Portugal vs Tonga: 25_SDR holdings, per square kilometre

Portugal
40,945 units per square kilometre
in 2023
Tonga
34,958 units per square kilometre
in 2023
Portugal rank
36th
Tonga rank
39th

25_SDR holdings, per square kilometre over time

  • Portugal
  • Tonga
010.0k20.0k30.0k40.0k199020062023

How they compare

Portugal currently reports 40,945 units per square kilometre against 34,958 units per square kilometre in Tonga, a difference of 5,987 units per square kilometre.

That makes Portugal's figure about 1.2 times Tonga's.

The two have swapped places 4 times across 34 shared years of data; in 1990 it was Portugal ahead.

Portugal ranks 36th and Tonga ranks 39th of 188 countries.

Across the 4 decades both report, Portugal averaged higher in 3 and Tonga in 1.

Head to head by decade

Decade Portugal Tonga Difference Ahead
1990s 785.52 units per square kilometre 526.67 units per square kilometre 258.85 units per square kilometre Portugal
2000s 990.07 units per square kilometre 528.83 units per square kilometre 461.24 units per square kilometre Portugal
2010s 11,205 units per square kilometre 13,120 units per square kilometre 1,915 units per square kilometre Tonga
2020s 24,523 units per square kilometre 22,945 units per square kilometre 1,578 units per square kilometre Portugal

Averages of every year both report within each decade.

Frequently asked questions

Which has higher 25_sdr holdings, per square kilometre, Portugal or Tonga?
Portugal, at 40,945 units per square kilometre against 34,958 units per square kilometre in Tonga as of 2023.
What is the difference in 25_sdr holdings, per square kilometre between Portugal and Tonga?
5,987 units per square kilometre, with Portugal ahead.
How many years of comparable data are there for Portugal and Tonga?
34 years are reported by both, from 1990 to 2023.
How do Portugal and Tonga rank globally for 25_sdr holdings, per square kilometre?
Portugal ranks 36th and Tonga ranks 39th of 188 countries.
Where does this data come from?
Statizoid (derived), published as 25_SDR holdings, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Portugal vs Tonga: 25_SDR holdings, per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 21 September 2026, from https://reference.statizoid.com/compare/25-sdr-holdings-per-square-kilometre/portugal/tonga/

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About this data

Indicator
25_SDR holdings, per square kilometre
Unit
units per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
188 places, 6,198 data points, 1990–2023
Last refreshed

25_SDR holdings divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.