The Nias of Indonesia

The Nias of Indonesia, numbering approximately 1,190,000 people, are No Longer Unreached. They are a dialect of Nias (nia), a language of Indonesia (Sumatra), off west coast of Sumatra, Nias and Batu islands. They are an Indigenous people in the Batak-Nias of Sumatra people cluster of the Malay Peoples affinity bloc. Their primary language is Nias and their primary religion is Protestantism.

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

Fast Facts:

Affinity Group: Malay Peoples
Country: Indonesia
People Cluster: Batak-Nias of Sumatra
Primary Language(s): Nias (nia)
Primary Religion(s): Protestantism
Population: 1,190,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 10% or Greater Evangelical
People Group ID: PG022523
View on Joshua Project

Pray for the Nias 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: Nias
Language Family: Austronesian

100%
%
Nias Speakers

Media Resources in Nias:

Films:

Bible Resources in Nias:

Or check out the Nias bible at Bible.com

Linked from YouVersion

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

Next steps for the Nias:
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 Nias 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 Nias:
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 Nias 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 Nias:
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 Nias of Indonesia

"...And some fell into good soil and grew and yielded a hundredfold." As he said these things, he called out, "He who has ears to hear, let him hear."
readLuke 8:8

Pray that the seeds of truth will take root in the hearts of those who are far from Jesus and that He will lead them from darkness to light.

So then it depends not on human will or exertion, but on God, who has mercy.
readRomans 9:16

Pray that the merciful God who is at work in people's hearts will advance His gospel among them.

You keep him in perfect peace whose mind is stayed on you, because he trusts in you.
readIsaiah 26:3

Pray that as people place their faith in Christ, the Lord will keep them in perfect peace as they trust in Him.

For the word of God is living and active, sharper than any two-edged sword, piercing to the division of soul and of spirit, of joints and of marrow, and discerning the thoughts and intentions of the heart.
readHebrews 4:12

Pray that God will make His living and active Word available to everyone in this people group so that many will respond to the gospel. Ask Him to provide Jesus-followers to walk with new believers as they grow in Him.

Niassan Across Countries (ROP3 - 107311) 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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