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 all the gods of the peoples are worthless idols, but the LORD made the heavens.
readPsalm 96:5

Pray that those who are seeking after worthless idols will not be satisfied until they seek the truth and find it in Christ.

Sing praises to God, sing praises! Sing praises to our King, sing praises!
readPsalm 47:6

Pray that believers will have a heart to invite others to trust in Christ alone so that they might sing praises to His name.

Let us hold fast the confession of our hope without wavering, for he who promised is faithful.
readHebrews 10:23

Pray that as people place their faith in Christ, they will cling tightly to the hope they have in God to faithfully keep His promises.

To that end, keep alert with all perseverance, making supplication for all the saints, and also for me, that words may be given to me in opening my mouth boldly to proclaim the mystery of the gospel.
readEphesians 6:18b-19

Ask God to give believers He sends to the lost of this people group the boldness and clarity to proclaim the mystery of the gospel in a way that people can understand.

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.

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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