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PEOPLE GROUP PROFILE

The Mandailing of Indonesia

The Mandailing of Indonesia, numbering approximately 1,295,000 people, are Engaged yet Unreached. They are an ethnolinguistic community of Indonesia (Sumatra), north Sumatra and can also be known as Batak Mandailing. They are an Indigenous people, in the Batak-Nias of Sumatra people cluster of the Malay Peoples affinity bloc. Their primary religion is Islam - Sunni. They primarily speak Batak Mandailing.

Photo courtesy of Joshua Project. Photo Source: Copyrighted ©️ 2025 Anonymous Used with permission

Fast Facts:

Affinity Group: Asian Pacific Peoples
Country: Indonesia
People Cluster: Batak-Nias of Sumatra
Primary Language(s): Batak Mandailing (btm)
Primary Religion(s): Islam - Sunni
Population: 1,295,000
Strategic Progress Index (SPI): Engaged yet Unreached
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Active CP Activity
People Group ID: PG022515

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Dig Deeper (Religion):

Primary Religion: Islam - Sunni
Religious Affiliation: Islam

%
Islam - Sunni Adherents

Dig Deeper (Language):

Primary Language: Batak Mandailing
Language Family: Austronesian

%
Batak Mandailing Speakers

Media Resources in Batak Mandailing:

Films:

Provided by the Jesus Film Project

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Bible Resources in Batak Mandailing:

Provided by Faith Comes by Hearing

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Next steps for the Mandailing

The Mandailing are Unengaged and Unreached, 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.

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

Next steps for the Mandailing

The Mandailing 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.

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

Next steps for the Mandailing

The Mandailing 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.

Empower local believers to begin praying for their own people
Continue gospel seed sowing and church planting among this group
Encourage local leaders to being leading church planting strategy and looking for Unreached and Unengaged groups nearby

Pray specifically for the Mandailing of Indonesia

"...And some fell into good soil and grew and yielded a hundredfold." As he said these things, he called out, "He who has ears to hear, let him hear."
readLuke 8:8

Pray that the seeds of truth will take root in the hearts of those who are far from Jesus and that He will lead them from darkness to light.

Worship the LORD in the splendor of holiness; tremble before him, all the earth!
readPsalm 96:9

Pray that many who do not yet know Jesus will come to know Him and worship Him in the splendor of His holiness.

And now, Lord, look upon their threats and grant to your servants to continue to speak your word with all boldness.
readActs 4:29

Pray that as people place their faith in Christ and face rejection by unbelievers in their communities, God will give them discernment, boldness, and encouragement to speak His Word.

The times of ignorance God overlooked, but now he commands all people everywhere to repent.
readActs 17:30

Pray that those God sends to cross cultures will boldly and lovingly declare that God commands all people everywhere to repent.

Batak Mandailing reported in the following countries (ROP3):

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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