Education is one of the most geographically unequal things in the world.
In some regions almost everyone can read; in others, a third of adults cannot.
The map of education closely tracks the map of poverty, and the gaps have proven stubborn.
TL;DR
- In 2024, adult illiteracy was almost 32% in sub-Saharan Africa and about 22% in South Asia.
- More than half of the world’s illiterate adults, some 441 million people, live in just 10 countries.
- Most developed countries have literacy rates around 99%.
The regional figures here come from UNESCO and Our World in Data.
The geography of literacy
| wdt_ID | wdt_created_by | wdt_created_at | wdt_last_edited_by | wdt_last_edited_at | Region | Adult illiteracy |
|---|---|---|---|---|---|---|
| 1 | emmanuel-ashemiriogwa | 10/08/2026 11:53 AM | emmanuel-ashemiriogwa | 10/08/2026 11:53 AM | Sub-Saharan Africa | ~32% |
| 2 | emmanuel-ashemiriogwa | 10/08/2026 11:53 AM | emmanuel-ashemiriogwa | 10/08/2026 11:53 AM | South Asia | ~22% |
| 3 | emmanuel-ashemiriogwa | 10/08/2026 11:53 AM | emmanuel-ashemiriogwa | 10/08/2026 11:53 AM | Europe / East Asia | ~1% (near universal) |
Between 2015 and 2024, sub-Saharan Africa’s literacy rate rose from 65 to 69%, yet the number of illiterate adults actually increased, from 196 million to 225 million, because population grew faster than literacy.
That is the region’s central challenge: progress in percentages can still mean more people left behind in absolute numbers.
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Why the gaps persist
Education geography is sticky because it compounds.
Regions that industrialized early built school systems early, and literate parents raise literate children.
Illiteracy is highly concentrated, with more than half the world’s illiterate adults in just 10 mostly populous countries.
Where poverty, weak schooling, and rapid population growth combine, literacy struggles to keep pace, which is why the same regions sit at the bottom decade after decade.
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ELI5
In rich regions like Europe and North America, almost everyone can read.
In sub-Saharan Africa, about a third of adults cannot, and in South Asia, about a fifth.
The places with the least education are also the poorest, and the two problems feed each other.
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