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Amharic - አማርኛ | Arabic - عربي
Bengali - বাংলা | Chinese (Simplified) - 中文（简体）
Chinese (Traditional) - 中文（繁體) | French - Français
German - Deutsch | Gujarati - ગુજરાતી
Hindi - हिन्दी | Indonesian - Bahasa Indonesia
Korean - 한국어 | Nepali - नेपाली
Portugese - Português | Russian - Русский
Spanish - Espanol | Tagalong / Filipino
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The Mandailing of Indonesia

The Mandailing of Indonesia, numbering approximately 1,300,000 people, are Engaged yet Unreached. They are a Batak people of southern North Sumatra whose identity developed through close ties with the Mandailing homeland and enduring cultural influences from both Batak and Minangkabau traditions. They mostly adhere to Sunni Islam and Batak Mandailing is their primary language.

Photo by Google. (2026). Image generated by Gemini 3.1 Flash-Lite: Mandailing

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Batak-Nias of Sumatra
Primary Language(s): Batak Mandailing (btm)
Primary Religion(s): Sunni Islam
Population: 1,300,000
Strategic Progress Index (SPI): Engaged yet Unreached
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Recent CP Activity
People Group ID: PG022515
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Pray for the Mandailing 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: Sunni Islam
Religious Affiliation: Islam

95%
%
Sunni Islam Adherents

Dig Deeper (Language):

Primary Language: Batak Mandailing
Language Family: Austronesian

76%
%
Batak Mandailing Speakers

Media Resources in Batak Mandailing:

Films:
TitleLink
JESUSView Film

1 film

Provided by the Jesus Film Project

View all resources

Bible Resources in Batak Mandailing:

No Bible resources are listed for this language.

Provided by Faith Comes by Hearing

Or check out the Batak Mandailing bible at Bible.com

Linked from YouVersion

View all resources

SPI: Unreached yet Engaged

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.

Next steps for the Mandailing:
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

Pray specifically for the Mandailing of Indonesia

For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse.
readRomans 1:20

As God's creation declares His glory, pray that multitudes who don't know Him will see the works of His hands and desire to know more about the Creator.

Praise him for his mighty deeds; praise him according to his excellent greatness!
readPsalm 150:2

Pray for the gospel to advance among those who are living in darkness. Pray that they will come to know Jesus and praise Him for all that He has done.

Remember the wondrous works that he has done, his miracles, and the judgments he uttered.
readPsalm 105:5

Pray that as people place their faith in Christ, they will rejoice as they remember His wonders, miracles, and perfect judgements.

Oh, magnify the LORD with me, and let us exalt his name together!
readPsalm 34:3

Pray that God will raise up believers who will go to those in this people group who do not yet follow Jesus, and that they will invite many to magnify the Lord with them so that His fame will spread to the ends of the earth.

Batak Mandailing Across Countries (ROP3 - 101126) reported in the following countries:

Strategic Progress Index
All

1 people group

PhotoPeople Group IDNameCountryPopulationStrategic Progress IndexLanguage ▼Religion
MandailingPG022515MandailingIndonesia1,300,000Engaged yet UnreachedBatak MandailingSunni Islam

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 Data Standards section.

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