The Siau Sangirese of Indonesia

The Siau Sangirese of Indonesia, numbering approximately 82,500 people, are No Longer Unreached. They are an Austronesian island people of Indonesia's Sangihe archipelago, migrating through the Philippines and Sulawesi, first exposed to Christianity in 1568 by missionary Mascarenhas, before Dutch rule in 1677 and later Protestant conversion via the Minahasa. They mostly adhere to Protestantism and Sangir is their primary language.

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

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Minahasa-Sangir of Sulawesi
Primary Language(s): Sangir (sxn)
Primary Religion(s): Protestantism
Population: 82,500
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG022866
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Pray for the Siau Sangirese 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.

Dig Deeper (Religion):

Primary Religion: Protestantism
Religious Affiliation: Christianity

—
%
Protestantism Adherents

Dig Deeper (Language):

Primary Language: Sangir
Language Family: Austronesian

100%
%
Sangir Speakers

Media Resources in Sangir:

Films:
TitleLink
JESUSView Film

1 film

Bible Resources in Sangir:

Bible Name (Translation)VideoAudioText
Today's Sangir Version, 2003✓✓
Today's Siau Version✓
Today's Tagulandang Version✓✓

3 entries

Or check out the Sangir bible at Bible.com

Linked from YouVersion

SPI: No longer Unreached

The Siau Sangirese 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 Siau Sangirese:
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 Siau Sangirese of Indonesia

As it is written: “None is righteous, no, not one; no one understands; no one seeks for God".
readRomans 3:10-11

Pray that God will have mercy on those living in broken relationship with Him, and that He will bring many to surrender and repentance at the throne of grace.

Lead me in your truth and teach me, for you are the God of my salvation; for you I wait all the day long.
readPsalm 25:5

Pray that the gospel will advance and that God will lead people in His truth, bringing many to salvation.

And God is able to make all grace about to you, so that having sufficiency in all things at all times, you may abound in every good work.
read2 Corinthians 9:8

Pray that as people place their faith in Christ, they will see that God provides for their needs and be content in His provision so that they may excel in every good work.

"Whoever believes in me, as the Scripture has said, ‘Out of his heart will flow rivers of living water."
readJohn 7:38

Ask God to raise up believers and sustain them as they cross cultures to share hope with those who need it. Pray that many might come to know Christ and that streams of living water will flow from their hearts so they will never thirst again.

Siau Sangirese Across Countries (ROP3 - 114388) reported in the following countries:

Strategic Progress Index
All

1 people group

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 Data Standards section.

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