Which has higher judicial checks on government index, Japan or South Korea?

Japan, at 0.881 against 0.872 in South Korea as of 2025.

How many years of comparable data are there for Japan and South Korea?

237 years are reported by both, from 1789 to 2025.

Where does this data come from?

V-Dem (2026) – processed by Our World in Data, published as Judicial Checks on Government Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

Japan vs South Korea: Judicial Checks on Government Index

Japan

0.881

in 2025

South Korea

0.872

in 2025

Japan rank

33rd

South Korea rank

36th

Judicial Checks on Government Index over time

Japan
South Korea

How they compare

Japan currently reports 0.881 against 0.872 in South Korea, a difference of 0.009.

The two have swapped places 5 times across 237 shared years of data; in 1789 it was South Korea ahead.

Japan ranks 33rd and South Korea ranks 36th of 176 countries.

Across the 25 decades both report, Japan averaged higher in 16 and South Korea in 9.

Head to head by decade

Decade	Japan	South Korea	Difference	Ahead
1780s	0.092	0.127	0.035	South Korea
1790s	0.092	0.127	0.035	South Korea
1800s	0.092	0.127	0.035	South Korea
1810s	0.092	0.127	0.035	South Korea
1820s	0.092	0.127	0.035	South Korea
1830s	0.092	0.127	0.035	South Korea
1840s	0.092	0.127	0.035	South Korea
1850s	0.092	0.127	0.035	South Korea
1860s	0.0987	0.127	0.0283	South Korea
1870s	0.4742	0.127	0.3472	Japan
1880s	0.643	0.127	0.516	Japan
1890s	0.69	0.136	0.554	Japan
1900s	0.672	0.14	0.532	Japan
1910s	0.674	0.107	0.567	Japan
1920s	0.675	0.107	0.568	Japan
1930s	0.675	0.107	0.568	Japan
1940s	0.7314	0.1895	0.5419	Japan
1950s	0.882	0.4242	0.4578	Japan
1960s	0.882	0.3427	0.5393	Japan
1970s	0.882	0.2362	0.6458	Japan
1980s	0.882	0.389	0.493	Japan
1990s	0.882	0.8618	0.0202	Japan
2000s	0.882	0.8779	0.0041	Japan
2010s	0.8736	0.8217	0.0519	Japan
2020s	0.8743	0.8622	0.0122	Japan

Averages of every year both report within each decade.

Frequently asked questions

Which has higher judicial checks on government index, Japan or South Korea?: Japan, at 0.881 against 0.872 in South Korea as of 2025.
What is the difference in judicial checks on government index between Japan and South Korea?: 0.009, with Japan ahead.
How many years of comparable data are there for Japan and South Korea?: 237 years are reported by both, from 1789 to 2025.
How do Japan and South Korea rank globally for judicial checks on government index?: Japan ranks 33rd and South Korea ranks 36th of 176 countries.
Where does this data come from?: V-Dem (2026) – processed by Our World in Data, published as Judicial Checks on Government Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Japan vs South Korea: Judicial Checks on Government Index. Statizoid, drawing on V-Dem (2026) – processed by Our World in Data. Retrieved 08 November 2026, from https://reference.statizoid.com/compare/judicial-constraints-on-the-executive-index/japan/korea-rep/

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About this data

Indicator: Judicial Checks on Government Index
Source: V-Dem (2026) – processed by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 176 places, 29,297 data points, 1789–2025
Last refreshed: 30 October 2026

Central estimate of the extent to which the executive respects the constitution, complies with the judiciary and high courts, and higher and lower courts are independent.