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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% 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

In the same way, let your light shine before others, so that they may see your good works and give glory to your Father who is in heaven.
readMatthew 5:16

Pray that those who are deceived about what brings peace will not settle for any lies they’ve heard about God and will diligently seek Him and be satisfied when they learn the truth about who He is and what He’s done.

For my eyes have seen your salvation that you have prepared in the presence of all peoples.
readLuke 2:30

Pray that the lost will see the salvation of God, and that they will trust in Jesus Christ as their Savior and Lord.

He will swallow up death forever; and the Lord GOD will wipe away tears from all faces, and the reproach of his people he will take away from all the earth, for the LORD has spoken.
readIsaiah 25:8

Pray that as people place their faith in Christ, they will rejoice in the hope of the Lord's coming, when He will swallow up death forever and wipe away their tears.

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.

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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