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PEOPLE GROUP PROFILE

The Tontemboa of Indonesia

The Tontemboa of Indonesia, numbering approximately 231,000 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 Tontemboan and their primary religion is Protestantism.

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

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Minahasa-Sangir of Sulawesi
Primary Language(s): Tontemboan (tnt)
Primary Religion(s): Protestantism
Population: 231,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022886
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Pray for the Tontemboa 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.

Pray Now!
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Dig Deeper (Religion):

Primary Religion: Protestantism
Religious Affiliation: Christianity

—
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Tontemboan
Language Family: Austronesian

76%
%
Tontemboan Speakers

Media Resources in Tontemboan:

Films:

Provided by the Jesus Film Project

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Bible Resources in Tontemboan:

Provided by Faith Comes by Hearing

Or check out the Tontemboan 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 Tontemboa:
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 Tontemboa 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 Tontemboa:
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 Tontemboa 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 Tontemboa:
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 Tontemboa of Indonesia

And Mary said, "My soul magnifies the Lord, and my spirit rejoices in God my Savior."
readLuke 1:46-47

Pray that those who are lost will recognize their need for a Savior and joyfully embrace the mercy that God offers.

O LORD, how manifold are your works! In wisdom have you made them all; the earth is full of your creatures.
readPsalm 104:24

Pray that they will see the wisdom and power of God in His creation and praise Him for His mighty works.

For the sake of Christ, then, I am content with weaknesses, insults, hardships, persecutions, and calamities. For when I am weak, then I am strong.
read2 Corinthians 12:10

Pray that as people place their faith in Christ, they will embrace their weaknesses, hardships, and difficulties, having hope because Christ's power is made perfect in their weakness.

Come, bless the LORD, all you servants of the LORD, who stand by night in the house of the LORD!
readPsalm 134:1

Pray that God will raise up believers among them who are in awe of Him and that, in service to Him, they will share the gospel with others so that they too may bless the Lord!

Tontemboa Across Countries (ROP3 - 110162) 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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