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People group profile · PG023059

The Tandia of Indonesia

The Tandia of Indonesia, numbering about 700 people, are No Longer Unreached. They are a Papuan ethnolinguistic community of Teluk Wondama, West Papua, Indonesia. They were historically associated with Tandia Village and maintained a distinct local identity before shifting largely to neighboring Wandamen-speaking communities.

They are an indigenous people in the New Guinea people cluster of the Pacific Islander Peoples. Their primary religion is Animism, and they primarily speak Wamesa.

Pray for the TandiaPrint profile

AI-generated illustration representing the Tandia people
AI-generated illustration, not a photograph. Photo by Google. (2026). Image generated by Gemini 3.1 Flash Lite: Tandia

Fast facts

Country
Indonesia
Population
700
Affinity group
Asian Pacific Rim Peoples
People cluster
New Guinea
Primary language
Wamesa (wad)
Primary religion
Animism
Strategic Progress Index ?
No Longer Unreached
Evangelical
10% or Greater but Less than 15%
GSEC ?
10% or Greater Evangelical
Lostness priority ?
Moderately Reached People Group
Region
South-Eastern Asia, Asia
Location
West Papua province: Manokwari, Wasior, Wandamen bay to Bintuni bay east end

Where they live

Gospel status

The Tandia are No Longer Unreached, which means 2% or more are evangelical Christians. In GSEC terms, this people group is greater than or equal to 10% evangelical.

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

Next steps for the Tandia

  • 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

Animism · Ethnoreligion

81% adherents

Primary language

Wamesa · Austronesian family

76% speak Wamesa

Gospel resources in Wamesa

  • Bible available, published 1994
  • JESUS Film available
  • Radio programs not available
  • Gospel recordings available
  • Audio resources available
  • Bible stories not available

Films

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

Pray for the Tandia

  1. Psalm 27:1. Pray that new believers will be strengthened in the face of persecution, with the Lord as their stronghold.
  2. Romans 12:4–5. Pray that believers from many cultures will work together as one body so that the church is built up.
  3. Revelation 7:9. Pray for the day when people from this group stand before the throne with every nation, tribe, people and language.
  4. John 17:3. Pray that many will come to know the only true God, and Jesus Christ whom he has sent.

Download a prayer guide

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