Statizoid

Diphtheria - number of reported cases, per square kilometre in Sierra Leone

Sierra Leone: Diphtheria - number of reported cases, per square kilometre was 0 units per square kilometre in 2021. ◆ Volatile

Latest (2021)
0 units per square kilometre
World rank
57th
of 204 countries
All-time high
0.0111 units per square kilometre
in 1984
All-time low
0 units per square kilometre
in 1980
Years of data
13
1980–2021

Diphtheria - number of reported cases, per square kilometre in Sierra Leone, 1980–2021

00.0030.0050.0070.011980200020211980: 0 units per square kilometre1981: 0 units per square kilometre1984: 0.011 units per square kilometre1985: 0 units per square kilometre1986: 0 units per square kilometre1987: 0 units per square kilometre1997: 0 units per square kilometre2000: 0 units per square kilometre2003: 0 units per square kilometre2005: 0 units per square kilometre2006: 0 units per square kilometre2007: 0 units per square kilometre2021: 0 units per square kilometre

Source: Statizoid (derived). Measured in units per square kilometre.

Analysis

Sierra Leone recorded 0 units per square kilometre for diphtheria - number of reported cases, per square kilometre in 2021. That is the lowest value across all 13 years on record.

Over the whole period, diphtheria - number of reported cases, per square kilometre in Sierra Leone peaked at 0.0111 units per square kilometre in 1984 and was at its lowest, 0 units per square kilometre, in 1980.

That places Sierra Leone 57th out of 204 countries with data for 2021, putting it in the middle of the range.

The series is highly variable year to year, so single readings are best treated with caution.

Diphtheria - number of reported cases, per square kilometre in Sierra Leone, year by year

Year units per square kilometre Change
1980 0 units per square kilometre —
1981 0 units per square kilometre —
1984 0.0111 units per square kilometre —
1985 0 units per square kilometre -100.0%
1986 0 units per square kilometre —
1987 0.0001 units per square kilometre —
1997 0 units per square kilometre -100.0%
2000 0 units per square kilometre —
2003 0 units per square kilometre —
2005 0 units per square kilometre —
2006 0 units per square kilometre —
2007 0 units per square kilometre —
2021 0 units per square kilometre —

Averages by decade

DecadeAverage LowestHighest Years
1980s 0.0019 units per square kilometre 0 units per square kilometre 0.0111 units per square kilometre 6
1990s 0 units per square kilometre 0 units per square kilometre 0 units per square kilometre 1
2000s 0 units per square kilometre 0 units per square kilometre 0 units per square kilometre 5
2020s 0 units per square kilometre 0 units per square kilometre 0 units per square kilometre 1

