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PEOPLE GROUP PROFILE

The Sialum of Papua New Guinea

The Sialum of Papua New Guinea, numbering approximately 850 people, are No Longer Unreached. They are an indigenous ethnic group of Papua New Guinea. They are an Indigenous people in the New Guinea people cluster of the Pacific Islander Peoples affinity bloc. Their primary language is Sialum and their primary religion is Protestantism.

Photo by Google. (2026). Image generated by Gemini 2.5 Flash: Sialum

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): Sialum (slw)
Primary Religion(s): Protestantism
Population: 850
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical
People Group ID: PG010442
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Pray for the Sialum of Papua New Guinea

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: Protestantism
Religious Affiliation: Christianity

42%
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Sialum
Language Family: Nuclear Trans New Guinea

65%
%
Sialum Speakers

Media Resources in Sialum:

Films:

No entries found for: Sialum(slw). Help build some!

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Bible Resources in Sialum:

Provided by Faith Comes by Hearing

Or check out the Sialum bible at Bible.com

Linked from YouVersion

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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): Marginally Reached People Group, (LPI: 4), 3% to 6% Evangelical.
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical (GSEC: 4), this people group is greater than or equal to 2% evangelical

Next steps for the Sialum:
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 Sialum 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 Sialum:
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 Sialum 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 Sialum:
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 Sialum of Papua New Guinea

And this is the judgment: the light has come into the world, and people loved the darkness rather than the light because their works were evil.
readJohn 3:19

Pray that God will have mercy on those who love the darkness they are walking in and turn from their sin to faith in Christ.

I sought the LORD, and he answered me and delivered me from all my fears.
readPsalm 34:4

Pray for each who becomes a child of God to share the hope of eternity with family and friends.

Therefore, since we are surrounded by so great a cloud of witnesses, let us also lay aside every weight, and sin which clings so closely, and let us run with endurance the race that is set before us, looking to Jesus, the founder and perfecter of our faith, who for the joy that was set before him endured the cross, despising the shame, and is seated at the right hand of the throne of God.
readHebrews 12:1-2

Pray that as people place their faith in Christ, they will remember the testimony of those who went before them, resist sin, and run with perseverance the race set before them, fixing their eyes on Jesus.

"For as I passed along and observed the objects of your worship, I found also an altar with this inscription: ‘To the unknown god.’ What therefore you worship as unknown, this I proclaim to you."
readActs 17:23

Pray that believers God sends to cross cultures will be sensitive to the spiritual needs of the people they serve, and will proclaim the truth of Christ to them in creative ways that they will understand.

Sialum Across Countries (ROP3 - 108977) 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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