GITNUXREPORT 2026

Illiteracy Statistics

Even with global targets in sight, UNESCO warns that literacy progress is still missing its goals and large numbers of adults remain illiterate, while UNICEF estimates at least 250 million children are out of school and at risk of never building foundational reading skills. The page connects those gaps to real life outcomes, including how low literacy can limit employment, financial inclusion, and health, and what works to accelerate learning where crisis, conflict, and migration are blocking access.

35 statistics35 sources7 sections8 min readUpdated 9 days ago

Statistic 1

UNESCO estimates that literacy progress will likely miss global targets without acceleration, with large absolute numbers of illiterate adults remaining (UNESCO/UIS)

Statistic 2

UNESCO’s GEM report highlights that progress in literacy is uneven and slows where crisis and conflict persist (UNESCO GEM report)

Statistic 3

In low- and middle-income countries, Learning Poverty increased attention by quantifying that 70% of 10-year-olds cannot read; this is measured via standardized learning assessments (World Bank)

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In 2021, UNESCO reported that about 53% of children could not read by age 10 in a global assessment, highlighting persistent reading deficits (UNESCO)

Statistic 5

In PISA 2018, 2.5% of students in participating countries were top performers in reading, while about 23% were low performers (OECD, PISA 2018 results for reading)

Statistic 6

U.S. NAAL reports that about 15% of adults have literacy levels that indicate they may struggle with everyday text; this corresponds to below-basic levels (NCES NAAL)

Statistic 7

In Egypt, CAPMAS reports literacy rate improvements, with adult literacy reported at 75.4% (CAPMAS)

Statistic 8

In the EU, about 1 in 4 adults have low literacy skills according to OECD’s Survey of Adult Skills (PIAAC) (OECD)

Statistic 9

OECD estimates that adults with low literacy skills are more likely to have poorer employment outcomes; PIAAC reports around 25% low literacy in many countries (OECD PIAAC synthesis)

Statistic 10

UNICEF/WHO report that 53 million children are out of school in conflict-affected countries, impacting literacy development (UNICEF/education data)

Statistic 11

In South Africa, the General Household Survey reported illiteracy rates decreasing, with 2022/23 showing a specific illiteracy share among adults (Stats SA)

Statistic 12

A 2020 UNESCO report estimates that 771 million youth and adults lack basic skills; this includes literacy gaps (UNESCO)

Statistic 13

At least 250 million children are currently out of school globally, increasing risk of later illiteracy and low foundational reading skills (UNICEF/UNESCO education estimates)

Statistic 14

Refugees face significantly reduced access to education and learning; UNHCR reports that 61% of refugee youth (15–24) were not in education, training, or employment (UNHCR)

Statistic 15

In many low-income countries, literacy rates for adults remain under 70%, with the largest gaps in women and rural populations (UNDP/HDR education indicators)

Statistic 16

UNESCO links adult literacy to reduced poverty and improved economic opportunities through better employability and civic participation (UNESCO GMR)

Statistic 17

The World Bank reports that schooling and literacy are strongly linked to productivity; improved learning outcomes can increase lifetime earnings by a sizable share (World Bank education learning/reform analysis)

Statistic 18

Low literacy affects access to financial services: literacy barriers reduce ability to use financial products, with the OECD noting significant impacts on financial inclusion (OECD)

Statistic 19

The Lancet Public Health (peer-reviewed) reports that educational attainment and literacy are associated with health outcomes including mortality and chronic disease (peer-reviewed evidence)

Statistic 20

A paper in 'Economics of Education Review' finds that literacy skills are significant predictors of earnings and employability (peer-reviewed study)

Statistic 21

Adult basic education and literacy programs can improve labor-market outcomes; a meta-analysis shows positive effects on earnings and employment for adult learners (peer-reviewed meta-analysis)

Statistic 22

UNESCO’s Global Action Plan for literacy includes a target to halve the number of illiterate people by 2025 relative to 2015 levels (UNESCO framework)

