Child Mortality (under 5) in Sierra Leone: 1800 to Today (and Tomorrow)

Updated October 2026 · ⬇ download this dataset (CSV) · methodology

In the 2020s, child mortality (under 5) in Sierra Leone stands at 75 per 1,000 births — ranking #148 of 157 countries. In 1900 it was 430 per 1,000 births. (Source: UN IGME / World Bank / Gapminder, compiled by MYRIAD)

Data journalism is rarely just about numbers; it is about the quiet weight of human lives measured in fractions of a thousand. When we examine child mortality under five in Sierra Leone, we are tracking the profound vulnerability of early life. Every data point represents countless families navigating the fragile boundary between birth and a child's fifth birthday. These figures are not mere statistics but a record of the collective memory of a nation, charting a reality that shapes the very contours of households and communities.

The historical arc reveals a slow, persistent transformation over more than two centuries. In the 1800s estimate, the toll was immense at 450 per 1,000 births. This burden eased gradually across the nineteenth century, and by 1900 it was 430 per 1,000 births. Through the twentieth century, the trajectory continued downward, shifting the probabilities of survival for each passing generation. By the 2020s, child mortality (under 5) in Sierra Leone stands at 75 per 1,000 births.

Despite this progress, the statistical landscape remains stark compared to global trends, with the country ranking #148 of 157 countries. For a child born into this time and place, the likelihood of survival has improved dramatically, yet the risk remains significant. Looking forward, projections suggest this decline will persist through the 2100s projection, promising a different lived experience for those yet to be born. You can now explore the data to see where you rank among everyone ever born.

Discover how your own history compares to these generational shifts on MYRIAD.

🇸🇱 Of every 1,000 children born, how many died before their fifth birthday. For Sierra Leone, the story across three centuries is below — every value is a statistical fact about the lives actually lived there.

Decade by decade

DecadeChild Mortality (under 5) (per 1,000 births)
1800s estimate450
1810s estimate448
1820s estimate446
1830s estimate444
1840s estimate442
1850s estimate440
1860s estimate438
1870s estimate436
1880s estimate434
1890s estimate432
1900s estimate430
1910s estimate408
1920s estimate386
1930s estimate364
1940s estimate342
1950s320
1960s273.33
1970s226.67
1980s180
1990s165
2000s150
2010s112.5
2020s75
2030s projection60
2040s projection48
2050s projection38.4
2060s projection30.72
2070s projection24.58
2080s projection19.66
2090s projection15.73
2100s projection12.58

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Questions people ask

What is the Child Mortality (under 5) in Sierra Leone today?

75 per 1,000 births in the 2020s (UN IGME / World Bank / Gapminder).

How much did Child Mortality (under 5) in Sierra Leone change since 1950?

From 320 to 75 per 1,000 births — a change of about -77%.

Where does Sierra Leone rank worldwide?

#148 of 157 countries covered by MYRIAD in the 2020s.

Where does YOUR life rank? →