Download the People Group List (16 languages .csv)

Amharic - አማርኛ | Arabic - عربي
Bengali - বাংলা | Chinese (Simplified) - 中文（简体）
Chinese (Traditional) - 中文（繁體) | French - Français
German - Deutsch | Gujarati - ગુજરાતી
Hindi - हिन्दी | Indonesian - Bahasa Indonesia
Korean - 한국어 | Nepali - नेपाली
Portugese - Português | Russian - Русский
Spanish - Espanol | Tagalong / Filipino
Be sure to use the data import function in your favorite app for working with data.
If you'd like to help improve these translations, Contact Us.

PEOPLE GROUP PROFILE

The Siang of Indonesia

The Siang of Indonesia, numbering approximately 110,000 people, are No Longer Unreached. They are described as an ethnolinguistic community of Indonesia They are an Indigenous people, with Siang as their ethnic/kinship group and are in the Barito of Kalimantan people cluster of the Malay Peoples. Their primary religion is Animism. They primarily speak Siang.

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

Fast Facts*:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Barito of Kalimantan
Primary Language(s): Siang (sya)
Primary Religion(s): Animism
Population: 110,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG022591
View on Joshua Project

Print Profile
Submit Updates

Pray for the Siang of Indonesia

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!
Download Prayer Guide

Dig Deeper (Religion):

Primary Religion: Animism
Religious Affiliation: Ethnoreligion

98%
%
Animism Adherents

Dig Deeper (Language):

Primary Language: Siang
Language Family: Austronesian

100%
%
Siang Speakers

Media Resources in Siang:

Films:

Provided by the Jesus Film Project

View all resources

Bible Resources in Siang:

Provided by Faith Comes by Hearing

Or check out the Siang bible at Bible.com

Linked from YouVersion

View all resources

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): Moderately Reached People Group, (LPI: 5), 6% to 20% Evangelical.
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical (GSEC: 5), this people group is greater than or equal to 5% evangelical

Next steps for the Siang:
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 Siang 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 Siang:
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 Siang 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 Siang:
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 Siang of Indonesia

Note then the kindness and the severity of God: severity toward those who have fallen, but God's kindness to you, provided you continue in his kindness. Otherwise you too will be cut off.
readRomans 11:22

Pray that God will transform those who persist in unbelief and, in His everlasting kindness, graft them into His family.

Ascribe to the LORD the glory due his name; bring an offering, and come into his courts!
readPsalm 96:8

Pray for people here to humbly give God the glory due His name.

But when the goodness and loving kindness of God our Savior appeared, he saved us, not because of works done by us in righteousness, but according to his own mercy, by the washing of regeneration and renewal of the Holy Spirit.
readTitus 3:4-5

Pray that as people place their faith in Christ and might struggle with temptation to trust in their own works, they will remember that it is only because of God's mercy that they have been saved.

For the needy shall not always be forgotten, and the hope of the poor shall not perish forever.
readPsalm 9:18

Pray that God will raise up believers who can help meet emotional and physical needs among this people group. Ask Him to open doors for them and give them the courage to walk into difficult situations and share the hope of the gospel boldly.

Siang Across Countries (ROP3 - 108981) 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.

Scroll to Top