The Batak Karo of Indonesia

The Batak Karo of Indonesia, numbering approximately 917,000 people, are No Longer Unreached. They are an ethnolinguistic community of Indonesia (Sumatra), central and north, west and northwest of Lake Toba They are an Indigenous people, in the Batak-Nias of Sumatra people cluster of the Malay Peoples affinity bloc. Their primary religion is Christianity - Protestantism. They primarily speak Batak Karo.

Batak Karo in Indonesia photo
Photo courtesy of Joshua Project. Photo Source: Copyrighted ©️ 2025 Kerry Olson Used with permission

Fast Facts:

Affinity Group: Asian Pacific Rim Peoples
Country: Indonesia
People Cluster: Batak-Nias of Sumatra
Primary Language(s): Batak Karo (btx)
Primary Religion(s): Christianity - Protestantism
Population: 917,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical
People Group ID: PG022484
View on Joshua Project

Pray for the Batak Karo 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.

Dig Deeper (Religion):

Primary Religion: Christianity - Protestantism
Religious Affiliation: Christianity

%
Christianity - Protestant… Adherents

Dig Deeper (Language):

Primary Language: Batak Karo
Language Family: Austronesian

%
Batak Karo Speakers

Media Resources in Batak Karo:

Films:

Bible Resources in Batak Karo:

Or check out the Batak Karo bible resources at Bible.com

Linked from YouVersion

Next steps for the Batak Karo

The Batak Karo 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 Batak Karo

The Batak Karo 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 Batak Karo

The Batak Karo 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 Batak Karo of Indonesia

For we ourselves were once foolish, disobedient, led astray, slaves to various passions and pleasures, passing our days in malice and envy, hated by others and hating one another.
readTitus 3:3

Pray for those who seek worldly pleasures instead of God to flee from sin and choose God’s goodness and lovingkindness by placing their faith in Jesus.

The God who made the world and everything in it, being Lord of heaven and earth, does not live in temples made by man, nor is he served by human hands, as though he needed anything, since he himself gives to all mankind life and breath and everything.
readActs 17:24-25

Pray that the good news will reach everyone in this people group and that many will come to know and serve the one true God who made the world and everything in it and lives today.

The Lord is my shepherd; I shall not want. He makes me lie down in green pastures.
readPsalm 23:1

Pray that as people place their faith in Christ, they will remember that the Lord is their shepherd, providing for their every need.

Oh give thanks to the LORD; call upon his name; make known his deeds among the peoples!
readPsalm 105:1

Pray that many among them will call on the name of Jesus, develop a heart for the nations, and go to places where the gospel has not yet been received.

Batak Karo (ROP3 - 114801) reported in the following countries:

To download a comprehensive people group list in spreadsheet form, visit our Research Data page.

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