Download the People Group List (16 languages .csv)

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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PEOPLE GROUP PROFILE

The Bolongan of Indonesia

The Bolongan of Indonesia, numbering approximately 40,000 people, are No Longer Unreached. They are an ethnolinguistic community of Indonesia They are an Indigenous people, in the Borneo-Kalimantan people cluster of the Malay Peoples affinity bloc. Their primary religion is Christianity - Protestantism. They primarily speak Bulungan.

Photo by Google. (2025). Image generated by Gemini 2.5 Flash: Bolongan

Fast Facts:

Affinity Group: Asian Pacific Rim Peoples
Country: Indonesia
People Cluster: Borneo-Kalimantan
Primary Language(s): Bulungan (blj)
Primary Religion(s): Christianity - Protestantism
Population: 40,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022556
View on Joshua Project

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Pray for the Bolongan of Indonesia

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Dig Deeper (Religion):

Primary Religion: Christianity - Protestantism
Religious Affiliation: Christianity

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Dig Deeper (Language):

Primary Language: Bulungan
Language Family: Austronesian

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Media Resources in Bulungan:

Films:

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Provided by the Jesus Film Project

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Bible Resources in Bulungan:

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Provided by Faith Comes by Hearing

Or check out the Bulungan bible resources at Bible.com

Linked from YouVersion

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Next steps for the Bolongan

The Bolongan 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 Bolongan

The Bolongan 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 Bolongan

The Bolongan 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 Bolongan of Indonesia

Just so, I tell you, there will be more joy in heaven over one sinner who repents than over ninety-nine righteous persons who need no repentance.
readLuke 15:7

Pray that God will convict the lost of their sin, give them an urgency to run to Him for forgiveness, and feel His welcoming arms around them when they turn to Him.

How beautiful upon the mountains are the feet of him who brings good news, who publishes peace, who brings good news of happiness, who publishes salvation, who says to Zion, "Your God reigns."
readIsaiah 52:7

Pray that those who don't know the good news of peace and salvation through Jesus Christ will have an opportunity to receive it. Pray that it will bring hope and healing to their souls.

The LORD lift up his countenance upon you and give you peace.
readNumbers 6:26

Pray that as people place their faith in Christ, they will be blessed with peace in their lives, knowing that God is with them.

You also must help us by prayer, so that many will give thanks on our behalf for the blessing granted us through the prayers of many.
read2 Corinthians 1:11

Pray that many people will join in praying for the spread of the gospel here, and that God will answer these prayers by drawing more people to Himself.

Bolongan (ROP3 - 101575) 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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