Number of one-year-olds who are not vaccinated against diphtheria in San Marino
San Marino: Number of one-year-olds who are not vaccinated against diphtheria was 0.3315 one-year-olds per square kilometre in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in San Marino, 1983–2023
Source: Statizoid (derived). Measured in one-year-olds per square kilometre.
Analysis
In 2023, number of one-year-olds who are not vaccinated against diphtheria in San Marino stood at 0.3315 one-year-olds per square kilometre.
Compared with earlier readings it is up 7.2% on the previous year and down 55.7% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in San Marino peaked at 0.8533 one-year-olds per square kilometre in 2014 and was at its lowest, 0.0362 one-year-olds per square kilometre, in 1987.
That places San Marino 56th 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 San Marino, year by year
| Year | one-year-olds per square kilometre | Change |
|---|---|---|
| 1983 | 0.0407 one-year-olds per square kilometre | — |
| 1984 | 0.0397 one-year-olds per square kilometre | -2.5% |
| 1985 | 0.039 one-year-olds per square kilometre | -1.7% |
| 1986 | 0.0375 one-year-olds per square kilometre | -3.8% |
| 1987 | 0.0362 one-year-olds per square kilometre | -3.6% |
| 1988 | 0.0382 one-year-olds per square kilometre | +5.5% |
| 1989 | 0.0382 one-year-olds per square kilometre | +0.0% |
| 1990 | 0.0395 one-year-olds per square kilometre | +3.5% |
| 1991 | 0.0417 one-year-olds per square kilometre | +5.5% |
| 1992 | 0.0405 one-year-olds per square kilometre | -2.8% |
| 1993 | 0.0405 one-year-olds per square kilometre | +0.0% |
| 1994 | 0.52 one-year-olds per square kilometre | +1184.0% |
| 1995 | 0.043 one-year-olds per square kilometre | -91.7% |
| 1996 | 0.0428 one-year-olds per square kilometre | -0.4% |
| 1997 | 0.045 one-year-olds per square kilometre | +5.1% |
| 1998 | 0.046 one-year-olds per square kilometre | +2.2% |
| 1999 | 0.0468 one-year-olds per square kilometre | +1.8% |
| 2000 | 0.0953 one-year-olds per square kilometre | +103.6% |
| 2001 | 0.145 one-year-olds per square kilometre | +52.1% |
| 2002 | 0.1953 one-year-olds per square kilometre | +34.7% |
| 2003 | 0.1987 one-year-olds per square kilometre | +1.7% |
| 2004 | 0.2517 one-year-olds per square kilometre | +26.7% |
| 2005 | 0.2033 one-year-olds per square kilometre | -19.2% |
| 2006 | 0.412 one-year-olds per square kilometre | +102.6% |
| 2007 | 0.471 one-year-olds per square kilometre | +14.3% |
| 2008 | 0.4785 one-year-olds per square kilometre | +1.6% |
| 2009 | 0.5383 one-year-olds per square kilometre | +12.5% |
| 2010 | 0.5467 one-year-olds per square kilometre | +1.5% |
| 2011 | 0.456 one-year-olds per square kilometre | -16.6% |
| 2012 | 0.6362 one-year-olds per square kilometre | +39.5% |
| 2013 | 0.749 one-year-olds per square kilometre | +17.7% |
| 2014 | 0.8533 one-year-olds per square kilometre | +13.9% |
| 2015 | 0.81 one-year-olds per square kilometre | -5.1% |
| 2016 | 0.707 one-year-olds per square kilometre | -12.7% |
| 2017 | 0.57 one-year-olds per square kilometre | -19.4% |
| 2018 | 0.425 one-year-olds per square kilometre | -25.4% |
| 2019 | 0.474 one-year-olds per square kilometre | +11.5% |
| 2020 | 0.4473 one-year-olds per square kilometre | -5.6% |
| 2021 | 0.4017 one-year-olds per square kilometre | -10.2% |
| 2022 | 0.3093 one-year-olds per square kilometre | -23.0% |
| 2023 | 0.3315 one-year-olds per square kilometre | +7.2% |
San Marino compared with similar countries
- San Marino's 0.3315 one-year-olds per square kilometre is above the median for high income countries, which is 0.048 one-year-olds per square kilometre, 6.9× the median. (63 countries reporting)
- San Marino's 0.3315 one-year-olds per square kilometre is above the median for Europe & Central Asia, which is 0.0516 one-year-olds per square kilometre, 6.4× the median. (51 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not vaccinated against diphtheria in San Marino 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 |
|---|---|---|---|
| 1994 | +1184.0% | 0.0405 one-year-olds per square kilometre | 0.52 one-year-olds per square kilometre |
| 2000 | +103.6% | 0.0468 one-year-olds per square kilometre | 0.0953 one-year-olds per square kilometre |
| 2006 | +102.6% | 0.2033 one-year-olds per square kilometre | 0.412 one-year-olds per square kilometre |
| 1995 | -91.7% | 0.52 one-year-olds per square kilometre | 0.043 one-year-olds per square kilometre |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 0.0385 one-year-olds per square kilometre | 0.0362 one-year-olds per square kilometre | 0.0407 one-year-olds per square kilometre | 7 |
| 1990s | 0.0906 one-year-olds per square kilometre | 0.0395 one-year-olds per square kilometre | 0.52 one-year-olds per square kilometre | 10 |
| 2000s | 0.2989 one-year-olds per square kilometre | 0.0953 one-year-olds per square kilometre | 0.5383 one-year-olds per square kilometre | 10 |
| 2010s | 0.6227 one-year-olds per square kilometre | 0.425 one-year-olds per square kilometre | 0.8533 one-year-olds per square kilometre | 10 |
| 2020s | 0.3725 one-year-olds per square kilometre | 0.3093 one-year-olds per square kilometre | 0.4473 one-year-olds per square kilometre | 4 |
Countries ranked near San Marino
- 53 Somalia 0.3467 one-year-olds per square kilometre compare
- 54 East Timor 0.342 one-year-olds per square kilometre compare
- 55 Samoa 0.3376 one-year-olds per square kilometre compare
- 57 Ecuador 0.3313 one-year-olds per square kilometre compare
- 58 Cambodia 0.3271 one-year-olds per square kilometre compare
- 59 Sierra Leone 0.2936 one-year-olds per square kilometre compare
More health data for San Marino
- Heat deaths vs projected death rates, annual growth rate 0.3342 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,081 deaths per 1,000 people (2090)
- Number of infants who die before age 1 0 deaths (2100)
- Age population, age 09, female, interpolated 142 (2025)
- Population, male 16,773 (2025)
- Age population, age 08, male, interpolated 133 (2025)
- Age population, age 08, female, interpolated 127 (2025)
- Age population, age 07, male, interpolated 127 (2025)
- Age population, age 06, female, interpolated 125 (2025)
- Age population, age 14, female, interpolated 177 (2025)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against diphtheria in San Marino?
- Number of one-year-olds who are not vaccinated against diphtheria in San Marino was 0.3315 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 San Marino?
- The highest recorded value was 0.8533 one-year-olds per square kilometre in 2014.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in San Marino?
- The lowest recorded value was 0.0362 one-year-olds per square kilometre in 1987.
- How does San Marino rank for number of one-year-olds who are not vaccinated against diphtheria?
- San Marino ranks 56th out of 192 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in San Marino?
- Over the last ten years it is down 55.7%. The long-run trend across the full record is volatile.
- Where does this San Marino 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.