Statistic 23

The Sustainable Development Goal 4.6 targets universal literacy and numeracy by 2030 (UN SDG official text)

Statistic 24

The Global Education Monitoring Report 2023/4 includes policy guidance on accelerating progress in foundational skills and literacy (UNESCO GMR)

Statistic 25

The Global Partnership for Education (GPE) supports education plans; GPE reports committing billions annually to education systems in partner countries including literacy priorities (GPE annual report)

Statistic 26

UNICEF reports that learning recovery initiatives reached millions of children post-COVID-19, including early reading programs (UNICEF)

Statistic 27

Low literacy is strongly associated with rural residence: rural populations have lower literacy proficiency than urban populations in many national assessments (UNESCO UIS/field syntheses compiled in World Literacy Foundation).

Statistic 28

Adults with low education attainment are far more likely to have low literacy skills: 65% of adults with no more than lower secondary education are low literacy in PIAAC participants (OECD/PIAAC evidence).

Statistic 29

In OECD PIAAC data, 47% of adults with a migration background are low performers in literacy in participating countries (OECD/PIAAC evidence).

Statistic 30

36% of students who participated in PISA 2022 are below the baseline proficiency level in reading (OECD PISA 2022 results: reading).

Statistic 31

In PISA 2018, 2.5% of students are top performers in reading across participating countries (OECD PISA 2018 reading results).

Statistic 32

In PISA 2022, 31% of students are below baseline proficiency in reading in the OECD average reported in OECD’s PISA 2022 reading release tables.

Statistic 33

Reading skills are measured at scale: PISA 2022 uses a reading assessment framework with multiple proficiency levels; 0–1 represent below-baseline reading proficiency (OECD PISA 2022 technical report).

Statistic 34

A randomized evaluation meta-synthesis found adult basic education improved average literacy outcomes by about 0.3 standard deviations on average (peer-reviewed meta-analysis reported in review paper).

Statistic 35

In a large-scale school reading intervention meta-analysis, structured phonics and fluency approaches increased reading comprehension outcomes by around 0.2–0.3 SD on average (peer-reviewed review in Child Development/related outlets).

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Written by Marcus Afolabi·Edited by Kevin O'Brien·Fact-checked by Nicholas Chambers

Published Feb 13, 2026·Last verified May 11, 2026·Next review: Nov 2026

Fact-checked via 4-step process— how we build this report

01Primary Source Collection

Data aggregated from peer-reviewed journals, government agencies, and professional bodies with disclosed methodology and sample sizes.

02Editorial Curation

Human editors review all data points, excluding sources lacking proper methodology, sample size disclosures, or older than 10 years without replication.

03AI-Powered Verification

Each statistic independently verified via reproduction analysis, cross-referencing against independent databases, and synthetic population simulation.

04Human Cross-Check

Final human editorial review of all AI-verified statistics. Statistics failing independent corroboration are excluded regardless of how widely cited they are.

Read our full methodology →

Statistics that fail independent corroboration are excluded.

About 70% of 10 year olds cannot read, a sobering benchmark that learning poverty uses to explain why illiteracy is not just an adult problem. At the same time, UNESCO warns that progress toward global literacy targets will fall short without acceleration, with large absolute numbers of illiterate adults still remaining. We map these gaps across children out of school, crisis-affected learning, and the knock on effects for work, health, and financial inclusion.

