Chad vs Sierra Leone: Reported cases of measles, per square kilometre

Chad
0.0094 Cases per square kilometre
in 2023
Sierra Leone
0.0089 Cases per square kilometre
in 2023
Chad rank
30th
Sierra Leone rank
31st

Reported cases of measles, per square kilometre over time

  • Chad
  • Sierra Leone
00.020.040.06197419982023

How they compare

Chad currently reports 0.0094 Cases per square kilometre against 0.0089 Cases per square kilometre in Sierra Leone, a difference of 0.0005 Cases per square kilometre.

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

The two have swapped places 19 times across 45 shared years of data; in 1974 it was Sierra Leone ahead.

Chad ranks 30th and Sierra Leone ranks 31st of 205 countries.

Across the 6 decades both report, Chad averaged higher in 1 and Sierra Leone in 5.

Head to head by decade

Decade Chad Sierra Leone Difference Ahead
1970s 0.0058 Cases per square kilometre 0.0183 Cases per square kilometre 0.0124 Cases per square kilometre Sierra Leone
1980s 0.0034 Cases per square kilometre 0.0326 Cases per square kilometre 0.0293 Cases per square kilometre Sierra Leone
1990s 0.0125 Cases per square kilometre 0.0102 Cases per square kilometre 0.0024 Cases per square kilometre Chad
2000s 0.0051 Cases per square kilometre 0.0077 Cases per square kilometre 0.0026 Cases per square kilometre Sierra Leone
2010s 0.0011 Cases per square kilometre 0.0117 Cases per square kilometre 0.0105 Cases per square kilometre Sierra Leone
2020s 0.0037 Cases per square kilometre 0.0054 Cases per square kilometre 0.0017 Cases per square kilometre Sierra Leone

Averages of every year both report within each decade.

Frequently asked questions

Which has higher reported cases of measles, per square kilometre, Chad or Sierra Leone?
Chad, at 0.0094 Cases per square kilometre against 0.0089 Cases per square kilometre in Sierra Leone as of 2023.
What is the difference in reported cases of measles, per square kilometre between Chad and Sierra Leone?
0.0005 Cases per square kilometre, with Chad ahead.
How many years of comparable data are there for Chad and Sierra Leone?
45 years are reported by both, from 1974 to 2023.
How do Chad and Sierra Leone rank globally for reported cases of measles, per square kilometre?
Chad ranks 30th and Sierra Leone ranks 31st of 205 countries.
Where does this data come from?
Statizoid (derived), published as Reported cases of measles, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Chad vs Sierra Leone: Reported cases of measles, per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 22 September 2026, from https://health.statizoid.com/compare/reported-cases-of-measles-per-square-kilometre/chad/sierra-leone/

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About this data

Indicator
Reported cases of measles, per square kilometre
Unit
Cases per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
205 places, 8,611 data points, 1974–2023
Last refreshed

Reported cases of measles 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.