Portugal vs Tonga: SDRs holdings, SDR, per square kilometre

Portugal
29,400 units per square kilometre
in 2023
Tonga
26,070 units per square kilometre
in 2023
Portugal rank
35th
Tonga rank
38th

SDRs holdings, SDR, per square kilometre over time

  • Portugal
  • Tonga
010.0k20.0k30.0k196119922023

How they compare

Portugal currently reports 29,400 units per square kilometre against 26,070 units per square kilometre in Tonga, a difference of 3,330 units per square kilometre.

That makes Portugal's figure about 1.1 times Tonga's.

The two have swapped places 11 times across 63 shared years of data; in 1961 it was Tonga ahead.

Portugal ranks 35th and Tonga ranks 38th of 189 countries.

Across the 7 decades both report, Portugal averaged higher in 5 and Tonga in 1.

Head to head by decade

Decade Portugal Tonga Difference Ahead
1960s 0 units per square kilometre 0 units per square kilometre 0 units per square kilometre —
1970s 21.58 units per square kilometre 0 units per square kilometre 21.58 units per square kilometre Portugal
1980s 168.44 units per square kilometre 38.89 units per square kilometre 129.55 units per square kilometre Portugal
1990s 617.42 units per square kilometre 364.85 units per square kilometre 252.57 units per square kilometre Portugal
2000s 1,542 units per square kilometre 1,317 units per square kilometre 224.8 units per square kilometre Portugal
2010s 7,583 units per square kilometre 8,898 units per square kilometre 1,316 units per square kilometre Tonga
2020s 23,795 units per square kilometre 21,379 units per square kilometre 2,416 units per square kilometre Portugal

Averages of every year both report within each decade.

Frequently asked questions

Which has higher sdrs holdings, sdr, per square kilometre, Portugal or Tonga?
Portugal, at 29,400 units per square kilometre against 26,070 units per square kilometre in Tonga as of 2023.
What is the difference in sdrs holdings, sdr, per square kilometre between Portugal and Tonga?
3,330 units per square kilometre, with Portugal ahead.
How many years of comparable data are there for Portugal and Tonga?
63 years are reported by both, from 1961 to 2023.
How do Portugal and Tonga rank globally for sdrs holdings, sdr, per square kilometre?
Portugal ranks 35th and Tonga ranks 38th of 189 countries.
Where does this data come from?
Statizoid (derived), published as SDRs holdings, SDR, 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: SDRs holdings, SDR, per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 11 October 2026, from https://economy.statizoid.com/compare/sdrs-holdings-sdr-per-square-kilometre/portugal/tonga/

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About this data

Indicator
SDRs holdings, SDR, per square kilometre
Unit
units per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
191 places, 10,792 data points, 1961–2023
Last refreshed

SDRs holdings, SDR 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.