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PEOPLE GROUP PROFILE

The Kusaiean of Nauru

The Kusaiean of Nauru, numbering approximately 125 people, are No Longer Unreached. They are a Micronesian ethnic group indigenous to the Kosrae Island in the Federated States of Micronesia. They are an Diaspora people in the Micronesian people cluster of the Pacific Islander Peoples affinity bloc. Their primary language is Kosraean and their primary religion is Protestantism.

Photo by Google. (2026). Image generated by Gemini 2.5 Flash: Kusaiean

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Nauru
People Cluster: Micronesian
Primary Language(s): Kosraean (kos)
Primary Religion(s): Protestantism
Population: 125
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG009560
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Pray for the Kusaiean of Nauru

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.

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Dig Deeper (Religion):

Primary Religion: Protestantism
Religious Affiliation: Christianity

—
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Kosraean
Language Family: Austronesian

100%
%
Kosraean Speakers

Media Resources in Kosraean:

Films:

No entries found for: Kosraean(kos). Help build some!

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Bible Resources in Kosraean:

Provided by Faith Comes by Hearing

Or check out the Kosraean bible at Bible.com

Linked from YouVersion

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Explore Lostness and Next Steps

Unengaged and Unreached

Strategic Priority Index (SPI): Unengaged and Unreached (SPI: 2), 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): Moderately Reached People Group, (LPI: 5), 6% to 20% Evangelical.
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical (GSEC: 6), this people group is greater than or equal to 10% evangelical

Next steps for the Kusaiean:
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 Kusaiean 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 Kusaiean:
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 Kusaiean 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 Kusaiean:
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 Kusaiean of Nauru

If we say we have no sin, we deceive ourselves, and the truth is not in us. If we confess our sins, he is faithful and just to forgive us our sins and to cleanse us from all unrighteousness.
read1 John 1:9

Pray that God, who is faithful and just, will open the eyes of those who are lost and draw them to confess their sins and trust in Him to grant forgiveness.

The grass withers, the flower fades, but the word of our God will stand forever.
readIsaiah 40:8

Pray that everyone has access to God's Word and that those who hear the good news will turn from their sins and put their faith in Jesus the Messiah.

Know therefore that the Lord your God is God, the faithful God who keeps covenant and steadfast love with those who love him and keep his commandments, to a thousand generations.
readDeuteronomy 7:9

Pray that as people place their faith in Christ, they will know God's faithful love and keep His commandments, experiencing His steadfast care.

He restores my soul. He leads me in paths of righteousness for his name’s sake.
readPsalm 23:3

Pray for believers to go and share the gospel with others here. Ask that God will restore their souls and lead them in paths of righteousness for His name's sake.

Kosraen Across Countries (ROP3 - 105256) 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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