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Amharic - አማርኛ | Arabic - عربي
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PEOPLE GROUP PROFILE

The Tombulu of Indonesia

The Tombulu of Indonesia, numbering approximately 110,000 people, are No Longer Unreached. They are an ethnolinguistic community of Indonesia. They are an Indigenous people in the Minahasa-Sangir of Sulawesi people cluster of the Malay Peoples affinity bloc. Their primary language is Tombulu and their primary religion is Protestantism.

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

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Minahasa-Sangir of Sulawesi
Primary Language(s): Tombulu (tom)
Primary Religion(s): Protestantism
Population: 110,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022881
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Pray for the Tombulu 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

—
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Tombulu
Language Family: Austronesian

75%
%
Tombulu Speakers

Media Resources in Tombulu:

Films:

Provided by the Jesus Film Project

View all resources

Bible Resources in Tombulu:

Provided by Faith Comes by Hearing

Or check out the Tombulu bible at Bible.com

Linked from YouVersion

View all resources

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): Moderately Reached People Group, (LPI: 5), 6% to 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 Tombulu:
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 Tombulu 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 Tombulu:
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 Tombulu 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 Tombulu:
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 Tombulu of Indonesia

I acknowledged my sin to you, and I did not cover my iniquity; I said, 'I will confess my transgressions to the Lord,' and you forgave the iniquity of my sin.
readPsalm 32:5

Pray those who are lost will realize their sin, confess their iniquity, and grow in their understanding of salvation through faith in Christ alone.

After this he went out and saw a tax collector named Levi, sitting at the tax booth. And he said to him, “Follow me.” And leaving everything, he rose and followed him.
readLuke 5:27-28

Prat that God will prepare many hearts to meet Him when He says, “Follow Me!” and that they will respond in faith, leaving everything behind to follow Him.

Sanctify them in the truth, your word is truth.
readJohn 17:17

Pray that as people place their faith in Christ, they will experience freedom from sin as God sanctifies them in the truth of His Word.

The steps of a man are established by the LORD, when he delights in his way.
readPsalm 37:23

Pray that believers from near and far will serve here and trust in the Lord's timing as He establishes their steps.

Tombulu Menadonese Across Countries (ROP3 - 110147) 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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