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

Cambodia
0.3271 one-year-olds per square kilometre
in 2023
Sierra Leone
0.2936 one-year-olds per square kilometre
in 2023
Cambodia rank
58th
Sierra Leone rank
59th

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

  • Cambodia
  • Sierra Leone
00.511.5198420032023

How they compare

Cambodia currently reports 0.3271 one-year-olds per square kilometre against 0.2936 one-year-olds per square kilometre in Sierra Leone, a difference of 0.0335 one-year-olds per square kilometre.

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

The two have swapped places 3 times across 25 shared years of data; in 1999 it was Sierra Leone ahead.

Cambodia ranks 58th and Sierra Leone ranks 59th of 192 countries.

Across the 4 decades both report, Cambodia averaged higher in 1 and Sierra Leone in 3.

Head to head by decade

Decade Cambodia Sierra Leone Difference Ahead
1990s 0.9006 one-year-olds per square kilometre 1.25 one-year-olds per square kilometre 0.349 one-year-olds per square kilometre Sierra Leone
2000s 0.454 one-year-olds per square kilometre 0.9561 one-year-olds per square kilometre 0.5021 one-year-olds per square kilometre Sierra Leone
2010s 0.2108 one-year-olds per square kilometre 0.335 one-year-olds per square kilometre 0.1242 one-year-olds per square kilometre Sierra Leone
2020s 0.3105 one-year-olds per square kilometre 0.2822 one-year-olds per square kilometre 0.0283 one-year-olds per square kilometre Cambodia

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, Cambodia or Sierra Leone?
Cambodia, at 0.3271 one-year-olds per square kilometre against 0.2936 one-year-olds per square kilometre in Sierra Leone as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between Cambodia and Sierra Leone?
0.0335 one-year-olds per square kilometre, with Cambodia ahead.
How many years of comparable data are there for Cambodia and Sierra Leone?
25 years are reported by both, from 1999 to 2023.
How do Cambodia and Sierra Leone rank globally for number of one-year-olds who are not vaccinated against diphtheria?
Cambodia ranks 58th 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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Cambodia 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/cambodia/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/cambodia/sierra-leone/">Cambodia 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.