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PEOPLE GROUP PROFILE

The Tulambatu of Indonesia

The Tulambatu of Indonesia, numbering approximately 7,600 people, are No Longer Unreached. They are an indigenous community of Indonesia; a dialect subgroup of Bungku (bkz). They are an Indigenous people in the Bungku-Bajau people cluster of the Malay Peoples affinity bloc. Their primary language is Bungku and their primary religion is Sunni Islam.

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

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Bungku-Bajau
Primary Language(s): Bungku (bkz)
Primary Religion(s): Sunni Islam
Population: 7,600
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical
People Group ID: PG022889

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Pray for the Tulambatu 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: Sunni Islam
Religious Affiliation: Islam

99%
%

Dig Deeper (Language):

Primary Language: Bungku
Language Family: Austronesian

76%
%

Media Resources in Bungku:

Films:

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Provided by the Jesus Film Project

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Bible Resources in Bungku:

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Provided by Faith Comes by Hearing

Or check out the Bungku 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% or Greater but Less than 6% Evangelical.
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical (GSEC: 4), this people group is greater than or equal to 2% evangelical

Next steps for the Tulambatu:
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 Tulambatu 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 Tulambatu:
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 Tulambatu 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 Tulambatu:
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 Tulambatu of Indonesia

"For it is easier for a camel to go through the eye of a needle than for a rich person to enter the kingdom of God." Those who heard it said, "Then who can be saved?" But he said "What is impossible with man is possible with God."
readLuke 18:25-27

Pray that the lost who think they have everything they need will recognize their spiritual poverty apart from Jesus and turn to Him in faith.

If I ascend to heaven, you are there. If I make my bed in Sheol, you are there!
readPsalm 139:8

Pray that the lost will recognize God's presence with them wherever they go, put their faith in Christ, and seek to live in a way that honors and glorifies Him.

And he brought him outside and said, "Look toward heaven, and number the stars, if you are able to number them." Then he said to him, "So shall your offspring be.”
readGenesis 15:5

Pray that as people place their faith in Christ, they will trust God to keep His promises.

But to all who did receive him, who believed in his name, he gave the right to become children of God.
readJohn 1:12

Pray that believers will have the opportunity to clearly share the good news with the lost here, so that all people can be invited to trust in Jesus and become children of God.

Tulambatu Across Countries (ROP3 - 116109) 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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