Illiterate population, 25-64 years, both sexes in Nigeria

Nigeria: Illiterate population, 25-64 years, both sexes was 28.54 million number in 2018. ▲ Rising

Latest (2018)
28.54 million number
World rank
3rd
of 83 countries
All-time high
28.54 million number
in 2018
All-time low
15.54 million number
in 2006
Years of data
5
1991–2018

Illiterate population, 25-64 years, both sexes in Nigeria, 1991–2018

010.0M20.0M30.0M1991200420181991: 16.4M number2003: 21.7M number2006: 15.5M number2008: 26.6M number2018: 28.5M number

Source: UNESCO Institute for Statistics. Measured in number.

Analysis

The most recent figure for illiterate population, 25-64 years, both sexes in Nigeria is 28.54 million number, measured in 2018. That is the highest value across all 5 years on record.

Compared with earlier readings it is up 7.4% over ten years.

Over the whole period, illiterate population, 25-64 years, both sexes in Nigeria peaked at 28.54 million number in 2018 and was at its lowest, 15.54 million number, in 2006.

Nigeria ranks 3rd of 83 countries on this measure, in the top 10%.

Illiterate population, 25-64 years, both sexes in Nigeria, year by year

Annual values for Illiterate population, 25-64 years, both sexes (number) in Nigeria, 1991 to 2018.
Year number Change
1991 16.41 million number —
2003 21.67 million number +32.0%
2006 15.54 million number -28.3%
2008 26.58 million number +71.1%
2018 28.54 million number +7.4%

Nigeria compared with similar countries

  • Nigeria's 28.54 million number is above the median for lower middle income countries, which is 1.31 million number, 21.8× the median. (26 countries reporting)
  • Nigeria's 28.54 million number is above the median for Sub-Saharan Africa, which is 2.58 million number, 11.1× the median. (23 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1990s 16.41 million number 16.41 million number 16.41 million number 1
2000s 21.26 million number 15.54 million number 26.58 million number 3
2010s 28.54 million number 28.54 million number 28.54 million number 1

Countries ranked near Nigeria

  1. 1 India 186.67 million number compare
  2. 2 Pakistan 39.83 million number compare
  3. 4 Bangladesh 23.23 million number compare
  4. 5 Egypt 13.77 million number compare
  5. 6 China 13.21 million number compare

See the full ranking of 122 places →

More reference data data for Nigeria

All data for Nigeria →

Frequently asked questions

What is illiterate population, 25-64 years, both sexes in Nigeria?
Illiterate population, 25-64 years, both sexes in Nigeria was 28.54 million number in 2018, according to UNESCO Institute for Statistics.
What is the highest illiterate population, 25-64 years, both sexes recorded in Nigeria?
The highest recorded value was 28.54 million number in 2018.
What is the lowest illiterate population, 25-64 years, both sexes recorded in Nigeria?
The lowest recorded value was 15.54 million number in 2006.
How does Nigeria rank for illiterate population, 25-64 years, both sexes?
Nigeria ranks 3rd out of 83 countries with data for 2018.
Is illiterate population, 25-64 years, both sexes rising or falling in Nigeria?
Over the last ten years it is up 7.4%. The long-run trend across the full record is rising.
Where does this Nigeria data come from?
The figures come from UNESCO Institute for Statistics, published as part of Illiterate population, 25-64 years, both sexes (number). Statizoid updates them automatically from the source API.

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Illiterate population, 25-64 years, both sexes in Nigeria. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 29 September 2026, from https://reference.statizoid.com/stat/illiterate-population-25-64-years-both-sexes-number/nigeria/

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About this data

Indicator
Illiterate population, 25-64 years, both sexes (number)
Unit
number
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
122 places, 2,239 data points, 1970–2019
Last refreshed

Total number of adults from age 25 to age 64 who cannot both read and write with understanding a short simple statement on their everyday life.