
|---|---|---|---|
| 1989 | -41.4% | 34,093 one-year-olds | 19,978 one-year-olds |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 37,127 one-year-olds | 19,978 one-year-olds | 47,068 one-year-olds | 10 |
| 1990s | 13,773 one-year-olds | 7,455 one-year-olds | 19,033 one-year-olds | 10 |
| 2000s | 6,575 one-year-olds | 4,233 one-year-olds | 9,342 one-year-olds | 10 |
| 2010s | 3,418 one-year-olds | 2,710 one-year-olds | 4,314 one-year-olds | 10 |
| 2020s | 3,825 one-year-olds | 3,480 one-year-olds | 4,130 one-year-olds | 4 |
Countries ranked near Ireland
More health data for Ireland
- Un projection of annual infant deaths, annual growth rate -4.76 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.89 % change on previous year (2090)
- Number of infants who die before age 1 20 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2025)
- Population ages 00-04, female, annual growth rate -0.7228 % 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 0.026 units per person (2025)
- Population ages 00-04, male, annual growth rate -0.6489 % 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 0.0274 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 Ireland?
- Number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus in Ireland was 4,062 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 Ireland?
- The highest recorded value was 47,068 one-year-olds in 1980.
- What is the lowest number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus recorded in Ireland?
- The lowest recorded value was 2,710 one-year-olds in 2014.
- How does Ireland rank for number of one-year-olds who are not fully vaccinated against diphtheria, pertussis and tetanus?
- Ireland ranks 122nd 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 Ireland?
- Over the last ten years it is up 44.5%. The long-run trend across the full record is volatile.
- Where does this Ireland 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.