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Amharic - አማርኛ | Arabic - عربي
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Chinese (Traditional) - 中文（繁體) | French - Français
German - Deutsch | Gujarati - ગુજરાતી
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PEOPLE GROUP PROFILE

The Tonsea of Indonesia

The Tonsea of Indonesia, numbering approximately 147,000 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 Tonsea and their primary religion is Protestantism.

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

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Minahasa-Sangir of Sulawesi
Primary Language(s): Tonsea (txs)
Primary Religion(s): Protestantism
Population: 147,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022885
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Pray for the Tonsea 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: Tonsea
Language Family: Austronesian

76%
%
Tonsea Speakers

Media Resources in Tonsea:

Films:

Provided by the Jesus Film Project

View all resources

Bible Resources in Tonsea:

Provided by Faith Comes by Hearing

Or check out the Tonsea 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): 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 Tonsea:
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 Tonsea 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 Tonsea:
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 Tonsea 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 Tonsea:
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 Tonsea of Indonesia

The LORD has heard my plea; the LORD accepts my prayer.
readPsalm 6:9

Pray that lost people will hear the gospel and place their faith in Christ, knowing that He hears their plea and accepts their prayer.

Moses said, "Please show me your glory." And he said, "I will make all my goodness pass before you and will proclaim before you my name 'The LORD.' And I will be gracious to whom I will be gracious, and will show mercy on whom I will show mercy."
readExodus 33:18-19

Pray that many will come to know the glory of God, which is revealed in Jesus Christ, and that they will rejoice in the mercy He offers them.

You keep him in perfect peace whose mind is stayed on you, because he trusts in you.
readIsaiah 26:3

Pray that as people place their faith in Christ, the Lord will keep them in perfect peace as they trust in Him.

Therefore, we are ambassadors for Christ, God making his appeal through us. We implore you on behalf of Christ, be reconciled to God.
read2 Corinthians 5:20

Pray that those God sends to cross cultures will be His ambassadors, faithfully imploring people on Christ's behalf to be reconciled to God through Jesus.

Tonsea Across Countries (ROP3 - 110161) 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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