Number of one-year-olds who are not vaccinated against diphtheria in South Korea
South Korea: Number of one-year-olds who are not vaccinated against diphtheria was 0.0521 one-year-olds per square kilometre in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in South Korea, 1981–2023
Source: Statizoid (derived). Measured in one-year-olds per square kilometre.
Analysis
South Korea recorded 0.0521 one-year-olds per square kilometre for number of one-year-olds who are not vaccinated against diphtheria in 2023.
Compared with earlier readings it is down 3.1% on the previous year and up 10.9% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in South Korea peaked at 3.29 one-year-olds per square kilometre in 1982 and was at its lowest, 0.0462 one-year-olds per square kilometre, in 2014.
That places South Korea 132nd out of 192 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 vaccinated against diphtheria in South Korea, year by year
| Year | one-year-olds per square kilometre | Change |
|---|---|---|
| 1981 | 3.25 one-year-olds per square kilometre | — |
| 1982 | 3.29 one-year-olds per square kilometre | +1.5% |
| 1983 | 2.62 one-year-olds per square kilometre | -20.4% |
| 1984 | 1.94 one-year-olds per square kilometre | -26.0% |
| 1985 | 1.8 one-year-olds per square kilometre | -7.5% |
| 1986 | 1.65 one-year-olds per square kilometre | -7.8% |
| 1987 | 2.96 one-year-olds per square kilometre | +79.2% |
| 1988 | 2.96 one-year-olds per square kilometre | -0.2% |
| 1989 | 0.7718 one-year-olds per square kilometre | -73.9% |
| 1990 | 1.83 one-year-olds per square kilometre | +136.5% |
| 1991 | 1.45 one-year-olds per square kilometre | -20.7% |
| 1992 | 1.11 one-year-olds per square kilometre | -23.2% |
| 1993 | 0.8675 one-year-olds per square kilometre | -21.9% |
| 1994 | 0.5166 one-year-olds per square kilometre | -40.5% |
| 1995 | 0.0736 one-year-olds per square kilometre | -85.7% |
| 1996 | 0.718 one-year-olds per square kilometre | +875.1% |
| 1997 | 1.4 one-year-olds per square kilometre | +95.0% |
| 1998 | 1.79 one-year-olds per square kilometre | +27.7% |
| 1999 | 0.9371 one-year-olds per square kilometre | -47.6% |
| 2000 | 0.1932 one-year-olds per square kilometre | -79.4% |
| 2001 | 0.189 one-year-olds per square kilometre | -2.2% |
| 2002 | 0.1811 one-year-olds per square kilometre | -4.2% |
| 2003 | 0.1644 one-year-olds per square kilometre | -9.2% |
| 2004 | 0.6123 one-year-olds per square kilometre | +272.4% |
| 2005 | 0.1949 one-year-olds per square kilometre | -68.2% |
| 2006 | 0.0919 one-year-olds per square kilometre | -52.8% |
| 2007 | 0.4025 one-year-olds per square kilometre | +337.9% |
| 2008 | 0.2717 one-year-olds per square kilometre | -32.5% |
| 2009 | 0.2754 one-year-olds per square kilometre | +1.4% |
| 2010 | 0.2816 one-year-olds per square kilometre | +2.2% |
| 2011 | 0.0479 one-year-olds per square kilometre | -83.0% |
| 2012 | 0.0475 one-year-olds per square kilometre | -0.9% |
| 2013 | 0.047 one-year-olds per square kilometre | -1.0% |
| 2014 | 0.0462 one-year-olds per square kilometre | -1.6% |
| 2015 | 0.0898 one-year-olds per square kilometre | +94.2% |
| 2016 | 0.0882 one-year-olds per square kilometre | -1.7% |
| 2017 | 0.1258 one-year-olds per square kilometre | +42.6% |
| 2018 | 0.0766 one-year-olds per square kilometre | -39.1% |
| 2019 | 0.07 one-year-olds per square kilometre | -8.6% |
| 2020 | 0.0646 one-year-olds per square kilometre | -7.7% |
| 2021 | 0.0584 one-year-olds per square kilometre | -9.6% |
| 2022 | 0.0538 one-year-olds per square kilometre | -7.9% |
| 2023 | 0.0521 one-year-olds per square kilometre | -3.1% |
South Korea compared with similar countries
- South Korea's 0.0521 one-year-olds per square kilometre is above the median for high income countries, which is 0.048 one-year-olds per square kilometre, 1.1× the median. (63 countries reporting)
