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

Updated July 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. At MYRIAD, we look at the statistics of human existence to understand the sheer scale of generational experience. When we examine child mortality under five in Sierra Leone, we are tracking the profound vulnerability of early life across more than two centuries. Every data point represents countless families navigating the fragile boundary between birth and a child's fifth birthday, charting a reality that shapes communities, households, and the collective memory of a nation.

The historical arc across these three centuries reveals a slow, persistent transformation. In the 1800s estimate, the toll was immense at 450 per 1,000 births, easing very gradually through the 1810s estimate, the 1820s estimate, the 1830s estimate, the 1840s estimate, the 1850s estimate, the 1860s estimate, the 1870s estimate, the 1880s estimate, and the 1890s estimate. By 1900 it was 430 per 1,000 births, continuing down through the 1910s estimate, the 1920s estimate, the 1930s estimate, the 1940s estimate, the 1950s, the 1960s, the 1970s, the 1980s, the 1990s, the 2000s, and the 2010s. In the 2020s, child mortality under five in Sierra Leone stands at 75 per 1,000 births, ranking #148 of 157 countries.

Looking forward, the projections outline a continuation of this trajectory into the future through the 2030s projection, the 2040s projection, the 2050s projection, the 2060s projection, the 2070s projection, the 2080s projection, the 2090s projection, and the 2100s projection. For anyone born in Sierra Leone across these eras, the statistical landscape dictates the very contours of family life and survival. Understanding these figures allows us to perceive the changing probabilities that accompany every generation. Where do YOU rank among everyone ever born?

🇸🇱 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? →