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PEOPLE GROUP PROFILE

The Isanzu of Tanzania

The Isanzu of Tanzania, numbering approximately 93,000 people, are Engaged yet Unreached. They are described as an ethnolinguistic community of Tanzania They are an Indigenous people, with Isanzu as their ethnic/kinship group and are in the Bantu, Central-Tanzania people cluster of the Sub-Saharan African Peoples. Their primary religion is Animism. They primarily speak Isanzu.

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

Fast Facts:

Affinity Group: Sub-Saharan African Peoples
Country: Tanzania
People Cluster: Bantu, Central-Tanzania
Primary Language(s): Isanzu (isn)
Primary Religion(s): Animism
Population: 93,000
Strategic Progress Index (SPI): Engaged yet Unreached
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Active CP Activity
People Group ID: PG014949
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Pray for the Isanzu of Tanzania

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.

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Dig Deeper (Religion):

Primary Religion: Animism
Religious Affiliation: Ethnoreligion

75%
%

Dig Deeper (Language):

Primary Language: Isanzu
Language Family: Atlantic-Congo

58%
%

Media Resources in Isanzu:

Films:

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Provided by the Jesus Film Project

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Bible Resources in Isanzu:

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Provided by Faith Comes by Hearing

Or check out the Isanzu bible at Bible.com

Linked from YouVersion

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Explore Lostness and Next Steps

Unengaged and Unreached

Strategic Priority Index (SPI): Unengaged and Unreached (SPI: 1), 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): Expanding Unreached People Group, (LPI: 2), 0.5% to 2% Evangelical.
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Active CP Activity (GSEC: 1), this people group is less than 2% evangelical, some evangelical resources are available, but there has been no active church planting among them within the past two years

Next steps for the Isanzu:
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 Isanzu 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 Isanzu:
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 Isanzu 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 Isanzu:
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 Isanzu of Tanzania

The Lord is a stronghold for the oppressed, a stronghold in times of trouble. And those who know your name put their trust in you, for you, O Lord, have not forsaken those who seek you.
readPsalm 9:9-10

Pray that God will help those who are oppressed and without hope to hear the good news of Jesus and trust in Him, for He has never forsaken those who seek Him.

Sing to God, sing praises to his name; lift up a song to him who rides through the deserts; his name is the LORD; exult before him!
readPsalm 68:4

Pray that many will come to faith in Christ and share the gospel with others so that His salvation will be known among all nations.

For the sake of Christ, then, I am content with weaknesses, insults, hardships, persecutions, and calamities. For when I am weak, then I am strong.
read2 Corinthians 12:10

Pray that as people place their faith in Christ, they will embrace their weaknesses, hardships, and difficulties, having hope because Christ's power is made perfect in their weakness.

Behold, I am doing a new thing; now it springs forth, do you not perceive it? I will make a way in the wilderness and rivers in the desert.
readIsaiah 43:19

Praise the God who is able to make a way forward, even when it seems impossible. Ask Him to do a new thing among this people group specifically and among the nations, raising up believers to go and share the gospel with individuals and places where it has not flourished before.

Isanzu Across Countries (ROP3 - 104077) 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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