Hong Kong vs South Korea: How have things changed?, per square kilometre

Hong Kong
84.42 metric tons per square kilometre
in 2023
South Korea
37.98 metric tons per square kilometre
in 2023
Hong Kong rank
9th
South Korea rank
12th

How have things changed?, per square kilometre over time

  • Hong Kong
  • South Korea
050100150200250196519942023

How they compare

Hong Kong currently reports 84.42 metric tons per square kilometre against 37.98 metric tons per square kilometre in South Korea, a difference of 46.44 metric tons per square kilometre.

That makes Hong Kong's figure about 2.2 times South Korea's.

Across all 59 years both countries report, Hong Kong has been ahead every year.

Hong Kong ranks 9th and South Korea ranks 12th of 215 countries.

Hong Kong has averaged higher in every one of the 7 decades both report.

Head to head by decade

Decade Hong Kong South Korea Difference Ahead
1960s 84.15 metric tons per square kilometre 7.93 metric tons per square kilometre 76.22 metric tons per square kilometre Hong Kong
1970s 147.46 metric tons per square kilometre 19.43 metric tons per square kilometre 128.04 metric tons per square kilometre Hong Kong
1980s 208.57 metric tons per square kilometre 31.3 metric tons per square kilometre 177.26 metric tons per square kilometre Hong Kong
1990s 202.03 metric tons per square kilometre 33.27 metric tons per square kilometre 168.76 metric tons per square kilometre Hong Kong
2000s 158.12 metric tons per square kilometre 29.28 metric tons per square kilometre 128.83 metric tons per square kilometre Hong Kong
2010s 145.47 metric tons per square kilometre 34.69 metric tons per square kilometre 110.78 metric tons per square kilometre Hong Kong
2020s 98.01 metric tons per square kilometre 37.95 metric tons per square kilometre 60.06 metric tons per square kilometre Hong Kong

Averages of every year both report within each decade.

Frequently asked questions

Which has higher how have things changed?, per square kilometre, Hong Kong or South Korea?
Hong Kong, at 84.42 metric tons per square kilometre against 37.98 metric tons per square kilometre in South Korea as of 2023.
What is the difference in how have things changed?, per square kilometre between Hong Kong and South Korea?
46.44 metric tons per square kilometre, with Hong Kong ahead.
How many years of comparable data are there for Hong Kong and South Korea?
59 years are reported by both, from 1965 to 2023.
How do Hong Kong and South Korea rank globally for how have things changed?, per square kilometre?
Hong Kong ranks 9th and South Korea ranks 12th of 215 countries.
Where does this data come from?
Statizoid (derived), published as How have things changed?, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Hong Kong vs South Korea: How have things changed?, per square kilometre. Statizoid, drawing on Statizoid (derived). Retrieved 28 September 2026, from https://reference.statizoid.com/compare/how-have-things-changed-per-square-kilometre/hong-kong-sar-china/korea-rep/

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<a href="https://reference.statizoid.com/compare/how-have-things-changed-per-square-kilometre/hong-kong-sar-china/korea-rep/">Hong Kong vs South Korea: How have things changed?, per square kilometre</a> — Statizoid

About this data

Indicator
How have things changed?, per square kilometre
Unit
metric tons per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
215 places, 11,549 data points, 1965–2023
Last refreshed

How have things changed? 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.