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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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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

The grass withers, the flower fades, but the word of our God will stand forever.
readIsaiah 40:8

Pray that those who don't know Jesus will be freed from the emptiness of fading hopes and find lasting life and truth in the unchanging Word of God.

For my eyes have seen your salvation that you have prepared in the presence of all peoples.
readLuke 2:30

Pray that the lost will see the salvation of God, and that they will trust in Jesus Christ as their Savior and Lord.

You shall love the LORD your God with all your heart and with all your soul and with all your might.
readDeuteronomy 6:5

Pray that as people place their faith in Christ, they will love the Lord their God with all their heart, soul, and might, as they strive to live lives that honor and glorify Him.

Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you. And behold, I am with you always, to the end of the age.”
readMatthew 28:19-20

Ask God to bring people among this group to faith in Jesus who will be obedient to make disciples of all nations, baptizing them and teaching them to obey all that Christ has commanded.

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

Strategic Progress Index
All

1 people group

PhotoPeople Group ID ▼NameCountryPopulationStrategic Progress IndexLanguageReligion
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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