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

The Mamboru of Indonesia

The Mamboru of Indonesia, numbering approximately 12,500 people, are No Longer Unreached. They are an ethnolinguistic community of Indonesia. They are an Indigenous people in the Flores-Sumba-Alor people cluster of the Malay Peoples affinity bloc. Their primary language is Mamboru and their primary religion is Animism.

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

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Flores-Sumba-Alor
Primary Language(s): Mamboru (mvd)
Primary Religion(s): Animism
Population: 12,500
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG022763
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Pray for the Mamboru 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: Animism
Religious Affiliation: Ethnoreligion

50%
%

Dig Deeper (Language):

Primary Language: Mamboru
Language Family: Austronesian

100%
%

Media Resources in Mamboru:

Films:

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Provided by the Jesus Film Project

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Bible Resources in Mamboru:

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Provided by Faith Comes by Hearing

Or check out the Mamboru 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): 5% or Greater but Less than 10% Evangelical (GSEC: 5), this people group is greater than or equal to 5% evangelical

Next steps for the Mamboru:
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 Mamboru 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 Mamboru:
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 Mamboru 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 Mamboru:
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 Mamboru of Indonesia

For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth.
readRomans 1:18

Pray that God will have mercy and open the eyes of those who don't know Jesus, so that they can turn to the One who is able to save them from their sins.

“I was ready to be sought by those who did not ask for me; I was ready to be found by those who did not seek me. I said, ‘Here I am, here I am,’ to a nation that was not called by my name."
readIsaiah 65:1

Pray that the lost will be found by God, even when they are not seeking Him. Pray that He will reveal Himself to them in a way they cannot ignore and that they will respond in faith.

And these words that I command you today shall be on your heart. You shall teach them diligently to your children, and shall talk of them when you sit in your house, and when you walk by the way, and when you lie down, and when you rise.
readDeuteronomy 6:6-7

Pray that as people place their faith in Christ, they will hide God's Word in their hearts, let it shape their conversations and daily lives, and pass on their faith to the next generation.

Say among the nations, “The LORD reigns! Yes, the world is established; it shall never be moved; he will judge the peoples with equity.”
readPsalm 96:10

Pray for God to put in the hearts of believers to go to the lost and testify about the Lord who reigns.

Mambora Across Countries (ROP3 - 106198) 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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