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PEOPLE GROUP PROFILE

The Mendalam Kayan of Indonesia

The Mendalam Kayan of Indonesia, numbering approximately 2,700 people, are No Longer Unreached. They are an ethnolinguistic community of Indonesia. They are an Indigenous people in the Borneo-Kalimantan people cluster of the Malay Peoples affinity bloc. Their primary language is Kayan, Mendalam and their primary religion is Protestantism.

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

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Borneo-Kalimantan
Primary Language(s): Kayan, Mendalam (xkd)
Primary Religion(s): Protestantism
Population: 2,700
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022584
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Pray for the Mendalam Kayan of Indonesia

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

50%
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Kayan, Mendalam
Language Family: Austronesian

76%
%
Kayan, Mendalam Speakers

Media Resources in Kayan, Mendalam:

Films:

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Bible Resources in Kayan, Mendalam:

Provided by Faith Comes by Hearing

Or check out the Kayan, Mendalam 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): Significantly Reached People Group, (LPI: 6), > 20% or Greater 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 Mendalam Kayan:
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 Mendalam Kayan 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 Mendalam Kayan:
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 Mendalam Kayan 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 Mendalam Kayan:
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 Mendalam Kayan of Indonesia

For by grace you have been saved through faith. And this is not your own doing; it is the gift of God, not a result of works, so that no one may boast.
readEphesians 2:8-9

Pray that the lost among them will receive the gift of salvation by grace through faith, not by works, and be created for good works.

He will tend his flock like a shepherd; he will gather the lambs in his arms; he will carry them in his bosom, and gently lead those that are with young.
readIsaiah 40:11

Pray that the lost will come to know the tender care of the Good Shepherd, who gathers the lambs in His arms and carries them close to His heart.

But God, being rich in mercy, because of the great love with which he loved us, even when we were dead in our trespasses, made us alive together with Christ—by grace you have been saved.
readEphesians 2:4-5

Pray that as people place their faith in Christ, they will remember God's mercy and grace and experience joy as they walk in new life with Christ.

And the ransomed of the LORD shall return and come to Zion with singing; everlasting joy shall be upon their heads; they shall obtain gladness and joy, and sorrow and sighing shall flee away.
readIsaiah 51:11

Pray that, as God sends people to cross cultures and share the good news of Jesus, many will turn to the Lord in repentance and faith and start a personal relationship with Him that will bring them everlasting joy.

Kayan, Mendalam Across Countries (ROP3 - 104781) 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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