Prototype rebuild by the IMB Innovation Team. The official site is peoplegroups.org.

People group profile · PG011217

The San Chay of Vietnam

The San Chay of Vietnam, numbering about 170,000 people, are No Longer Unreached. They are an ethnolinguistic community of Vietnam.

They are an indigenous people in the Tai people cluster of the Southeast Asian Peoples. Their primary religion is Ethnoreligion, and they primarily speak Cao Lan.

Pray for the San ChayPrint profile

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

Fast facts

Country
Vietnam
Population
170,000
Affinity group
Asian Pacific Rim Peoples
People cluster
Tai
Primary language
Cao Lan (mlc)
Primary religion
Ethnoreligion
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
South-Eastern Asia, Asia

Where they live

Gospel status

The San Chay 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 San Chay

  • 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

Ethnoreligion

85% adherents

Primary language

Cao Lan · Tai-Kadai family

100% speak Cao Lan

Gospel resources in Cao Lan

  • Bible available, published 2023
  • JESUS Film available
  • Radio programs not available
  • Gospel recordings not available
  • Audio resources available
  • Bible stories available

Films

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

Pray for the San Chay

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

Download a prayer guide

Know something we don't? Submit updates to IMB Global Research.