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PEOPLE GROUP PROFILE

The Diodio of Papua New Guinea

The Diodio of Papua New Guinea, numbering approximately 4,200 people, are No Longer Unreached. They are described as an indigenous ethnic group of Papua New Guinea They are an Indigenous people, with Diodio as their ethnic/kinship group and are in the New Guinea people cluster of the Pacific Islander Peoples. Their primary religion is Protestantism. They primarily speak Goodenough, West.

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

Fast Facts:

Affinity Group: Pacific Islander Peoples
Country: Papua New Guinea
People Cluster: New Guinea
Primary Language(s): Goodenough, West (ddi)
Primary Religion(s): Protestantism
Population: 4,200
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG009863
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Pray for the Diodio 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: Protestantism
Religious Affiliation: Christianity

45%
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Goodenough, West
Language Family: Austronesian

100%
%
Goodenough, West Speakers

Media Resources in Goodenough, West:

Films:

No entries found for: Goodenough, West(ddi). Help build some!

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Bible Resources in Goodenough, West:

Provided by Faith Comes by Hearing

Or check out the Goodenough, West 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): Significantly Reached People Group, (LPI: 6), > 20% Evangelical.
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical (GSEC: 6), this people group is greater than or equal to 10% evangelical

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

For at one time you were darkness, but now you are light in the Lord. Walk as children of light.
readEphesians 5:8

Pray that those who are lost will turn from the darkness they are walking in and embrace the light, becoming children of light who bear fruit in every good work.

Crispus, the ruler of the synagogue, believed in the Lord, together with his entire household. And many of the Corinthians hearing Paul believed and were baptized.
readActs 18:8

Pray that rulers and leaders will access the gospel, respond in faith, and be baptized, uniting with Christ and His Church, and influence others to follow Him.

The Lord is my shepherd; I shall not want. He makes me lie down in green pastures.
readPsalm 23:1

Pray that as people place their faith in Christ, they will remember that the Lord is their shepherd, providing for their every need.

And God has appointed in the church first apostles, second prophets, third teachers, then miracles, then gifts of healing, helping, administrating, and various kinds of tongues.
read2 Corinthians 12:28

Ask God to raise up believers who will faithfully proclaim the good news and equip others to do the same.

Diodio Across Countries (ROP3 - 102623) 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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