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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

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Dig Deeper (Language):

Primary Language: Kosraean
Language Family: Austronesian

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Media Resources in Kosraean:

Films:

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Bible Resources in Kosraean:

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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% or Greater but Less than 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

And he said to them, "This is my blood of the covenant, which is poured out for many."
readMark 14:23-24

Pray for those who may have heard the gospel but have not yet submitted their lives to Christ, that they will finally see the sacrifice which He made for them and surrender their lives to Him.

The heavens declare the glory of God, and the sky above proclaims his handiwork. Day to day pours out speech, and night to night reveals knowledge.
readPsalm 19:1-2

Pray that the lost will see the glory of God revealed in the heavens, that they will hear the good news, and that their hearts will be softened to respond to God’s call, turning to Him in repentance and faith in Jesus Christ for salvation.

For if we go on sinning deliberately after receiving the knowledge of the truth, there no longer remains a sacrifice for sins.
readHebrews 10:26

Pray that as people place their faith in Christ, they will live with reverence for God and not deliberately keep sinning after they receive the knowledge of the truth.

For I am not ashamed of the gospel, for it is the power of God for salvation to everyone who believes, to the Jew first and also to the Greek.
readRomans 1:16

Pray that God will raise up sons and daughters who, like Paul, will be bold to share the gospel across cultural barriers so that many might receive salvation.

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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