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The Sepik Plains of Papua New Guinea

The Sepik Plains of Papua New Guinea, numbering approximately 6,200 people, are No Longer Unreached. They are an indigenous ethnic group of Papua New Guinea. They mostly adhere to Roman Catholicism and Keak is their primary language.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): Keak (keh)
Primary Religion(s): Roman Catholicism
Population: 6,200
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical
People Group ID: PG010435
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Pray for the Sepik Plains 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.

Pray Now!
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Dig Deeper (Religion):

Primary Religion: Roman Catholicism
Religious Affiliation: Christianity

82%
%
Roman Catholicism Adherents

Dig Deeper (Language):

Primary Language: Keak
Language Family: Ndu

65%
%
Mevembet Speakers

Media Resources in Keak:

Films:

No film resources are listed for this language.

Provided by the Jesus Film Project

View all resources

Bible Resources in Keak:

No Bible resources are listed for this language.

Provided by Faith Comes by Hearing

Or check out the Keak bible at Bible.com

Linked from YouVersion

View all resources

SPI: No longer Unreached

The Sepik Plains 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 Sepik Plains:
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 Sepik Plains of Papua New Guinea

For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth.
readRomans 1:18

Pray that God will have mercy and open the eyes of those who don't know Jesus, so that they can turn to the One who is able to save them from their sins.

"O righteous Father, even though the world does not know you, I know you, and these know that you have sent me."
readJohn 17:25

Pray that the lost will come to know the Father and Jesus Christ, whom He has sent, and that they will be filled with His love and grace.

Oh, fear the LORD, you his saints, for those who fear him have no lack!
readPsalm 34:9

Pray that as people place their faith in Christ, they will be grounded in the Word, always trusting in the Lord's provision for their needs.

After this the Lord appointed seventy-two others and sent them on ahead of him, two by two, into every town and place where he himself was about to go.
readLuke 10:1

Ask God to raise up, send out, and sustain Christians who can go together to share the good news of Jesus with those who need it.

Sepik Plains Across Countries (ROP3 - 108853) reported in the following countries:

Strategic Progress Index
All

1 people group

PhotoPeople Group IDNameCountryPopulationStrategic Progress IndexLanguage ▼Religion
Sepik PlainsPG010435Sepik PlainsPapua New Guinea6,200No Longer UnreachedKeakRoman Catholicism

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 Data Standards section.

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