Portugal vs United States of America: Proportion of students at the end of lower secondary education

Portugal
0.8599 NPIA
in 2022
United States of America
0.8148 NPIA
in 2022
Portugal rank
18th
United States of America rank
21st

Proportion of students at the end of lower secondary education over time

  • Portugal
  • United States of America
00.250.50.751200020112022

How they compare

Portugal currently reports 0.8599 NPIA against 0.8148 NPIA in United States of America, a difference of 0.0451 NPIA.

That makes Portugal's figure about 1.1 times United States of America's.

The two have swapped places 4 times across 7 shared years of data; in 2000 it was Portugal ahead.

Portugal ranks 18th and United States of America ranks 21st of 49 countries.

Across the 3 decades both report, Portugal averaged higher in 1 and United States of America in 2.

Head to head by decade

Decade Portugal United States of America Difference Ahead
2000s 0.8856 NPIA 0.8869 NPIA 0.0013 NPIA United States of America
2010s 0.892 NPIA 0.9538 NPIA 0.0618 NPIA United States of America
2020s 0.8599 NPIA 0.8148 NPIA 0.0451 NPIA Portugal

Averages of every year both report within each decade.

Frequently asked questions

Which has higher proportion of students at the end of lower secondary education, Portugal or United States of America?
Portugal, at 0.8599 NPIA against 0.8148 NPIA in United States of America as of 2022.
What is the difference in proportion of students at the end of lower secondary education between Portugal and United States of America?
0.0451 NPIA, with Portugal ahead.
How many years of comparable data are there for Portugal and United States of America?
7 years are reported by both, from 2000 to 2022.
How do Portugal and United States of America rank globally for proportion of students at the end of lower secondary education?
Portugal ranks 18th and United States of America ranks 21st of 49 countries.
Where does this data come from?
UNESCO Institute for Statistics, published as Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in reading, adjusted native parity index (NPIA). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Portugal vs United States of America: Proportion of students at the end of lower secondary education. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 16 September 2026, from https://education.statizoid.com/compare/proportion-of-students-at-the-end-of-lower-secondary-education-achieving-at-least-a-51/portugal/united-states/

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About this data

Indicator
Proportion of students at the end of lower secondary education achieving at least a minimum proficiency level in reading, adjusted native parity index (NPIA)
Unit
NPIA
Source
UNESCO Institute for Statistics
Licence
CC BY-SA 3.0 IGO (UNESCO Institute for Statistics)
Coverage
49 places, 345 data points, 2000–2022
Last refreshed

February 2026 Data Release