The Yetfa of Indonesia

The Yetfa of Indonesia, numbering approximately 1,400 people, are No Longer Unreached. They are an ethnolinguistic community of Indonesia. They mostly adhere to Protestantism and Yetfa is their primary language.

Photo by Google. (2026). Image generated by Gemini 3.1 Flash-Lite: Yetfa

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Indonesia
People Cluster: New Guinea
Primary Language(s): Yetfa (yet)
Primary Religion(s): Protestantism
Population: 1,400
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG023107
View on Joshua Project

Pray for the Yetfa of Indonesia

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.

Dig Deeper (Religion):

Primary Religion: Protestantism
Religious Affiliation: Christianity

48%
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Yetfa
Language Family:

100%
%
Yetfa Speakers

Media Resources in Yetfa:

Films:

No film resources are listed for this language.

Bible Resources in Yetfa:

No Bible resources are listed for this language.

Or check out the Yetfa bible at Bible.com

Linked from YouVersion

SPI: No longer Unreached

The Yetfa 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 Yetfa:
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 Yetfa of Indonesia

"For it is easier for a camel to go through the eye of a needle than for a rich person to enter the kingdom of God." Those who heard it said, "Then who can be saved?" But he said "What is impossible with man is possible with God."
readLuke 18:25-27

Pray that the lost who think they have everything they need will recognize their spiritual poverty apart from Jesus and turn to Him in faith.

And when the Gentiles heard this, they began rejoicing and glorifying the word of the Lord, and as many as were appointed to eternal life believed. And the word of the Lord was spreading throughout the whole region.
readActs 13:48-49

Pray that the gospel will spread throughout this whole region and that many will believe and embrace the gift of eternal life through faith in Jesus Christ.

Your word is a lamp to my feet and a light to my path.
readPsalm 119:105

Pray that as people place their faith in Christ, they will meditate daily on the Word of God so that, through it, they might have wisdom for the big and small decisions they face every day.

And Jesus said to them, "Follow me, and I will make you become fishers of men." And immediately they left their nets and followed him.
readMark 1:17-18

Pray that God will raise up believers from this place and/or other cultures nearby to proclaim the gospel to those who desperately need to encounter it.

Yetfa Across Countries (ROP3 - 111045) reported in the following countries:

Strategic Progress Index
All

1 people group

To download a comprehensive people group list in spreadsheet form, visit our Research Data page.

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