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PEOPLE GROUP PROFILE

The Matumbi of Tanzania

The Matumbi of Tanzania, numbering approximately 372,000 people, are Engaged yet Unreached. They are an ethnolinguistic community of Tanzania. They are an Indigenous people in the Bantu, Central-Tanzania people cluster of the Sub-Saharan African Peoples affinity bloc. Their primary language is Matumbi and their primary religion is Sunni Islam.

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

Fast Facts:

Affinity Group: Sub-Saharan African Peoples
Country: Tanzania
People Cluster: Bantu, Central-Tanzania
Primary Language(s): Matumbi (mgw)
Primary Religion(s): Sunni Islam
Population: 372,000
Strategic Progress Index (SPI): Engaged yet Unreached
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Recent CP Activity
People Group ID: PG014986
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Pray for the Matumbi 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: Sunni Islam
Religious Affiliation: Islam

78%
%
Sunni Islam Adherents

Dig Deeper (Language):

Primary Language: Matumbi
Language Family: Atlantic-Congo

100%
%
Matumbi Speakers

Media Resources in Matumbi:

Films:

Provided by the Jesus Film Project

View all resources

Bible Resources in Matumbi:

Provided by Faith Comes by Hearing

Or check out the Matumbi 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: 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): Frontier Unreached People Group, (LPI: 0), < 0.1% Evangelical.
Global Status of Evangelical Christianity (GSEC): Less than 2% Evangelical, No Recent 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 Matumbi:
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 Matumbi 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 Matumbi:
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 Matumbi 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 Matumbi:
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 Matumbi of Tanzania

And Jesus came and said to them, “All authority in heaven and on earth has been given to me. Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit, teaching them to observe all that I have commanded you. And behold, I am with you always, to the end of the age.”
readMatthew 28:16-20

Pray that those who don't yet know Him will encounter the risen Savior and be transformed by the power of His resurrection, becoming disciples who make disciples.

For from the rising of the sun to its setting my name will be great among the nations, and in every place incense will be offered to my name, and a pure offering. For my name will be great among the nations, says the LORD of hosts.
readMalachi 1:11

Pray that they will worship God in spirit and truth, offering Him the sacrifices of praise and thanksgiving that He desires.

Therefore, if anyone is in Christ, he is a new creation. The old has passed away; behold, the new has come.
read2 Corinthians 5:17

Pray that as people place their faith in Christ, they will understand and experience the truth that in Christ, they are a new creation, and the old has gone and the new has come.

And the King will answer them, "Truly, I say to you, as you did it to one of the least of these my brothers, you did it to me."
readMatthew 25:40

Ask God to raise up and send believers who will serve "the least of these" with compassion and energy because they know that in serving those in need, they are serving Christ.

Matumbi Across Countries (ROP3 - 106409) 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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