Number of one-year-olds who are not vaccinated against diphtheria in Vietnam
Vietnam: Number of one-year-olds who are not vaccinated against diphtheria was 1.58 one-year-olds per square kilometre in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in Vietnam, 1983–2023
Source: Statizoid (derived). Measured in one-year-olds per square kilometre.
Analysis
Vietnam recorded 1.58 one-year-olds per square kilometre for number of one-year-olds who are not vaccinated against diphtheria in 2023.
That represents a change of up 279.2% on the previous year and down 22.2% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in Vietnam peaked at 5.19 one-year-olds per square kilometre in 1984 and was at its lowest, 0.0446 one-year-olds per square kilometre, in 2003.
Vietnam ranks 8th of 192 countries on this measure, in the top 10%.
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 Vietnam, year by year
| Year | one-year-olds per square kilometre | Change |
|---|---|---|
| 1983 | 5.1 one-year-olds per square kilometre | — |
| 1984 | 5.19 one-year-olds per square kilometre | +1.8% |
| 1985 | 3.24 one-year-olds per square kilometre | -37.7% |
| 1986 | 3.19 one-year-olds per square kilometre | -1.5% |
| 1987 | 2.75 one-year-olds per square kilometre | -13.8% |
| 1988 | 1.61 one-year-olds per square kilometre | -41.5% |
| 1989 | 0.6354 one-year-olds per square kilometre | -60.5% |
| 1990 | 0.6476 one-year-olds per square kilometre | +1.9% |
| 1991 | 0.6645 one-year-olds per square kilometre | +2.6% |
| 1992 | 0.6734 one-year-olds per square kilometre | +1.3% |
| 1993 | 0.5024 one-year-olds per square kilometre | -25.4% |
| 1994 | 0.3276 one-year-olds per square kilometre | -34.8% |
| 1995 | 0.3689 one-year-olds per square kilometre | +12.6% |
| 1996 | 0.3009 one-year-olds per square kilometre | -18.4% |
| 1997 | 0.2366 one-year-olds per square kilometre | -21.4% |
| 1998 | 0.2681 one-year-olds per square kilometre | +13.3% |
| 1999 | 0.2963 one-year-olds per square kilometre | +10.5% |
| 2000 | 0.1703 one-year-olds per square kilometre | -42.5% |
| 2001 | 0.1711 one-year-olds per square kilometre | +0.5% |
| 2002 | 1.1 one-year-olds per square kilometre | +542.5% |
| 2003 | 0.0446 one-year-olds per square kilometre | -95.9% |
| 2004 | 0.1806 one-year-olds per square kilometre | +304.6% |
| 2005 | 0.2255 one-year-olds per square kilometre | +24.8% |
| 2006 | 0.2689 one-year-olds per square kilometre | +19.3% |
| 2007 | 0.3607 one-year-olds per square kilometre | +34.1% |
| 2008 | 0.3281 one-year-olds per square kilometre | -9.0% |
| 2009 | 0.1948 one-year-olds per square kilometre | -40.6% |
| 2010 | 0.3382 one-year-olds per square kilometre | +73.6% |
| 2011 | 0.238 one-year-olds per square kilometre | -29.6% |
| 2012 | 0.1446 one-year-olds per square kilometre | -39.2% |
| 2013 | 2.03 one-year-olds per square kilometre | +1304.0% |
| 2014 | 0.2525 one-year-olds per square kilometre | -87.6% |
| 2015 | 0.1567 one-year-olds per square kilometre | -37.9% |
| 2016 | 0.2155 one-year-olds per square kilometre | +37.6% |
| 2017 | 0.3154 one-year-olds per square kilometre | +46.3% |
| 2018 | 1.27 one-year-olds per square kilometre | +301.1% |
| 2019 | 0.5306 one-year-olds per square kilometre | -58.1% |
| 2020 | 0.2808 one-year-olds per square kilometre | -47.1% |
| 2021 | 0.8005 one-year-olds per square kilometre | +185.1% |
| 2022 | 0.4167 one-year-olds per square kilometre | -47.9% |
| 2023 | 1.58 one-year-olds per square kilometre | +279.2% |
Vietnam compared with similar countries
- Vietnam's 1.58 one-year-olds per square kilometre is above the median for upper middle income countries, which is 0.0969 one-year-olds per square kilometre, 16.3× the median. (58 countries reporting)
- Vietnam's 1.58 one-year-olds per square kilometre is above the median for East Asia & Pacific, which is 0.1666 one-year-olds per square kilometre, 9.5× the median. (30 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not vaccinated against diphtheria in Vietnam 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 |
|---|---|---|---|
| 2013 | +1304.0% | 0.1446 one-year-olds per square kilometre | 2.03 one-year-olds per square kilometre |
| 2002 | +542.5% | 0.1711 one-year-olds per square kilometre | 1.1 one-year-olds per square kilometre |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 3.1 one-year-olds per square kilometre | 0.6354 one-year-olds per square kilometre | 5.19 one-year-olds per square kilometre | 7 |
| 1990s | 0.4286 one-year-olds per square kilometre | 0.2366 one-year-olds per square kilometre | 0.6734 one-year-olds per square kilometre | 10 |
| 2000s | 0.3044 one-year-olds per square kilometre | 0.0446 one-year-olds per square kilometre | 1.1 one-year-olds per square kilometre | 10 |
| 2010s | 0.5487 one-year-olds per square kilometre | 0.1446 one-year-olds per square kilometre | 2.03 one-year-olds per square kilometre | 10 |
| 2020s | 0.7696 one-year-olds per square kilometre | 0.2808 one-year-olds per square kilometre | 1.58 one-year-olds per square kilometre | 4 |
Countries ranked near Vietnam
- 5 Nigeria 2.47 one-year-olds per square kilometre compare
- 6 Burundi 1.88 one-year-olds per square kilometre compare
- 7 Monaco 1.68 one-year-olds per square kilometre compare
- 9 Yemen 1.32 one-year-olds per square kilometre compare
- 10 Singapore 1.26 one-year-olds per square kilometre compare
- 11 Gambia 1.23 one-year-olds per square kilometre compare
More health data for Vietnam
- Un projection of annual infant deaths, annual growth rate -1.66 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.0536 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,306 deaths per 1,000 people (2090)
- Number of infants who die before age 1 3,132 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 27 (2025)
- Population ages 00-04, female, annual growth rate -2.12 % 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 0.0322 units per person (2025)
- Population ages 00-04, male, annual growth rate -2.33 % 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 Vietnam?
- Number of one-year-olds who are not vaccinated against diphtheria in Vietnam was 1.58 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 Vietnam?
- The highest recorded value was 5.19 one-year-olds per square kilometre in 1984.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in Vietnam?
- The lowest recorded value was 0.0446 one-year-olds per square kilometre in 2003.
- How does Vietnam rank for number of one-year-olds who are not vaccinated against diphtheria?
- Vietnam ranks 8th out of 192 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in Vietnam?
- Over the last ten years it is down 22.2%. The long-run trend across the full record is volatile.
- Where does this Vietnam 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 — 41 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.