Statizoid

Sovereign state in Sierra Leone

Sierra Leone: Sovereign state was 1 in 2025. ◆ Volatile

Latest (2025)
1
Change on year
unchanged
World rank
1st
of 194 countries
All-time high
1
in 1961
All-time low
0
in 1816
Years of data
210
1816–2025

Sovereign state in Sierra Leone, 1816–2025

00.20.40.60.81181619202025

Source: Gleditsch and Ward (2007) – with minor processing by Our World in Data.

Analysis

The most recent figure for sovereign state in Sierra Leone is 1, measured in 2025. That is the highest value across all 210 years on record.

The figure is unchanged over ten years.

Over the whole period, sovereign state in Sierra Leone peaked at 1 in 1961 and was at its lowest, 0, in 1816.

That places Sierra Leone 1st out of 194 countries with data for 2025, putting it in the top 10%.

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

Averages by decade

DecadeAverage LowestHighest Years
1810s 0 0 0 4
1820s 0 0 0 10
1830s 0 0 0 10
1840s 0 0 0 10
1850s 0 0 0 10
1860s 0 0 0 10
1870s 0 0 0 10
1880s 0 0 0 10
1890s 0 0 0 10
1900s 0 0 0 10
1910s 0 0 0 10
1920s 0 0 0 10
1930s 0 0 0 10
1940s 0 0 0 10
1950s 0 0 0 10
1960s 0.9 0 1 10
1970s 1 1 1 10
1980s 1 1 1 10
1990s 1 1 1 10
2000s 1 1 1 10
2010s 1 1 1 10
2020s 1 1 1 6

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See the full ranking of 194 places →

More social development data for Sierra Leone

All data for Sierra Leone →

Frequently asked questions

What is sovereign state in Sierra Leone?
Sovereign state in Sierra Leone was 1 in 2025, according to Gleditsch and Ward (2007) – with minor processing by Our World in Data.
What is the highest sovereign state recorded in Sierra Leone?
The highest recorded value was 1 in 1961.
What is the lowest sovereign state recorded in Sierra Leone?
The lowest recorded value was 0 in 1816.
How does Sierra Leone rank for sovereign state?
Sierra Leone ranks 1st out of 194 countries with data for 2025.
Is sovereign state rising or falling in Sierra Leone?
Over the last ten years it is unchanged. The long-run trend across the full record is volatile.
Where does this Sierra Leone data come from?
The figures come from Gleditsch and Ward (2007) – with minor processing by Our World in Data, published as part of Sovereign state. Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 210 observations, free to reuse under CC BY 4.0 (Our World in Data).

About this data

Indicator
Sovereign state
Source
Gleditsch and Ward (2007) – with minor processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
194 places, 40,740 data points, 1816–2025
Last refreshed

The country is identified as a sovereign state by Gleditsch and Ward dataset.