The Kosorong of Papua New Guinea

The Kosorong of Papua New Guinea, numbering approximately 4,600 people, are No Longer Unreached. They are described as an indigenous ethnic group of Papua New Guinea They are an Indigenous people, with Kosorong as their ethnic/kinship group and are in the New Guinea people cluster of the Pacific Islander Peoples. Their primary religion is Ethnoreligion. They primarily speak Borong.

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
View on Joshua Project

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.

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 film resources are listed for this language.

Bible Resources in Borong:

Bible Name (Translation)VideoAudioText
2002, 2011 The Bible Society of Papua New Guinea✓✓

1 entry

Or check out the Borong bible at Bible.com

Linked from YouVersion

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

For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse.
readRomans 1:20

As God's creation declares His glory, pray that multitudes who don't know Him will see the works of His hands and desire to know more about the Creator.

Oh how I love your law! It is my meditation all the day.
readPsalm 119:97

Pray that the lost will have access to God's Word in their language and treasure it deeply, meditating on God's promises and precepts.

The Lord is my light and my salvation; whom shall I fear? The Lord is the stronghold of my life; of whom shall I be afraid?
readPsalm 27:1

Pray that as people place their faith in Christ, God will strengthen them when they face persecution of any kind for Jesus' name’s sake.

To the Jews I became as a Jew, in order to win Jews. To those under the law I became as one under the law (though not being myself under the law) that I might win those under the law.
read1 Corinthians 9:20

Pray that believers from similar cultures will be compelled by Christ's love to reach people who don't know the gospel, and that those people will receive the good news with joy.

Kosorong Across Countries (ROP3 - 105255) reported in the following countries:

Strategic Progress Index
All

1 people group

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 Data Standards section.

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