The Arusha Maasai of Tanzania

The Arusha Maasai of Tanzania, numbering approximately 526,000 people, are No Longer Unreached. They are a Maa-speaking agropastoral people who lost their cattle in early nineteenth-century Maasai conflicts and settled the southwestern slopes of Mount Meru in the 1830s, prospering there as farmers distinct from other Maasai communities. They mostly adhere to Animism and Masai is their primary language.

Photo by Google. (2026). Image generated by Gemini 3.1 Flash-Lite: Maasai, Arusha

Fast Facts:

Affinity Group: Sub-Saharan African Peoples
Country: Tanzania
People Cluster: Nilotic
Primary Language(s): Masai (mas)
Primary Religion(s): Animism
Population: 526,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 2% or Greater but Less than 5% Evangelical
People Group ID: PG050320
View on Joshua Project

Pray for the Arusha Maasai 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.

Dig Deeper (Religion):

Primary Religion: Animism
Religious Affiliation: Ethnoreligion

70%
%
Animism Adherents

Dig Deeper (Language):

Primary Language: Masai
Language Family: Nilotic

100%
%
Maasai Speakers

Media Resources in Masai:

Films:
TitleLink
JESUSView Film
MagdalenaView Film

2 films

Bible Resources in Masai:

Bible Name (Translation)VideoAudioText
Biblia Sinyati Version✓✓

1 entry

Or check out the Masai bible at Bible.com

Linked from YouVersion

SPI: No longer Unreached

The Arusha Maasai 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 Arusha Maasai:
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 Arusha Maasai of Tanzania

Be still, and know that I am God. I will be exalted among the nations, I will be exalted in the earth!
readPsalm 46:10

Pray that those who do not yet worship Jesus will be still and know that He is God, that He will be exalted among them and in all the earth.

Behold, you shall call a nation that you do not know, and a nation that did not know you shall run to you, because of the LORD your God, and of the Holy One of Israel, for he has glorified you.
readIsaiah 55:5

Pray that those who do not know God will access the gospel, run to Him, and discover that He is the one their souls have been longing for.

And they devoted themselves to the apostles' teaching and the fellowship, to the breaking of bread and the prayers.
readActs 2:42

Pray that as people place their faith in Christ, they will devote themselves to God's Word, to fellowship with each other, and to prayer.

At the same time, pray also for us, that God may open to us a door for the word, to declare the mystery of Christ...that I may make it clear, which is how I ought to speak.
readColossians 4:3-4

Ask God to open doors for believers to share the gospel and help them communicate it clearly so that more people will understand the mystery of Christ and turn to follow Him.

Maasai, Arusha Across Countries (ROP3 - 100534) 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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