Which has higher human development index, Guinea or Sierra Leone?

Guinea, at 0.352 HDI against 0.348 HDI in Sierra Leone as of 2011.

How many years of comparable data are there for Guinea and Sierra Leone?

7 years are reported by both, from 2005 to 2011.

Where does this data come from?

http://hdr.undp.org/en/statistics/data/, published as Human development index (HDI). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Guinea vs Sierra Leone: Human development index

Guinea

0.352 HDI

in 2011

Sierra Leone

0.348 HDI

in 2011

Guinea rank

41st

Sierra Leone rank

43rd

Human development index over time

Guinea
Sierra Leone

How they compare

Guinea currently reports 0.352 HDI against 0.348 HDI in Sierra Leone, a difference of 0.004 HDI.

Across all 7 years both countries report, Guinea has been ahead every year.

Guinea ranks 41st and Sierra Leone ranks 43rd of 50 countries.

Guinea has averaged higher in every one of the 2 decades both report.

Head to head by decade

Decade	Guinea	Sierra Leone	Difference	Ahead
2000s	0.3402 HDI	0.3294 HDI	0.0108 HDI	Guinea
2010s	0.3505 HDI	0.347 HDI	0.0035 HDI	Guinea

Averages of every year both report within each decade.

Frequently asked questions

Which has higher human development index, Guinea or Sierra Leone?: Guinea, at 0.352 HDI against 0.348 HDI in Sierra Leone as of 2011.
What is the difference in human development index between Guinea and Sierra Leone?: 0.004 HDI, with Guinea ahead.
How many years of comparable data are there for Guinea and Sierra Leone?: 7 years are reported by both, from 2005 to 2011.
How do Guinea and Sierra Leone rank globally for human development index?: Guinea ranks 41st and Sierra Leone ranks 43rd of 50 countries.
Where does this data come from?: http://hdr.undp.org/en/statistics/data/, published as Human development index (HDI). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Guinea vs Sierra Leone: Human development index. Statizoid, drawing on http://hdr.undp.org/en/statistics/data/. Retrieved 24 September 2026, from https://reference.statizoid.com/compare/human-development-index-hdi/guinea/sierra-leone/

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About this data

Indicator: Human development index (HDI)
Unit: HDI
Source: http://hdr.undp.org/en/statistics/data/
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 50 places, 459 data points, 1980–2011
Last refreshed: 18 September 2026

The Human Development Index (HDI) is a summary measure of human development. It measures the average achievements in a country in three basic dimensions of human development: a long and healthy life, access to knowledge and a decent standard of living. The HDI is the geometric mean of normalized indices measuring achievements in each dimension. The HDI is the geometric mean of the three dimension indices and embodies imperfect substitutability across all HDI dimensions. It thus addresses one of the most serious criticisms of the linear aggregation formula, which allowed for perfect substitution across dimensions. Some substitutability is inherent in the definition of any index that increases with the values of its components. Data sources: Life expectancy at birth: UNDESA; Mean years of schooling: Barro and Lee; Expected years of schooling: UNESCO Institute for Statistics; Gross national income (GNI) per capita: World Bank.