How many countries have managed to achieve nearly 100% adult literacy?
The latest global figures reveal a striking contrast. While several nations report near-perfect literacy rates, others still have fewer than half of their adult population able to read and write.
According to UNESCO data published by the World Bank, North Korea, Tuvalu, and Uzbekistan share the highest reported adult literacy rate of 100%. Russia follows closely at 99.93%, while San Marino records 99.91%.
However, there's an important detail behind these figures. North Korea's latest observation dates back to 2008, whereas Tuvalu and Uzbekistan reported their numbers in 2022. Their rates may be identical, but they don't represent the same point in time.
This analysis examines the latest available adult literacy rates across 163 countries, revealing where basic literacy is nearly universal and where substantial gaps remain.
Source: UNESCO Institute for Statistics (UIS), via World Bank. Latest available year for each country.
Global Adult Literacy Rankings: Which Countries Lead?
At the top of the rankings, the differences are remarkably small. Just 0.16 percentage points separate the highest and tenth-highest reported adult literacy rates.
Beyond the three countries reporting 100%, Russia, San Marino, Latvia, Turkmenistan, Estonia, Belarus, and Palau all record adult literacy rates above 99.8%.
But these positions come with a limitation: countries report their literacy figures in different years. An older observation may not fully reflect a country's literacy level today.
The searchable table below provides the complete ranking of 163 countries, including each country's latest available adult literacy rate and reporting year.
Note: Rankings use the latest available observation for each country, rather than data collected in a single year.
Key Findings From the Global Literacy Data
1. 27 Countries Report Adult Literacy Rates of 99% or Higher
Near-universal literacy isn't limited to the countries holding the top spots.
Among the 163 countries analyzed, 27 report adult literacy rates of at least 99%. Several are located in Europe and Central Asia, including Russia, Latvia, Estonia, Belarus, Armenia, and Azerbaijan.
These figures suggest that basic reading and writing skills are nearly universal in many of the countries represented near the top.
Worth noting: A 99% adult literacy rate measures basic reading and writing ability. It doesn't mean that 99% of adults have advanced reading skills, digital proficiency, or higher education qualifications.
2. India Records 78.16% Adult Literacy — How Does South Asia Compare?
India's latest reported adult literacy rate stands at 78.16% (2024), placing it 117th among the 163 countries included in this ranking.
A look at its South Asian neighbors shows some notable differences:
- 🇧🇩 Bangladesh: 79.00% (2022)
- 🇮🇳 India: 78.16% (2024)
- 🇳🇵 Nepal: 68.71% (2019)
- 🇵🇰 Pakistan: 58.86% (2021)
Bangladesh's reported rate is just 0.84 percentage points higher than India's, while India stands 19.30 percentage points above Pakistan in the available data.
These comparisons provide useful regional context, although the figures come from different reporting years and should not be treated as a single-year comparison.
3. A 73.17-Percentage-Point Gap Separates the Highest and Lowest Rates
While some countries report nearly universal literacy, the lower end of the ranking tells a very different story.
Among the lowest recorded adult literacy rates are:
- South Sudan: 26.83% (2008)
- Chad: 30.63% (2019)
- Niger: 35.61% (2022)
- Mali: 35.63% (2024)
The difference between the highest reported rate of 100% and South Sudan's 26.83% is 73.17 percentage points.
This is a substantial gap, but South Sudan's observation dates back to 2008, so it cannot be taken as a measure of the country's current literacy level.
Even with this limitation, the available figures show how widely reported basic literacy levels differ across countries.
What Does Adult Literacy Rate Actually Measure?
The adult literacy rate measures the percentage of people aged 15 and above who can read and write, with understanding, a short and simple statement about everyday life.
It is a useful indicator of basic literacy, but it does not directly measure:
- Advanced reading comprehension or complex language skills
- Digital literacy and technical skills
- Educational quality or overall learning outcomes
A high literacy rate is an important educational indicator, but it does not provide a complete picture of a country's education system.
Methodology & Data Source
This analysis uses the World Bank's Literacy rate, adult total (% of people ages 15 and above) indicator (SE.ADT.LITR.ZS), based on data from the UNESCO Institute for Statistics (UIS).
- Source: World Bank, World Development Indicators; UNESCO Institute for Statistics.
- Coverage: 163 countries, excluding regional aggregates and dependent territories.
- Reporting years: Latest available observation per country, spanning 1970–2024.
- Ranking method: Countries sorted by reported adult literacy rate, with values displayed to two decimal places. Sequential ranks are used in the processed dataset, including for tied displayed values.
- Data collection: National censuses, household surveys, and other official statistical sources.
Reporting years and measurement methods vary between countries. These figures represent the latest available observations, not a global literacy ranking measured in a single year.
Official Source: World Bank — Adult Literacy Rate (UNESCO UIS)
Data License: CC BY 4.0
Data processed and ranked by The Data Visual.
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