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People group profile · PG020266

The Grass Koiari of Papua New Guinea

The Grass Koiari of Papua New Guinea, numbering about 3,800 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. Their primary religion is Protestantism, and they primarily speak Grass Koiari.

Pray for the Grass KoiariPrint profile

AI-generated illustration representing the Grass Koiari people
AI-generated illustration, not a photograph. Photo by Google. (2026). Image generated by Gemini 2.5 Flash: Grass Koiari

Fast facts

Country
Papua New Guinea
Population
3,800
Affinity group
Asian Pacific Rim Peoples
People cluster
New Guinea
Primary language
Grass Koiari (kbk)
Primary religion
Protestantism
Strategic Progress Index ?
No Longer Unreached
Evangelical
5% or Greater but Less than 10%
GSEC ?
5% or Greater but Less than 10% Evangelical
Lostness priority ?
Moderately Reached People Group
Region
Melanesia, Oceania

Where they live

Gospel status

The Grass Koiari are No Longer Unreached, which means 2% or more are evangelical Christians. In GSEC terms, this people group is greater than or equal to 5% evangelical.

  • Congregations exist Yes
  • Church planting in the last two years No Churches Planted

Next steps for the Grass Koiari

  • Pray for the churches among this group to grow in faithfulness and maturity
  • Equip believers to reach the unreached peoples around them
  • Send out laborers from this people to the nations

Primary religion

Protestantism · Christianity

42% adherents

Primary language

Grass Koiari · Koiarian family

65% speak Grass Koiari

Gospel resources in Grass Koiari

  • Bible not available
  • JESUS Film not available
  • Radio programs not available
  • Gospel recordings not available
  • Audio resources not available
  • Bible stories not available

Find more at the JESUS Film Project, Bible.com and Faith Comes by Hearing.

Pray for the Grass Koiari

  1. Romans 10:14–15. Ask God to send messengers, so that people can hear, believe and call on the name of the Lord.
  2. Matthew 9:37–38. Ask the Lord of the harvest to send out laborers into his harvest field.
  3. 2 Timothy 2:2. Pray for faithful local leaders who will teach others, so that the church multiplies.
  4. Ephesians 5:8. Pray that those walking in darkness will turn to the light and live as children of light.

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