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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 described as a Micronesian ethnic group indigenous to the Kosrae Island in the Federated States of Micronesia They are an Diaspora people, with Kosraen as their ethnic/kinship group and are in the Micronesian people cluster of the Pacific Islander Peoples. Their primary religion is Protestantism. They primarily speak Kosraean.

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

But those who desire to be rich fall into temptation, into a snare, into many senseless and harmful desires that plunge people into ruin and destruction.
read1 Timothy 6:9

Pray for those, rich and poor, who have put their trust in worldly things, and ask that they will be honest with themselves, acknowledge their need for God and turn to Him.

Behold, I am doing a new thing; now it springs forth, do you not perceive it? I will make a way in the wilderness and rivers in the desert.
readIsaiah 43:19

Pray that the lost will see the new thing God can do in their lives and trust in His plan and purpose for them.

Hide your face from my sins, and blot out all my iniquities.
readPsalm 51:9

Pray that as people place their faith in Christ, they will have confidence that God has turned His face from their sins and forgiven their iniquities.

For great is the Lord, and greatly to be praised; he is to be feared above all gods.
readPsalm 96:4

Pray that God will raise up believers to declare His glory among the lost, so that they may know that He is great and greatly to be praised, that He is exalted above all gods.

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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