Countries ranked near Sierra Leone

  1. 54 Brazil 0 units per square kilometre compare
  2. 55 Canada 0 units per square kilometre compare
  3. 56 United States 0 units per square kilometre compare
  4. 57 Aruba 0 units per square kilometre
  5. 57 Albania 0 units per square kilometre compare
  6. 57 Andorra 0 units per square kilometre
  7. 57 United Arab Emirates 0 units per square kilometre compare
  8. 57 Argentina 0 units per square kilometre compare
  9. 57 Armenia 0 units per square kilometre compare
  10. 57 American Samoa 0 units per square kilometre
  11. 57 Antigua and Barbuda 0 units per square kilometre
  12. 57 Azerbaijan 0 units per square kilometre compare
  13. 57 Burundi 0 units per square kilometre compare
  14. 57 Benin 0 units per square kilometre compare
  15. 57 Burkina Faso 0 units per square kilometre compare
  16. 57 Bulgaria 0 units per square kilometre compare
  17. 57 Bahrain 0 units per square kilometre compare
  18. 57 Bahamas 0 units per square kilometre compare
  19. 57 Bosnia and Herzegovina 0 units per square kilometre
  20. 57 Belarus 0 units per square kilometre compare
  21. 57 Belize 0 units per square kilometre compare
  22. 57 Bermuda 0 units per square kilometre compare
  23. 57 Bolivia 0 units per square kilometre compare
  24. 57 Barbados 0 units per square kilometre compare
  25. 57 Brunei 0 units per square kilometre compare
  26. 57 Bhutan 0 units per square kilometre compare
  27. 57 Botswana 0 units per square kilometre compare
  28. 57 Chile 0 units per square kilometre compare
  29. 57 China 0 units per square kilometre compare
  30. 57 Cameroon 0 units per square kilometre compare
  31. 57 Congo 0 units per square kilometre compare
  32. 57 Colombia 0 units per square kilometre compare
  33. 57 Comoros 0 units per square kilometre
  34. 57 Cape Verde 0 units per square kilometre compare
  35. 57 Costa Rica 0 units per square kilometre compare
  36. 57 Cuba 0 units per square kilometre compare
  37. 57 Cayman Islands 0 units per square kilometre
  38. 57 Cyprus 0 units per square kilometre compare
  39. 57 Djibouti 0 units per square kilometre compare
  40. 57 Dominica 0 units per square kilometre compare
  41. 57 Denmark 0 units per square kilometre compare
  42. 57 Ecuador 0 units per square kilometre compare
  43. 57 Egypt 0 units per square kilometre compare
  44. 57 Eritrea 0 units per square kilometre compare
  45. 57 Estonia 0 units per square kilometre compare
  46. 57 Finland 0 units per square kilometre compare
  47. 57 Fiji 0 units per square kilometre
  48. 57 Micronesia (country) 0 units per square kilometre
  49. 57 Georgia 0 units per square kilometre compare
  50. 57 Ghana 0 units per square kilometre compare
  51. 57 Gambia 0 units per square kilometre compare
  52. 57 Guinea-Bissau 0 units per square kilometre compare
  53. 57 Equatorial Guinea 0 units per square kilometre compare
  54. 57 Greece 0 units per square kilometre compare
  55. 57 Grenada 0 units per square kilometre compare
  56. 57 Guatemala 0 units per square kilometre compare
  57. 57 Guam 0 units per square kilometre
  58. 57 Guyana 0 units per square kilometre compare
  59. 57 Hong Kong 0 units per square kilometre compare
  60. 57 Honduras 0 units per square kilometre compare
  61. 57 Croatia 0 units per square kilometre
  62. 57 Hungary 0 units per square kilometre compare
  63. 57 Ireland 0 units per square kilometre compare
  64. 57 Iran 0 units per square kilometre compare
  65. 57 Iceland 0 units per square kilometre
  66. 57 Israel 0 units per square kilometre compare
  67. 57 Jamaica 0 units per square kilometre compare
  68. 57 Jordan 0 units per square kilometre compare
  69. 57 Japan 0 units per square kilometre compare
  70. 57 Kazakhstan 0 units per square kilometre compare
  71. 57 Kenya 0 units per square kilometre compare
  72. 57 Kyrgyzstan 0 units per square kilometre compare
  73. 57 Cambodia 0 units per square kilometre compare
  74. 57 Kiribati 0 units per square kilometre compare
  75. 57 Saint Kitts and Nevis 0 units per square kilometre compare
  76. 57 South Korea 0 units per square kilometre compare
  77. 57 Kuwait 0 units per square kilometre compare
  78. 57 Lebanon 0 units per square kilometre compare
  79. 57 Liberia 0 units per square kilometre
  80. 57 Libya 0 units per square kilometre compare
  81. 57 Saint Lucia 0 units per square kilometre compare
  82. 57 Sri Lanka 0 units per square kilometre compare
  83. 57 Lesotho 0 units per square kilometre compare
  84. 57 Lithuania 0 units per square kilometre compare
  85. 57 Macao 0 units per square kilometre compare
  86. 57 Morocco 0 units per square kilometre compare
  87. 57 Monaco 0 units per square kilometre compare
  88. 57 Moldova 0 units per square kilometre compare
  89. 57 Maldives 0 units per square kilometre
  90. 57 Mexico 0 units per square kilometre compare
  91. 57 Marshall Islands 0 units per square kilometre
  92. 57 North Macedonia 0 units per square kilometre
  93. 57 Mali 0 units per square kilometre compare
  94. 57 Malta 0 units per square kilometre
  95. 57 Montenegro 0 units per square kilometre
  96. 57 Mongolia 0 units per square kilometre compare
  97. 57 Northern Mariana Islands 0 units per square kilometre
  98. 57 Mozambique 0 units per square kilometre compare
  99. 57 Mauritius 0 units per square kilometre compare
  100. 57 Malawi 0 units per square kilometre compare
  101. 57 Namibia 0 units per square kilometre compare
  102. 57 New Caledonia 0 units per square kilometre compare
  103. 57 Nicaragua 0 units per square kilometre compare
  104. 57 Nauru 0 units per square kilometre
  105. 57 Oman 0 units per square kilometre compare
  106. 57 Panama 0 units per square kilometre compare
  107. 57 Peru 0 units per square kilometre compare
  108. 57 Palau 0 units per square kilometre
  109. 57 Papua New Guinea 0 units per square kilometre compare
  110. 57 North Korea 0 units per square kilometre compare
  111. 57 Portugal 0 units per square kilometre compare
  112. 57 Paraguay 0 units per square kilometre compare
  113. 57 Palestine 0 units per square kilometre
  114. 57 French Polynesia 0 units per square kilometre compare
  115. 57 Qatar 0 units per square kilometre compare
  116. 57 Romania 0 units per square kilometre compare
  117. 57 Russia 0 units per square kilometre compare
  118. 57 Rwanda 0 units per square kilometre compare
  119. 57 Senegal 0 units per square kilometre compare
  120. 57 Singapore 0 units per square kilometre compare
  121. 57 Solomon Islands 0 units per square kilometre
  122. 57 El Salvador 0 units per square kilometre compare
  123. 57 San Marino 0 units per square kilometre
  124. 57 Serbia 0 units per square kilometre
  125. 57 Sao Tome and Principe 0 units per square kilometre
  126. 57 Slovenia 0 units per square kilometre
  127. 57 Eswatini 0 units per square kilometre compare
  128. 57 Seychelles 0 units per square kilometre
  129. 57 Syria 0 units per square kilometre compare
  130. 57 Turks and Caicos Islands 0 units per square kilometre
  131. 57 Togo 0 units per square kilometre compare
  132. 57 Tajikistan 0 units per square kilometre compare
  133. 57 Turkmenistan 0 units per square kilometre compare
  134. 57 East Timor 0 units per square kilometre compare
  135. 57 Tonga 0 units per square kilometre
  136. 57 Trinidad and Tobago 0 units per square kilometre compare
  137. 57 Tunisia 0 units per square kilometre compare
  138. 57 Turkey 0 units per square kilometre compare
  139. 57 Tuvalu 0 units per square kilometre compare
  140. 57 Tanzania 0 units per square kilometre compare
  141. 57 Uganda 0 units per square kilometre compare
  142. 57 Ukraine 0 units per square kilometre compare
  143. 57 Uruguay 0 units per square kilometre compare
  144. 57 Uzbekistan 0 units per square kilometre compare
  145. 57 Saint Vincent and the Grenadines 0 units per square kilometre compare
  146. 57 British Virgin Islands 0 units per square kilometre
  147. 57 Vanuatu 0 units per square kilometre compare
  148. 57 Samoa 0 units per square kilometre compare
  149. 57 Zambia 0 units per square kilometre compare
  150. 57 Zimbabwe 0 units per square kilometre compare

