Adult illiterate population, 15+ years, both sexes in Portugal

Portugal: Adult illiterate population, 15+ years, both sexes was 342,869 number in 2018. ▼ Falling

Latest (2018)
342,869 number
World rank
55th
of 87 countries
All-time high
1.51 million number
in 1981
All-time low
342,869 number
in 2018
Years of data
5
1981–2018

Adult illiterate population, 15+ years, both sexes in Portugal, 1981–2018

250.0k500.0k750.0k1.0M1.2M1.5M1981199920181981: 1.5M number1991: 957.8k number2001: 832.3k number2011: 497.4k number2018: 342.9k number

Source: UNESCO Institute for Statistics. Measured in number.

Analysis

Portugal recorded 342,869 number for adult illiterate population, 15+ years, both sexes in 2018. That is the lowest value across all 5 years on record.

Compared with earlier readings it is down 31.1% over ten years.

Over the whole period, adult illiterate population, 15+ years, both sexes in Portugal peaked at 1.51 million number in 1981 and was at its lowest, 342,869 number, in 2018.

That places Portugal 55th out of 87 countries with data for 2018, putting it in the middle of the range.

Adult illiterate population, 15+ years, both sexes in Portugal, year by year

Annual values for Adult illiterate population, 15+ years, both sexes (number) in Portugal, 1981 to 2018.
Year number Change
1981 1.51 million number
1991 957,766 number -36.5%
2001 832,328 number -13.1%
2011 497,433 number -40.2%
2018 342,869 number -31.1%

Averages by decade

DecadeAverage LowestHighest Years
1980s 1.51 million number 1.51 million number 1.51 million number 1
1990s 957,766 number 957,766 number 957,766 number 1
2000s 832,328 number 832,328 number 832,328 number 1
2010s 420,151 number 342,869 number 497,433 number 2

Countries ranked near Portugal

  1. 52 Chile 530,956 number compare
  2. 53 El Salvador 515,242 number compare
  3. 54 Dominican Republic 462,294 number compare
  4. 56 Argentina 333,000 number compare
  5. 57 Paraguay 293,076 number compare
  6. 58 Greece 186,626 number compare

See the full ranking of 126 places →

More education data for Portugal

All data for Portugal →

Frequently asked questions

What is adult illiterate population, 15+ years, both sexes in Portugal?
Adult illiterate population, 15+ years, both sexes in Portugal was 342,869 number in 2018, according to UNESCO Institute for Statistics.
What is the highest adult illiterate population, 15+ years, both sexes recorded in Portugal?
The highest recorded value was 1.51 million number in 1981.
What is the lowest adult illiterate population, 15+ years, both sexes recorded in Portugal?
The lowest recorded value was 342,869 number in 2018.
How does Portugal rank for adult illiterate population, 15+ years, both sexes?
Portugal ranks 55th out of 87 countries with data for 2018.
Is adult illiterate population, 15+ years, both sexes rising or falling in Portugal?
Over the last ten years it is down 31.1%. The long-run trend across the full record is falling.
Where does this Portugal data come from?
The figures come from UNESCO Institute for Statistics, published as part of Adult illiterate population, 15+ years, both sexes (number). Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 5 observations, free to reuse under CC BY 4.0 (World Bank Open Data).

Share, cite or embed this page

Cite this page

Adult illiterate population, 15+ years, both sexes in Portugal. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 11 September 2026, from https://education.statizoid.com/stat/adult-illiterate-population-15-years-both-sexes-number/portugal/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under CC BY 4.0 (World Bank Open Data); please keep the attribution.

<a href="https://education.statizoid.com/stat/adult-illiterate-population-15-years-both-sexes-number/portugal/">Adult illiterate population, 15+ years, both sexes in Portugal</a> — Statizoid

About this data

Indicator
Adult illiterate population, 15+ years, both sexes (number)
Unit
number
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
126 places, 2,267 data points, 1970–2019
Last refreshed

Total number of adults over age 15 who cannot both read and write with understanding a short simple statement on their everyday life.