UIS: Percentage of population age 25+ with at least completed lower in United States of America

United States of America: UIS: Percentage of population age 25+ with at least completed lower was 1.0% in 2018. ▬ Flat

Latest (2018)
1.0%
Change on year
down 0.2%
World rank
19th
of 84 countries
All-time high
1.0%
in 1980
All-time low
1.0%
in 2018
Years of data
15
1980–2018

UIS: Percentage of population age 25+ with at least completed lower in United States of America, 1980–2018

00.250.50.7511980199920181980: 1 GPIA1981: 1 GPIA2004: 1 GPIA2005: 1 GPIA2006: 1 GPIA2008: 1 GPIA2009: 1 GPIA2010: 1 GPIA2011: 1 GPIA2012: 1 GPIA2013: 1 GPIA2014: 1 GPIA2015: 1 GPIA2016: 1 GPIA2018: 1 GPIA

Source: UNESCO Institute for Statistics. Measured in GPIA.

Analysis

The most recent figure for uis: percentage of population age 25+ with at least completed lower in United States of America is 1.0%, measured in 2018. That is the lowest value across all 15 years on record.

That represents a change of down 0.2% on the previous year and down 0.4% over ten years.

Over the whole period, uis: percentage of population age 25+ with at least completed lower in United States of America peaked at 1.0% in 1980 and was at its lowest, 1.0%, in 2018.

United States of America ranks 19th of 84 countries on this measure, in the top quarter.

UIS: Percentage of population age 25+ with at least completed lower in United States of America, year by year

Annual values for UIS: Percentage of population age 25+ with at least completed lower secondary education (ISCED 2 or higher). Adjusted Gender Parity Index (GPIA) in United States of America, 1980 to 2018.
Year GPIA Change
1980 1.0%
1981 1.0% -0.1%
2004 1.0% -0.3%
2005 1.0% +0.0%
2006 1.0% +0.2%
2008 1.0% -0.1%
2009 1.0% -0.1%
2010 1.0% -0.0%
2011 1.0% -0.1%
2012 1.0% +0.0%
2013 1.0% +0.1%
2014 1.0% -0.0%
2015 1.0% -0.0%
2016 1.0% -0.1%
2018 1.0% -0.2%

Averages by decade

DecadeAverage LowestHighest Years
1980s 1.0% 1.0% 1.0% 2
2000s 1.0% 1.0% 1.0% 5
2010s 1.0% 1.0% 1.0% 8

Countries ranked near United States of America

  1. 16 Trinidad and Tobago 1.0% compare
  2. 17 Fiji 1.0% compare
  3. 18 Puerto Rico 1.0% compare
  4. 20 Czechia 1.0% compare
  5. 21 Australia 1.0% compare
  6. 22 Canada 1.0% compare
  7. 22 Latvia 1.0% compare
  8. 22 Luxembourg 1.0% compare

See the full ranking of 84 places →

More reference data data for United States of America

All data for United States of America →

Frequently asked questions

What is uis: percentage of population age 25+ with at least completed lower in United States of America?
Uis: percentage of population age 25+ with at least completed lower in United States of America was 1.0% in 2018, according to UNESCO Institute for Statistics.
What is the highest uis: percentage of population age 25+ with at least completed lower recorded in United States of America?
The highest recorded value was 1.0% in 1980.
What is the lowest uis: percentage of population age 25+ with at least completed lower recorded in United States of America?
The lowest recorded value was 1.0% in 2018.
How does United States of America rank for uis: percentage of population age 25+ with at least completed lower?
United States of America ranks 19th out of 84 countries with data for 2018.
Is uis: percentage of population age 25+ with at least completed lower rising or falling in United States of America?
Over the last ten years it is down 0.4%. The long-run trend across the full record is flat.
Where does this United States of America data come from?
The figures come from UNESCO Institute for Statistics, published as part of UIS: Percentage of population age 25+ with at least completed lower secondary education (ISCED 2 or higher). Adjusted Gender Parity Index (GPIA). Statizoid updates them automatically from the source API.

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UIS: Percentage of population age 25+ with at least completed lower in United States of America. Statizoid, drawing on UNESCO Institute for Statistics. Retrieved 04 September 2026, from https://reference.statizoid.com/stat/uis-percentage-of-population-age-25-with-at-least-completed-lower-secondary-education-4/united-states/

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About this data

Indicator
UIS: Percentage of population age 25+ with at least completed lower secondary education (ISCED 2 or higher). Adjusted Gender Parity Index (GPIA)
Unit
GPIA
Source
UNESCO Institute for Statistics
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
84 places, 926 data points, 1970–2019
Last refreshed

The Adjusted Gender Parity Index (GPIA) is calculated by dividing the female value for the indicator by the male value for the indicator. If the resulting value exceeds 1, the ratio is inverted and subtracted from 2. The adjusted gender parity index is symmetrical around 1 and lies in the range 0-2. An adjusted GPI equal to 1 indicates parity between females and males. In general, a value less than 1 indicates disparity in favor of males and a value greater than 1 indicates disparity in favor of females. For more information, consult the UNESCO Institute for Statistics: http://uis.unesco.org/