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PEOPLE GROUP PROFILE

The Kosorong of Papua New Guinea

The Kosorong of Papua New Guinea, numbering approximately 4,600 people, are No Longer Unreached. They are an indigenous ethnic group of Papua New Guinea. They are an Indigenous people in the New Guinea people cluster of the Pacific Islander Peoples affinity bloc. Their primary language is Borong and their primary religion is Ethnoreligion.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): Borong (ksr)
Primary Religion(s): Ethnoreligion
Population: 4,600
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG010093
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Pray for the Kosorong of Papua New Guinea

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: Ethnoreligion
Religious Affiliation: Ethnoreligion

38%
%
Ethnoreligion Adherents

Dig Deeper (Language):

Primary Language: Borong
Language Family: Nuclear Trans New Guinea

100%
%
Borong Speakers

Media Resources in Borong:

Films:

No entries found for: Borong(ksr). Help build some!

Provided by the Jesus Film Project

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Bible Resources in Borong:

Provided by Faith Comes by Hearing

Or check out the Borong 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): 5% or Greater but Less than 10% Evangelical (GSEC: 5), this people group is greater than or equal to 5% evangelical

Next steps for the Kosorong:
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 Kosorong 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 Kosorong:
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 Kosorong 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 Kosorong:
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 Kosorong of Papua New Guinea

Abraham said, "God will provide for himself the lamb for a burnt offering, my son." So they went both of them together.
readGenesis 22:8

Pray that God will open the ears of those who are lost to understand and believe that only shed blood takes away sin and that, like Abraham, they will believe that God Himself provides the lamb for the burnt offering, who is Jesus the final, perfect sacrifice.

Then Job arose and tore his robe and shaved his head and fell on the ground and worshiped. And he said, ‘Naked I came from my mother’s womb, and naked shall I return. The LORD gave, and the LORD has taken away; blessed be the name of the LORD.’ In all this Job did not sin or charge God with wrong.
readJob 1:20-22

Pray that those who mourn will worship God in the midst of their suffering and loss, recognizing He is the source of all good things and that He is worthy of their praise and trust.

For “everyone who calls on the name of the Lord will be saved.”
readRomans 10:13

Pray that as people place their faith in Christ and sometimes have doubts, God will help them remember and trust the power of Jesus to save them from their sins.

There is nothing outside a person that by going into him can defile him, but the things that come out of a person are what defile him.
readMark 7:15

Pray for Christians to take any opportunity to share the hope of Jesus with lost people here, praying they will be wise like Jesus as they share the truth about what can defile people and what can make them clean.

Kosorong Across Countries (ROP3 - 105255) 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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