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PEOPLE GROUP PROFILE

The Yaosakor Asmat of Indonesia

The Yaosakor Asmat of Indonesia, numbering approximately 3,000 people, are No Longer Unreached. They are described as an ethnolinguistic community of Indonesia They are an Indigenous people, with Asmat as their ethnic/kinship group and are in the New Guinea people cluster of the Pacific Islander Peoples. Their primary religion is Protestantism. They primarily speak Asmat, Yaosakor.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Indonesia
People Cluster: New Guinea
Primary Language(s): Asmat, Yaosakor (asy)
Primary Religion(s): Protestantism
Population: 3,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG023099
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Pray for the Yaosakor Asmat of Indonesia

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Dig Deeper (Religion):

Primary Religion: Protestantism
Religious Affiliation: Christianity

50%
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Asmat, Yaosakor
Language Family: Nuclear Trans New Guinea

75%
%
Asmat, Yaosakor Speakers

Media Resources in Asmat, Yaosakor:

Films:

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Bible Resources in Asmat, Yaosakor:

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Or check out the Asmat, Yaosakor bible at Bible.com

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Explore Lostness and Next Steps

Unengaged and Unreached

Strategic Priority Index (SPI): Unengaged and Unreached (SPI: 2), 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.
Lostness Priority Index (LPI): Significantly Reached People Group, (LPI: 6), > 20% Evangelical.
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical (GSEC: 6), this people group is greater than or equal to 10% evangelical

Next steps for the Yaosakor Asmat:
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

SPI: Unreached yet Engaged

The Yaosakor Asmat 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 Yaosakor Asmat:
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

SPI: No longer Unreached

The Yaosakor Asmat 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.

Next steps for the Yaosakor Asmat:
Empower local believers to begin praying for their own people
Continue gospel seed sowing and church planting
Encourage local leaders to being leading church planting strategy and looking for Unreached and Unengaged groups nearby

Pray specifically for the Yaosakor Asmat of Indonesia

Listen, my beloved brothers, has not God chosen those who are poor in the world to be rich in faith and heirs of the kingdom, which he has promised to those who love him?
readJames 2:5

Pray for those living in despair to experience the riches of God's love and the hope of eternal life through faith in Christ.

You make known to me the path of life; in your presence there is fullness of joy; at your right hand are pleasures forevermore.
readPsalm 16:11

Pray that God will make a way for His path of life to be revealed to many so that they may come into His presence and experience abundant joy and eternal pleasures at His right hand.

Delight yourself in the Lord, and he will give you the desires of your heart.
readPsalm 37:4

Pray that as people place their faith in Christ, they will delight themselves in the Lord, trusting Him to give them the desires of their hearts.

And the ransomed of the LORD shall return and come to Zion with singing; everlasting joy shall be upon their heads; they shall obtain gladness and joy, and sorrow and sighing shall flee away.
readIsaiah 51:11

Pray that, as God sends people to cross cultures and share the good news of Jesus, many will turn to the Lord in repentance and faith and start a personal relationship with Him that will bring them everlasting joy.

Asmat, Yaosakor Across Countries (ROP3 - 100565) 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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