- South Korea's 0.0521 one-year-olds per square kilometre is below the median for East Asia & Pacific, which is 0.1666 one-year-olds per square kilometre, 31% of the median. (30 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not vaccinated against diphtheria in South Korea 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 |
|---|---|---|---|
| 1996 | +875.1% | 0.0736 one-year-olds per square kilometre | 0.718 one-year-olds per square kilometre |
| 2007 | +337.9% | 0.0919 one-year-olds per square kilometre | 0.4025 one-year-olds per square kilometre |
| 2004 | +272.4% | 0.1644 one-year-olds per square kilometre | 0.6123 one-year-olds per square kilometre |
| 1990 | +136.5% | 0.7718 one-year-olds per square kilometre | 1.83 one-year-olds per square kilometre |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 2.36 one-year-olds per square kilometre | 0.7718 one-year-olds per square kilometre | 3.29 one-year-olds per square kilometre | 9 |
| 1990s | 1.07 one-year-olds per square kilometre | 0.0736 one-year-olds per square kilometre | 1.83 one-year-olds per square kilometre | 10 |
| 2000s | 0.2576 one-year-olds per square kilometre | 0.0919 one-year-olds per square kilometre | 0.6123 one-year-olds per square kilometre | 10 |
| 2010s | 0.0921 one-year-olds per square kilometre | 0.0462 one-year-olds per square kilometre | 0.2816 one-year-olds per square kilometre | 10 |
| 2020s | 0.0572 one-year-olds per square kilometre | 0.0521 one-year-olds per square kilometre | 0.0646 one-year-olds per square kilometre | 4 |
Countries ranked near South Korea
- 129 Bahamas 0.0564 one-year-olds per square kilometre compare
- 130 Poland 0.0539 one-year-olds per square kilometre compare
- 131 Sri Lanka 0.0525 one-year-olds per square kilometre compare
- 133 France 0.0516 one-year-olds per square kilometre compare
- 134 Serbia 0.0515 one-year-olds per square kilometre compare
- 135 Spain 0.048 one-year-olds per square kilometre compare
More health data for South Korea
- Un projection of annual infant deaths, annual growth rate -1.43 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.1935 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 2,072 deaths per 1,000 people (2090)
- Number of infants who die before age 1 69 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 0 (2025)
- Population ages 00-04, female, annual growth rate -2.66 % 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 0.0118 units per person (2025)
- Population ages 00-04, male, annual growth rate -2.76 % 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 South Korea?
- Number of one-year-olds who are not vaccinated against diphtheria in South Korea was 0.0521 one-year-olds per square kilometre in 2023, according to Statizoid (derived).
- What is the highest number of one-year-olds who are not vaccinated against diphtheria recorded in South Korea?
- The highest recorded value was 3.29 one-year-olds per square kilometre in 1982.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in South Korea?
- The lowest recorded value was 0.0462 one-year-olds per square kilometre in 2014.
- How does South Korea rank for number of one-year-olds who are not vaccinated against diphtheria?
- South Korea ranks 132nd out of 192 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in South Korea?
- Over the last ten years it is up 10.9%. The long-run trend across the full record is volatile.
- Where does this South Korea 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 square kilometre. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 43 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 Land area (sq. km), 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 ÷ Land area (sq. km)
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
- Land area FAOSTAT, Food and Agriculture Organization of the United Nations (FAO)
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 Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.