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

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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:

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Bible Resources in Sialum:

Or check out the Sialum bible at Bible.com

Linked from YouVersion

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

There is therefore now no condemnation for those who are in Christ Jesus.
readRomans 8:1

Pray that God will reassure those who may be struggling with the cost of following Jesus that there is no condemnation for those who are in Christ Jesus.

For there is one God, and there is one mediator between God and men, the man Christ Jesus, who gave himself as a ransom for all, which is the testimony given at the proper time.
read1 Timothy 2:5-6

Pray for the truth about Jesus Christ to spread among the lost so that many will accept His ransom for their sin and experience freedom in a relationship with Him.

For the sake of Christ, then, I am content with weaknesses, insults, hardships, persecutions, and calamities. For when I am weak, then I am strong.
read2 Corinthians 12:10

Pray that as people place their faith in Christ, they will embrace their weaknesses, hardships, and difficulties, having hope because Christ's power is made perfect in their weakness.

In him you also, when you heard the word of truth, the gospel of your salvation, and believed in him, were sealed with the promised Holy Spirit, who is the guarantee of our inheritance until we acquire possession of it, to the praise of his glory.
readEphesians 1:13-14

Pray that God will work through believers near and far in bringing the lost to Himself, giving them what they need to do the task He has set before them, and helping them rest in Him because He has given them His Spirit.

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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