Samoa vs San Marino: Number of one-year-olds who are not vaccinated against diphtheria

Samoa
0.3376 one-year-olds per square kilometre
in 2023
San Marino
0.3315 one-year-olds per square kilometre
in 2023
Samoa rank
55th
San Marino rank
56th

Number of one-year-olds who are not vaccinated against diphtheria over time

  • Samoa
  • San Marino
00.511.5198020012023

How they compare

Samoa currently reports 0.3376 one-year-olds per square kilometre against 0.3315 one-year-olds per square kilometre in San Marino, a difference of 0.0061 one-year-olds per square kilometre.

The two have swapped places 12 times across 41 shared years of data; in 1983 it was Samoa ahead.

Samoa ranks 55th and San Marino ranks 56th of 192 countries.

Across the 5 decades both report, Samoa averaged higher in 3 and San Marino in 2.

Head to head by decade

Decade Samoa San Marino Difference Ahead
1980s 0.2222 one-year-olds per square kilometre 0.0385 one-year-olds per square kilometre 0.1837 one-year-olds per square kilometre Samoa
1990s 0.1375 one-year-olds per square kilometre 0.0906 one-year-olds per square kilometre 0.0469 one-year-olds per square kilometre Samoa
2000s 0.5442 one-year-olds per square kilometre 0.2989 one-year-olds per square kilometre 0.2453 one-year-olds per square kilometre Samoa
2010s 0.547 one-year-olds per square kilometre 0.6227 one-year-olds per square kilometre 0.0757 one-year-olds per square kilometre San Marino
2020s 0.3445 one-year-olds per square kilometre 0.3725 one-year-olds per square kilometre 0.0279 one-year-olds per square kilometre San Marino

Averages of every year both report within each decade.

Frequently asked questions

Which has higher number of one-year-olds who are not vaccinated against diphtheria, Samoa or San Marino?
Samoa, at 0.3376 one-year-olds per square kilometre against 0.3315 one-year-olds per square kilometre in San Marino as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between Samoa and San Marino?
0.0061 one-year-olds per square kilometre, with Samoa ahead.
How many years of comparable data are there for Samoa and San Marino?
41 years are reported by both, from 1983 to 2023.
How do Samoa and San Marino rank globally for number of one-year-olds who are not vaccinated against diphtheria?
Samoa ranks 55th and San Marino ranks 56th of 192 countries.
Where does this data come from?
Statizoid (derived), published as Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Samoa vs San Marino: Number of one-year-olds who are not vaccinated against diphtheria. Statizoid, drawing on Statizoid (derived). Retrieved 17 September 2026, from https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-3/samoa/san-marino/

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<a href="https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-3/samoa/san-marino/">Samoa vs San Marino: Number of one-year-olds who are not vaccinated against diphtheria</a> — Statizoid

About this data

Indicator
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per square kilometre
Unit
one-year-olds per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
192 places, 7,710 data points, 1980–2023
Last refreshed

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.