Measles - number of reported cases, gaps filled in Sierra Leone

Sierra Leone: Measles - number of reported cases, gaps filled was 207 in 2025. ◆ Volatile

Latest (2025)
207
Change on year
up 60.5%
World rank
69th
of 210 countries
All-time high
4,327
in 1983
All-time low
0
in 2007
Years of data
52
1974–2025

Measles - number of reported cases, gaps filled in Sierra Leone, 1974–2025

01.0k2.0k3.0k4.0k197419992025

Source: Statizoid (derived).

Analysis

In 2025, measles - number of reported cases, gaps filled in Sierra Leone stood at 207.

Compared with earlier readings it is up 60.5% on the previous year and down 65.9% over ten years.

Over the whole period, measles - number of reported cases, gaps filled in Sierra Leone peaked at 4,327 in 1983 and was at its lowest, 0, in 2007.

Sierra Leone ranks 69th of 210 countries on this measure, in the middle of the range.

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

Measles - number of reported cases, gaps filled in Sierra Leone, year by year

Annual values for Measles - number of reported cases, gaps filled in Sierra Leone, 1974 to 2025.
Year Value Change
1974 1,328
1975 901 -32.2%
1976 474 -47.4%
1977 534 +12.7%
1978 151 -71.7%
1979 4,102 +2616.6%
1980 3,625 -11.6%
1981 3,408 -6.0%
1982 4,102 +20.4%
1983 4,327 +5.5%
1984 4,016 -7.2%
1985 3,351 -16.6%
1986 164 -95.1%
1987 1,000 +509.8%
1988 207 -79.3%
1989 625 +201.9%
1990 830 +32.8%
1991 284 -65.8%
1992 914 +221.8%
1993 2,288 +150.3%
1994 114 -95.0%
1995 344 +201.8%
1996 352.5 +2.5%
1997 361 +2.4%
1998 1,432 +296.8%
1999 2,504 +74.8%
2000 3,575 +42.8%
2001 649 -81.8%
2002 568 -12.5%
2003 586 +3.2%
2004 7 -98.8%
2005 29 +314.3%
2006 33 +13.8%
2007 0 -100.0%
2008 44
2009 31 -29.5%
2010 1,089 +3412.9%
2011 1,865 +71.3%
2012 678 -63.6%
2013 15 -97.8%
2014 1,006 +6606.7%
2015 607 -39.7%
2016 920 +51.6%
2017 1,873 +103.6%
2018 344 -81.6%
2019 40 -88.4%
2020 17 -57.5%
2021 170 +900.0%
2022 731 +330.0%
2023 645 -11.8%
2024 129 -80.0%
2025 207 +60.5%

Averages by decade

DecadeAverage LowestHighest Years
1970s 1,248 151 4,102 6
1980s 2,482 164 4,327 10
1990s 942.35 114 2,504 10
2000s 552.2 0 3,575 10
2010s 843.7 15 1,873 10
2020s 316.5 17 731 6

Countries ranked near Sierra Leone

  1. 66 United Arab Emirates 234 compare
  2. 66 Germany 234 compare
  3. 68 Türkiye 228 compare
  4. 69 Libya 207 compare
  5. 71 Serbia 204 compare
  6. 72 Republic of Moldova 193 compare

See the full ranking of 222 places →

More health data for Sierra Leone

All data for Sierra Leone →

Frequently asked questions

What is measles - number of reported cases, gaps filled in Sierra Leone?
Measles - number of reported cases, gaps filled in Sierra Leone was 207 in 2025, according to Statizoid (derived).
What is the highest measles - number of reported cases, gaps filled recorded in Sierra Leone?
The highest recorded value was 4,327 in 1983.
What is the lowest measles - number of reported cases, gaps filled recorded in Sierra Leone?
The lowest recorded value was 0 in 2007.
How does Sierra Leone rank for measles - number of reported cases, gaps filled?
Sierra Leone ranks 69th out of 210 countries with data for 2025.
Is measles - number of reported cases, gaps filled rising or falling in Sierra Leone?
Over the last ten years it is down 65.9%. The long-run trend across the full record is volatile.
Where does this Sierra Leone data come from?
The figures come from Statizoid (derived), published as part of Measles - number of reported cases, gaps filled. Statizoid updates them automatically from the source API.

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Measles - number of reported cases, gaps filled in Sierra Leone. Statizoid, drawing on Statizoid (derived). Retrieved 31 August 2026, from https://health.statizoid.com/stat/measles-number-of-reported-cases-gaps-filled/sierra-leone/

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<a href="https://health.statizoid.com/stat/measles-number-of-reported-cases-gaps-filled/sierra-leone/">Measles - number of reported cases, gaps filled in Sierra Leone</a> — Statizoid

How this figure is calculated

Measles - number of reported cases with 449 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.

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
Measles - number of reported cases, gaps filled
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
222 places, 10,389 data points, 1974–2025
Last refreshed

Measles - number of reported cases with 449 missing years estimated by linear interpolation between the nearest real observations. Only gaps of 4 years or fewer are filled, and never beyond the first or last actual measurement — these are filled holes, not forecasts.