See the full ranking of 205 places →

More health data for Sierra Leone

All data for Sierra Leone →

Frequently asked questions

What is diphtheria - number of reported cases, per square kilometre in Sierra Leone?
Diphtheria - number of reported cases, per square kilometre in Sierra Leone was 0 units per square kilometre in 2021, according to Statizoid (derived).
What is the highest diphtheria - number of reported cases, per square kilometre recorded in Sierra Leone?
The highest recorded value was 0.0111 units per square kilometre in 1984.
What is the lowest diphtheria - number of reported cases, per square kilometre recorded in Sierra Leone?
The lowest recorded value was 0 units per square kilometre in 1980.
How does Sierra Leone rank for diphtheria - number of reported cases, per square kilometre?
Sierra Leone ranks 57th out of 204 countries with data for 2021.
Where does this Sierra Leone data come from?
The figures come from Statizoid (derived), published as part of Diphtheria - number of reported cases, per square kilometre. Statizoid updates them automatically from the source API.

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Diphtheria - number of reported cases, per square kilometre in Sierra Leone. Statizoid, drawing on Statizoid (derived). Retrieved 01 September 2026, from https://health.statizoid.com/stat/diphtheria-number-of-reported-cases-per-square-kilometre/sierra-leone/

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<a href="https://health.statizoid.com/stat/diphtheria-number-of-reported-cases-per-square-kilometre/sierra-leone/">Diphtheria - number of reported cases, per square kilometre in Sierra Leone</a> — Statizoid

How this figure is calculated

Diphtheria - number of reported cases 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.

Diphtheria - number of reported cases ÷ Land area (sq. km)

Computed from

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

Indicator
Diphtheria - number of reported cases, per square kilometre
Unit
units per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
205 places, 7,917 data points, 1974–2023
Last refreshed

Diphtheria - number of reported cases 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.