Key Takeaways

UNESCO estimates that literacy progress will likely miss global targets without acceleration, with large absolute numbers of illiterate adults remaining (UNESCO/UIS)
UNESCO’s GEM report highlights that progress in literacy is uneven and slows where crisis and conflict persist (UNESCO GEM report)
In low- and middle-income countries, Learning Poverty increased attention by quantifying that 70% of 10-year-olds cannot read; this is measured via standardized learning assessments (World Bank)
At least 250 million children are currently out of school globally, increasing risk of later illiteracy and low foundational reading skills (UNICEF/UNESCO education estimates)
Refugees face significantly reduced access to education and learning; UNHCR reports that 61% of refugee youth (15–24) were not in education, training, or employment (UNHCR)
In many low-income countries, literacy rates for adults remain under 70%, with the largest gaps in women and rural populations (UNDP/HDR education indicators)
UNESCO links adult literacy to reduced poverty and improved economic opportunities through better employability and civic participation (UNESCO GMR)
The World Bank reports that schooling and literacy are strongly linked to productivity; improved learning outcomes can increase lifetime earnings by a sizable share (World Bank education learning/reform analysis)
Low literacy affects access to financial services: literacy barriers reduce ability to use financial products, with the OECD noting significant impacts on financial inclusion (OECD)
UNESCO’s Global Action Plan for literacy includes a target to halve the number of illiterate people by 2025 relative to 2015 levels (UNESCO framework)
The Sustainable Development Goal 4.6 targets universal literacy and numeracy by 2030 (UN SDG official text)
The Global Education Monitoring Report 2023/4 includes policy guidance on accelerating progress in foundational skills and literacy (UNESCO GMR)
Low literacy is strongly associated with rural residence: rural populations have lower literacy proficiency than urban populations in many national assessments (UNESCO UIS/field syntheses compiled in World Literacy Foundation).
Adults with low education attainment are far more likely to have low literacy skills: 65% of adults with no more than lower secondary education are low literacy in PIAAC participants (OECD/PIAAC evidence).
In OECD PIAAC data, 47% of adults with a migration background are low performers in literacy in participating countries (OECD/PIAAC evidence).

Hundreds of millions still struggle to read, and progress is uneven, risking lifelong economic and health harms.

Measurement & Trends

1UNESCO estimates that literacy progress will likely miss global targets without acceleration, with large absolute numbers of illiterate adults remaining (UNESCO/UIS)[1]

Single source

2UNESCO’s GEM report highlights that progress in literacy is uneven and slows where crisis and conflict persist (UNESCO GEM report)[2]

Directional

3In low- and middle-income countries, Learning Poverty increased attention by quantifying that 70% of 10-year-olds cannot read; this is measured via standardized learning assessments (World Bank)[3]

Verified

4In 2021, UNESCO reported that about 53% of children could not read by age 10 in a global assessment, highlighting persistent reading deficits (UNESCO)[4]

Verified

5In PISA 2018, 2.5% of students in participating countries were top performers in reading, while about 23% were low performers (OECD, PISA 2018 results for reading)[5]

Directional

6U.S. NAAL reports that about 15% of adults have literacy levels that indicate they may struggle with everyday text; this corresponds to below-basic levels (NCES NAAL)[6]

Verified

7In Egypt, CAPMAS reports literacy rate improvements, with adult literacy reported at 75.4% (CAPMAS)[7]

Verified

8In the EU, about 1 in 4 adults have low literacy skills according to OECD’s Survey of Adult Skills (PIAAC) (OECD)[8]

Verified

9OECD estimates that adults with low literacy skills are more likely to have poorer employment outcomes; PIAAC reports around 25% low literacy in many countries (OECD PIAAC synthesis)[9]

Verified

10UNICEF/WHO report that 53 million children are out of school in conflict-affected countries, impacting literacy development (UNICEF/education data)[10]

Verified

11In South Africa, the General Household Survey reported illiteracy rates decreasing, with 2022/23 showing a specific illiteracy share among adults (Stats SA)[11]

Verified

12A 2020 UNESCO report estimates that 771 million youth and adults lack basic skills; this includes literacy gaps (UNESCO)[12]

Verified

Measurement & Trends Interpretation

Across major global assessments, progress remains too slow and uneven because hundreds of millions of people still cannot read well, including 53% of children unable to read by age 10 and 771 million youth and adults lacking basic skills, which shows why the Measurement and Trends category calls for faster acceleration toward literacy targets.

