The Koreans of Japan

The Koreans of Japan, numbering approximately 796,000 people, are Engaged yet Unreached. They are an East Asian ethnic group native to the Korean Peninsula, today forming the dominant populations of South Korea and North Korea, with a large global diaspora. They are an Diaspora people in the Korean people cluster of the East Asian Peoples affinity bloc. Their primary language is Korean and their primary religion is Atheism.

Photo by Google. (2026). Image generated by Gemini 3.1 Flash: Korean

Fast Facts:

Affinity Group: East Asian Peoples
Country: Japan
People Cluster: Korean
Primary Language(s): Korean (kor)
Primary Religion(s): Atheism
Population: 796,000
Strategic Progress Index (SPI): Engaged yet Unreached
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Recent CP Activity
People Group ID: PG007572
View on Joshua Project

Pray for the Koreans of Japan

Join others around the world in praying for the lost to be saved, the gospel to advance, the global Church to grow, and for laborers to be sent out and sustained in the harvest.

Dig Deeper (Religion):

Primary Religion: Atheism
Religious Affiliation: Unaffiliated

54%
%

Dig Deeper (Language):

Primary Language: Korean
Language Family: Koreanic

100%
%

Media Resources in Korean:

Films:

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Bible Resources in Korean:

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Or check out the Korean bible at Bible.com

Linked from YouVersion

Explore Lostness and Next Steps

Unengaged and Unreached

Strategic Priority Index (SPI): Unengaged and Unreached (SPI: 1), which means there are less than 2% evangelical Christian populations among which there are no known efforts focused on establishing self-sustaining churches consistent with evangelical faith and practice.
Lostness Priority Index (LPI): Expanding Unreached People Group, (LPI: 2), 0.5% or Greater but Less than 2% Evangelical.
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Recent CP Activity (GSEC: 1), this people group is less than 2% evangelical, some evangelical resources are available, but there has been no active church planting among them within the past two years

Next steps for the Koreans:
Begin signifcant prayer and fasting for this group
Send cross-cultural teams to discover and research this people group
Begin gospel seed sowing and church planting among this group

SPI: Unreached yet Engaged

The Koreans are Engaged yet Unreached, which means there are less than 2% evangelical Christian populations but there are sustained efforts at establishing self-sustaining churches consistent with evangelical faith and practice.

Next steps for the Koreans:
Continue prayer and fasting for this group
Continue gospel seed sowing and church planting among this group
Begin training up local leaders to lead and develop strategies to reach their own people

SPI: No longer Unreached

The Koreans are No Longer Unreached, which means there are more than 2% evangelical Christian populations and there are churches consistent with evangelical faith and practice. There is still more to be done among them.

Next steps for the Koreans:
Empower local believers to begin praying for their own people
Continue gospel seed sowing and church planting
Encourage local leaders to being leading church planting strategy and looking for Unreached and Unengaged groups nearby

Pray specifically for the Koreans of Japan

For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth.
readRomans 1:18

Pray that God will have mercy and open the eyes of those who don't know Jesus, so that they can turn to the One who is able to save them from their sins.

No, I tell you; but unless you repent, you will all likewise perish.
readLuke 13:3

Pray that the lost will repent and believe the gospel, for without it, they will perish.

Finally, be strong in the Lord and in the strength of his might. Put on the whole armor of God, that you may be able to stand against the schemes of the devil.
readEphesians 6:10-11

Pray that as people place their faith in Christ, they will grow strong in His power, putting on the full armor of God, which will enable them to stand against the devil’s lies.

But seek the welfare of the city where I have sent you into exile, and pray to the LORD on its behalf, for in its welfare you will find your welfare.
readJeremiah 29:7

Pray that God will lead the lost among them to followers of Jesus who will share the gospel with them so that they may believe and take the message of hope to their families and friends.

Korean Across Countries (ROP3 - 105225) reported in the following countries:

To download a comprehensive people group list in spreadsheet form, visit our Research Data page.

Peoplegroups.org relies on updates from the field and other organizations for much of our data, so if you have any updates, please contact us. We use various international naming standards. For a list of these standards and fields, visit our Definitions page.

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