Liberia vs Sierra Leone: Number of one-year-olds who are not vaccinated against diphtheria

Liberia
0.276 one-year-olds per square kilometre
in 2023
Sierra Leone
0.2936 one-year-olds per square kilometre
in 2023
Liberia rank
62nd
Sierra Leone rank
59th

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

  • Liberia
  • Sierra Leone
00.511.5199920112023

How they compare

Sierra Leone currently reports 0.2936 one-year-olds per square kilometre against 0.276 one-year-olds per square kilometre in Liberia, a difference of 0.0176 one-year-olds per square kilometre.

That makes Sierra Leone's figure about 1.1 times Liberia's.

The two have swapped places 6 times across 25 shared years of data; in 1999 it was Sierra Leone ahead.

Liberia ranks 62nd and Sierra Leone ranks 59th of 192 countries.

Across the 4 decades both report, Liberia averaged higher in 2 and Sierra Leone in 2.

Head to head by decade

Decade Liberia Sierra Leone Difference Ahead
1990s 0.5027 one-year-olds per square kilometre 1.25 one-year-olds per square kilometre 0.7469 one-year-olds per square kilometre Sierra Leone
2000s 0.5516 one-year-olds per square kilometre 0.9561 one-year-olds per square kilometre 0.4045 one-year-olds per square kilometre Sierra Leone
2010s 0.3965 one-year-olds per square kilometre 0.335 one-year-olds per square kilometre 0.0615 one-year-olds per square kilometre Liberia
2020s 0.4186 one-year-olds per square kilometre 0.2822 one-year-olds per square kilometre 0.1363 one-year-olds per square kilometre Liberia

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, Liberia or Sierra Leone?
Sierra Leone, at 0.2936 one-year-olds per square kilometre against 0.276 one-year-olds per square kilometre in Liberia as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between Liberia and Sierra Leone?
0.0176 one-year-olds per square kilometre, with Sierra Leone ahead.
How many years of comparable data are there for Liberia and Sierra Leone?
25 years are reported by both, from 1999 to 2023.
How do Liberia and Sierra Leone rank globally for number of one-year-olds who are not vaccinated against diphtheria?
Liberia ranks 62nd and Sierra Leone ranks 59th 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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Liberia vs Sierra Leone: Number of one-year-olds who are not vaccinated against diphtheria. Statizoid, drawing on Statizoid (derived). Retrieved 18 September 2026, from https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-3/liberia/sierra-leone/

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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/liberia/sierra-leone/">Liberia vs Sierra Leone: 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.