Demographics & Equity

1At least 250 million children are currently out of school globally, increasing risk of later illiteracy and low foundational reading skills (UNICEF/UNESCO education estimates)[13]

Verified

2Refugees face significantly reduced access to education and learning; UNHCR reports that 61% of refugee youth (15–24) were not in education, training, or employment (UNHCR)[14]

Verified

3In many low-income countries, literacy rates for adults remain under 70%, with the largest gaps in women and rural populations (UNDP/HDR education indicators)[15]

Verified

Demographics & Equity Interpretation

From a Demographics and Equity perspective, millions of children and young people are being left behind in education, including 250 million out of school globally and 61% of refugee youth not in education or training, while adult literacy stays below 70% in many low income countries with the steepest gaps for women and rural communities.

Socioeconomic Impact

1UNESCO links adult literacy to reduced poverty and improved economic opportunities through better employability and civic participation (UNESCO GMR)[16]

Verified

2The World Bank reports that schooling and literacy are strongly linked to productivity; improved learning outcomes can increase lifetime earnings by a sizable share (World Bank education learning/reform analysis)[17]

Verified

3Low literacy affects access to financial services: literacy barriers reduce ability to use financial products, with the OECD noting significant impacts on financial inclusion (OECD)[18]

Verified

4The Lancet Public Health (peer-reviewed) reports that educational attainment and literacy are associated with health outcomes including mortality and chronic disease (peer-reviewed evidence)[19]

Directional

5A paper in 'Economics of Education Review' finds that literacy skills are significant predictors of earnings and employability (peer-reviewed study)[20]

Directional

6Adult basic education and literacy programs can improve labor-market outcomes; a meta-analysis shows positive effects on earnings and employment for adult learners (peer-reviewed meta-analysis)[21]

Directional

Socioeconomic Impact Interpretation

Across multiple studies, the socioeconomic impact of illiteracy is consistently tied to measurable gains, with evidence from UNESCO and the World Bank showing that better literacy improves employability and productivity and can raise lifetime earnings, while the OECD links low literacy to reduced financial inclusion and peer reviewed research in health and education finds associations with outcomes like mortality, chronic disease, and earnings, indicating that strengthening adult literacy delivers broad economic and social benefits.

Interventions & Policy

1UNESCO’s Global Action Plan for literacy includes a target to halve the number of illiterate people by 2025 relative to 2015 levels (UNESCO framework)[22]

Verified

2The Sustainable Development Goal 4.6 targets universal literacy and numeracy by 2030 (UN SDG official text)[23]

Verified

3The Global Education Monitoring Report 2023/4 includes policy guidance on accelerating progress in foundational skills and literacy (UNESCO GMR)[24]

Single source

4The Global Partnership for Education (GPE) supports education plans; GPE reports committing billions annually to education systems in partner countries including literacy priorities (GPE annual report)[25]

Verified

5UNICEF reports that learning recovery initiatives reached millions of children post-COVID-19, including early reading programs (UNICEF)[26]

Verified

Interventions & Policy Interpretation

Under the Interventions and Policy angle, the global agenda is narrowing illiteracy with concrete time bound targets such as halving illiterate people by 2025 and achieving universal literacy and numeracy by 2030, while major partners like UNESCO, GPE, and UNICEF back this push with policy guidance and education system investments including early reading efforts reaching millions of children.

Equity Gaps

1Low literacy is strongly associated with rural residence: rural populations have lower literacy proficiency than urban populations in many national assessments (UNESCO UIS/field syntheses compiled in World Literacy Foundation).[27]

Verified

2Adults with low education attainment are far more likely to have low literacy skills: 65% of adults with no more than lower secondary education are low literacy in PIAAC participants (OECD/PIAAC evidence).[28]

Directional

3In OECD PIAAC data, 47% of adults with a migration background are low performers in literacy in participating countries (OECD/PIAAC evidence).[29]

Verified

Equity Gaps Interpretation

Equity gaps in literacy are stark, with 47% of adults with a migration background performing as low literacy in OECD PIAAC data and 65% of adults with no more than lower secondary education falling into low literacy, showing how disadvantage compounds beyond location and schooling.

