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PEOPLE GROUP PROFILE

The Mountain Koiari of Papua New Guinea

The Mountain Koiari of Papua New Guinea, numbering approximately 7,000 people, are No Longer Unreached. They are described as an indigenous ethnic group of Papua New Guinea They are an Indigenous people, with Mountain Koiari as their ethnic/kinship group and are in the New Guinea people cluster of the Pacific Islander Peoples. Their primary religion is Protestantism. They primarily speak Koiali, Mountain.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): Koiali, Mountain (kpx)
Primary Religion(s): Protestantism
Population: 7,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG010252
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Pray for the Mountain Koiari 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: Protestantism
Religious Affiliation: Christianity

42%
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Koiali, Mountain
Language Family: Koiarian

100%
%
Koiali, Mountain Speakers

Media Resources in Koiali, Mountain:

Films:

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Bible Resources in Koiali, Mountain:

Provided by Faith Comes by Hearing

Or check out the Koiali, Mountain 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): Marginally Reached People Group, (LPI: 4), 3% to 6% 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 Mountain Koiari:
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 Mountain Koiari 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 Mountain Koiari:
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 Mountain Koiari 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 Mountain Koiari:
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 Mountain Koiari of Papua New Guinea

For all the gods of the peoples are worthless idols, but the LORD made the heavens.
read1 Chronicles 16:26

Pray that those among them who are lost and seeking after worthless idols will have the opportunity to hear and respond to the good news, seeing that Jesus is better than any idol.

Then the LORD God formed the man of dust from the ground and breathed into his nostrils the breath of life, and the man became a living creature.
readGenesis 2:7

Pray that Christians will be able to share the hope of Christ with suffering people and that He will breathe new life into their souls.

And Jesus came and said to them, "All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you. And behold, I am with you always, to the end of the age."
readMatthew 28:18-20

Pray that as people place their faith in Christ, they will have confidence because Jesus has all authority and is with them as they make disciples and teach others about Him.

But seek the welfare of the city where I have sent you into exile, and pray to the LORD on its behalf, for in its welfare you will find your welfare.
readJeremiah 29:7

Pray that God will lead the lost among them to followers of Jesus who will share the gospel with them so that they may believe and take the message of hope to their families and friends.

Mountain Koiari Across Countries (ROP3 - 106829) 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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