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PEOPLE GROUP PROFILE

The Rumsen Ohlone of the United States

The Rumsen Ohlone of the United States, numbering approximately 2,000 people, are No Longer Unreached. They are one of eight tribal groups within the Ohlone (Costanoan) people of central California and can also be known as Rumsien, San Carlos Costanoan, Carmeleno, Rumsen Ohlone. They are an Indigenous people, in the North American Indigenous people cluster of the North American Peoples affinity bloc. Their primary religion is Christianity - Folk Catholicism. They primarily speak English.

Photo by Google. (2025). Image generated by Gemini 2.5 Flash: Rumsen

Fast Facts:

Affinity Group: American Peoples
Country: the United States
People Cluster: North American Indigenous
Primary Language(s): English (eng)
Primary Religion(s): Christianity - Folk Catholicism
Population: 2,000
Strategic Progress Index (SPI): No Longer Unreached
Global Status of Evangelical Christianity (GSEC): 5% or Greater but Less than 10% Evangelical
People Group ID: PG050638

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Dig Deeper (Religion):

Primary Religion: Christianity - Folk Catholicism
Religious Affiliation: Christianity

%
Christianity - Folk Catho… Adherents

Dig Deeper (Language):

Primary Language: English
Language Family:

%
English Speakers

Media Resources in English:

Films:

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Bible Resources in English:

Provided by Faith Comes by Hearing

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Next steps for the Rumsen Ohlone

The Rumsen Ohlone are Unengaged and Unreached, 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.

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

Next steps for the Rumsen Ohlone

The Rumsen Ohlone 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.

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

Next steps for the Rumsen Ohlone

The Rumsen Ohlone 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.

Empower local believers to begin praying for their own people
Continue gospel seed sowing and church planting among this group
Encourage local leaders to being leading church planting strategy and looking for Unreached and Unengaged groups nearby

Pray specifically for the Rumsen Ohlone of the United States

He went to him and bound up his wounds, pouring on oil and wine. Then he set him on his own animal and brought him to an inn and took care of him
readLuke 10:34

Pray that the lost among them will experience the kind of compassion Jesus taught His followers to show others, and that they will trust in Him because He is the one who brings healing to the broken and lost.

And many nations shall join themselves to the LORD in that day, and shall be my people. And I will dwell in your midst, and you shall know that the LORD of hosts has sent me to you.
readZechariah 2:11

Pray that many will take refuge in the Lord and be His people who share the good news of salvation in Jesus with others.

Again I say to you, if two of you agree on earth about anything they ask, it will be done for them by my Father in heaven.
readMatthew 18:19

Pray that as people place their faith in Christ, they find other believers to pray with, and that they will trust God to answer their requests according to His will.

But by the grace of God I am what I am, and his grace toward me was not in vain. On the contrary, I worked harder than any of them, though it was not I, but the grace of God that is with me. Whether then it was I or they, so we preach and so you believed.
read1 Corinthians 15:10–11

Pray that God's people will preach the message of Jesus' death and resurrection and that it will spread among the lost through the selfless witness of believers.

Rumsen reported in the following countries (ROP3):

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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