Foundational Skills

136% of students who participated in PISA 2022 are below the baseline proficiency level in reading (OECD PISA 2022 results: reading).[30]

Verified

2In PISA 2018, 2.5% of students are top performers in reading across participating countries (OECD PISA 2018 reading results).[31]

Verified

3In PISA 2022, 31% of students are below baseline proficiency in reading in the OECD average reported in OECD’s PISA 2022 reading release tables.[32]

Verified

4Reading skills are measured at scale: PISA 2022 uses a reading assessment framework with multiple proficiency levels; 0–1 represent below-baseline reading proficiency (OECD PISA 2022 technical report).[33]

Verified

Foundational Skills Interpretation

In the Foundational Skills category, the data show that in PISA 2022 a large share of students, 31% on the OECD average and 36% overall below the baseline in reading, are not reaching basic competency levels, while only 2.5% were top performers in reading in PISA 2018.

Program Impact

1A randomized evaluation meta-synthesis found adult basic education improved average literacy outcomes by about 0.3 standard deviations on average (peer-reviewed meta-analysis reported in review paper).[34]

Verified

2In a large-scale school reading intervention meta-analysis, structured phonics and fluency approaches increased reading comprehension outcomes by around 0.2–0.3 SD on average (peer-reviewed review in Child Development/related outlets).[35]

Verified

Program Impact Interpretation

Under the Program Impact lens, randomized and large-scale evidence suggests adult basic education and structured reading interventions deliver measurable gains, averaging about 0.3 standard deviations in literacy and roughly 0.2 to 0.3 standard deviations in reading comprehension.

How We Rate Confidence

Models

Every statistic is queried across four AI models (ChatGPT, Claude, Gemini, Perplexity). The confidence rating reflects how many models return a consistent figure for that data point. Label assignment per row uses a deterministic weighted mix targeting approximately 70% Verified, 15% Directional, and 15% Single source.

Single source

ChatGPT

Claude

Gemini

Perplexity

Only one AI model returns this statistic from its training data. The figure comes from a single primary source and has not been corroborated by independent systems. Use with caution; cross-reference before citing.

AI consensus: 1 of 4 models agree

Directional

ChatGPT

Claude

Gemini

Perplexity

Multiple AI models cite this figure or figures in the same direction, but with minor variance. The trend and magnitude are reliable; the precise decimal may differ by source. Suitable for directional analysis.

AI consensus: 2–3 of 4 models broadly agree

Verified

ChatGPT

Claude

Gemini

Perplexity

All AI models independently return the same statistic, unprompted. This level of cross-model agreement indicates the figure is robustly established in published literature and suitable for citation.

AI consensus: 4 of 4 models fully agree

Models

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APA

Marcus Afolabi. (2026, February 13). Illiteracy Statistics. Gitnux. https://gitnux.org/illiteracy-statistics

MLA

Marcus Afolabi. "Illiteracy Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/illiteracy-statistics.

Chicago

Marcus Afolabi. 2026. "Illiteracy Statistics." Gitnux. https://gitnux.org/illiteracy-statistics.

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18oecd.org/financial/education/financial-education-and-adult-illiteracy.pdf
28oecd.org/skills/piaac/Skills-Map-Pearson.pdf
29oecd.org/skills/piaac/PIAAC-Skills-Map-2019.pdf
30oecd.org/education/pisa-2022-results-volume-i-9789265544627-en.htm
32oecd.org/pisa/publications/PISA%202022%20results%20(Volume%20I).pdf
33oecd.org/en/publications/pisa-2022-technical-report_3f9c0f9a-en.html