Number of one-year-olds who are not vaccinated against diphtheria in Tuvalu
Tuvalu: Number of one-year-olds who are not vaccinated against diphtheria was 0.438 one-year-olds per square kilometre in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in Tuvalu, 1980–2023
Source: Statizoid (derived). Measured in one-year-olds per square kilometre.
Analysis
Tuvalu recorded 0.438 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 down 32.4% on the previous year and down 52.4% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in Tuvalu peaked at 5.19 one-year-olds per square kilometre in 1984 and was at its lowest, 0.0797 one-year-olds per square kilometre, in 2008.
That places Tuvalu 39th out of 192 countries with data for 2023, putting it in the top 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 Tuvalu, year by year
| Year | one-year-olds per square kilometre | Change |
|---|---|---|
| 1980 | 4.07 one-year-olds per square kilometre | — |
| 1981 | 3.77 one-year-olds per square kilometre | -7.4% |
| 1982 | 2.15 one-year-olds per square kilometre | -43.1% |
| 1983 | 1.67 one-year-olds per square kilometre | -22.1% |
| 1984 | 5.19 one-year-olds per square kilometre | +210.0% |
| 1985 | 4.18 one-year-olds per square kilometre | -19.5% |
| 1986 | 2.43 one-year-olds per square kilometre | -41.8% |
| 1987 | 3.66 one-year-olds per square kilometre | +50.7% |
| 1988 | 0.968 one-year-olds per square kilometre | -73.6% |
| 1989 | 1.31 one-year-olds per square kilometre | +35.8% |
| 1990 | 0.0883 one-year-olds per square kilometre | -93.3% |
| 1991 | 2.32 one-year-olds per square kilometre | +2529.4% |
| 1992 | 2.69 one-year-olds per square kilometre | +15.8% |
| 1993 | 1.8 one-year-olds per square kilometre | -33.1% |
| 1994 | 0.0887 one-year-olds per square kilometre | -95.1% |
| 1995 | 1.12 one-year-olds per square kilometre | +1165.8% |
| 1996 | 0.255 one-year-olds per square kilometre | -77.3% |
| 1997 | 1.93 one-year-olds per square kilometre | +657.6% |
| 1998 | 0.498 one-year-olds per square kilometre | -74.2% |
| 1999 | 1.39 one-year-olds per square kilometre | +179.9% |
| 2000 | 1.47 one-year-olds per square kilometre | +5.5% |
| 2001 | 0.3227 one-year-olds per square kilometre | -78.0% |
| 2002 | 0.1587 one-year-olds per square kilometre | -50.8% |
| 2003 | 0.539 one-year-olds per square kilometre | +239.7% |
| 2004 | 0.1513 one-year-olds per square kilometre | -71.9% |
| 2005 | 0.532 one-year-olds per square kilometre | +251.5% |
| 2006 | 0.231 one-year-olds per square kilometre | -56.6% |
| 2007 | 0.234 one-year-olds per square kilometre | +1.3% |
| 2008 | 0.0797 one-year-olds per square kilometre | -66.0% |
| 2009 | 0.976 one-year-olds per square kilometre | +1125.1% |
| 2010 | 0.924 one-year-olds per square kilometre | -5.3% |
| 2011 | 0.3493 one-year-olds per square kilometre | -62.2% |
| 2012 | 0.272 one-year-olds per square kilometre | -22.1% |
| 2013 | 0.92 one-year-olds per square kilometre | +238.2% |
| 2014 | 0.9607 one-year-olds per square kilometre | +4.4% |
| 2015 | 0.3307 one-year-olds per square kilometre | -65.6% |
| 2016 | 0.486 one-year-olds per square kilometre | +47.0% |
| 2017 | 0.312 one-year-olds per square kilometre | -35.8% |
| 2018 | 0.8323 one-year-olds per square kilometre | +166.8% |
| 2019 | 0.6213 one-year-olds per square kilometre | -25.4% |
| 2020 | 0.395 one-year-olds per square kilometre | -36.4% |
| 2021 | 0.454 one-year-olds per square kilometre | +14.9% |
| 2022 | 0.648 one-year-olds per square kilometre | +42.7% |
| 2023 | 0.438 one-year-olds per square kilometre | -32.4% |
Tuvalu compared with similar countries
- Tuvalu's 0.438 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, 4.5× the median. (58 countries reporting)
- Tuvalu's 0.438 one-year-olds per square kilometre is above the median for East Asia & Pacific, which is 0.1666 one-year-olds per square kilometre, 2.6× the median. (30 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not vaccinated against diphtheria in Tuvalu 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 |
|---|---|---|---|
| 1991 | +2529.4% | 0.0883 one-year-olds per square kilometre | 2.32 one-year-olds per square kilometre |
| 1995 | +1165.8% | 0.0887 one-year-olds per square kilometre | 1.12 one-year-olds per square kilometre |
| 2009 | +1125.1% | 0.0797 one-year-olds per square kilometre | 0.976 one-year-olds per square kilometre |
| 1997 | +657.6% | 0.255 one-year-olds per square kilometre | 1.93 one-year-olds per square kilometre |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 2.94 one-year-olds per square kilometre | 0.968 one-year-olds per square kilometre | 5.19 one-year-olds per square kilometre | 10 |
| 1990s | 1.22 one-year-olds per square kilometre | 0.0883 one-year-olds per square kilometre | 2.69 one-year-olds per square kilometre | 10 |
| 2000s | 0.4694 one-year-olds per square kilometre | 0.0797 one-year-olds per square kilometre | 1.47 one-year-olds per square kilometre | 10 |
| 2010s | 0.6008 one-year-olds per square kilometre | 0.272 one-year-olds per square kilometre | 0.9607 one-year-olds per square kilometre | 10 |
| 2020s | 0.4838 one-year-olds per square kilometre | 0.395 one-year-olds per square kilometre | 0.648 one-year-olds per square kilometre | 4 |
Countries ranked near Tuvalu
- 36 Equatorial Guinea 0.4735 one-year-olds per square kilometre compare
- 37 Cameroon 0.4712 one-year-olds per square kilometre compare
- 38 Mozambique 0.4431 one-year-olds per square kilometre compare
- 40 Netherlands 0.4319 one-year-olds per square kilometre compare
- 41 Dominica 0.4242 one-year-olds per square kilometre compare
- 42 Tanzania 0.424 one-year-olds per square kilometre compare
More health data for Tuvalu
- Un projection of annual infant deaths, annual growth rate -100 % change on previous year (2095)
- Heat deaths vs projected death rates, annual growth rate 1.12 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 985 deaths per 1,000 people (2090)
- Number of infants who die before age 1 0 deaths (2100)
- Deaths in armed conflicts based on where they occurred 0 deaths (2026)
- Deaths in armed conflicts by region 0 deaths (2026)
- Population, male, annual growth rate -1.56 % change on previous year (2025)
- Population, male, per capita 0.5119 units per person (2025)
- Population, male, per unit of GDP 0.0001 units per US$ of GDP (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 Tuvalu?
- Number of one-year-olds who are not vaccinated against diphtheria in Tuvalu was 0.438 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 Tuvalu?
- 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 Tuvalu?
- The lowest recorded value was 0.0797 one-year-olds per square kilometre in 2008.
- How does Tuvalu rank for number of one-year-olds who are not vaccinated against diphtheria?
- Tuvalu ranks 39th out of 192 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in Tuvalu?
- Over the last ten years it is down 52.4%. The long-run trend across the full record is volatile.
- Where does this Tuvalu 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 — 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 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.