The Isaan of Thailand

The Isaan of Thailand, numbering approximately 18,610,000 people, are Engaged yet Unreached. They are an ethnolinguistic group native to Northeastern Thailand. They are primarily ethnic Lao, and their identity reflects a blend of Lao heritage, Thai national integration, and regional distinctiveness. They are an Indigenous people, in the Thai people cluster of the Southeast Asian Peoples affinity bloc. Their primary religion is Buddhism - Theravada. They primarily speak Thai, Northeastern.

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

Fast Facts:

Affinity Group: Asian Pacific Rim Peoples
Country: Thailand
People Cluster: Thai
Primary Language(s): Thai, Northeastern (tts)
Primary Religion(s): Buddhism - Theravada
Population: 18,610,000
Strategic Progress Index (SPI): Engaged yet Unreached
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Active CP Activity
People Group ID: PG010862
View on Joshua Project

Pray for the Isaan of Thailand

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: Buddhism - Theravada
Religious Affiliation: Buddhism

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Dig Deeper (Language):

Primary Language: Thai, Northeastern
Language Family: Tai-Kadai

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Media Resources in Thai, Northeastern:

Films:

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Bible Resources in Thai, Northeastern:

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Or check out the Thai, Northeastern bible resources at Bible.com

Linked from YouVersion

Next steps for the Isaan

The Isaan are Unengaged and Unreached, 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.

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

Next steps for the Isaan

The Isaan 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.

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

Next steps for the Isaan

The Isaan 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.

Empower local believers to begin praying for their own people
Continue gospel seed sowing and church planting among this group
Encourage local leaders to being leading church planting strategy and looking for Unreached and Unengaged groups nearby

Pray specifically for the Isaan of Thailand

During those many days the king of Egypt died, and the people of Israel groaned because of their slavery and cried out for help. Their cry for rescue from slavery came up to God. And God heard their groaning, and God remembered his covenant with Abraham, with Isaac, and with Jacob.
readExodus 2:23-24

As the lost among them labor, groan, and cry out under false religions and sin, pray God will have mercy on them and hear their cries, that He will be their Rescuer from the kingdom of darkness and bring them into the kingdom of light.

Other seeds fell on good soil and produced grain, some a hundredfold, some sixty, some thirty. He who has ears, let him hear.
readMatthew 13:8-9

Pray that they will have open hearts and minds to the Word of God, and that it will take root in their lives and bear fruit for His glory.

The Lord is my light and my salvation; whom shall I fear? The Lord is the stronghold of my life; of whom shall I be afraid?
readPsalm 27:1

Pray that as people place their faith in Christ, God will strengthen them when they face persecution of any kind for Jesus' name’s sake.

For so the Lord has commanded us, saying, “‘I have made you a light for the Gentiles, that you may bring salvation to the ends of the earth.’”
readActs 13:47

Pray that as people come to faith, they will follow the Lord's leading to go to their neighbors and share the treasure they found in Christ.

Thai, Northeastern (ROP3 - 109994) 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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