Religion in the state of Oregon is remarkable in the

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

, with its population ranking among the highest of religiously unaffiliated adults in the entire nation. According to a 2014 report by the

Pew Research Center The Pew Research Center (also simply known as Pew) is a nonpartisan American think tank based in Washington, D.C. It provides information on social issues, public opinion, and demographic trends shaping the United States and the world. It ...

, 31% of Oregon's population was religiously unaffiliated, making it the second-highest percentage after that of

Vermont Vermont () is a U.S. state, state in the New England region of the Northeastern United States. It borders Massachusetts to the south, New Hampshire to the east, New York (state), New York to the west, and the Provinces and territories of Ca ...

. Of the Oregon residents identifying as religiously-affiliated, the largest denomination is

Roman Catholicism The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...

, which makes up approximately 14% of the state's overall population.

History

In 1836, French Canadian pioneers on the French Prairie in the Willamette Valley built a log cabin chapel along the Willamette River.Chapman, J. S. (1993). ''French prairie ceramics: the Harriet D. Munnick archaeological collection, circa 1820-1860 : a catalog and Northwest comparative guide''. Anthropology northwest, no. 8. Corvallis, Or: Dept. of Anthropology, Oregon State University. The first

Protestant Protestantism is a branch of Christianity that emphasizes Justification (theology), justification of sinners Sola fide, through faith alone, the teaching that Salvation in Christianity, salvation comes by unmerited Grace in Christianity, divin ...

church in

Oregon Oregon ( , ) is a U.S. state, state in the Pacific Northwest region of the United States. It is a part of the Western U.S., with the Columbia River delineating much of Oregon's northern boundary with Washington (state), Washington, while t ...

was built in Oregon City starting in 1842. Completed in 1844, this

Methodist Methodism, also called the Methodist movement, is a Protestant Christianity, Christian Christian tradition, tradition whose origins, doctrine and practice derive from the life and teachings of John Wesley. George Whitefield and John's brother ...

church was also the first Protestant church on the continental West Coast of what became the United States. The first

Roman Catholic The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...

official presence in Oregon was the

apostolic vicariate An apostolic vicariate is a territorial jurisdiction of the Catholic Church under a titular bishop centered in missionary regions and countries where dioceses or parishes have not yet been established. The status of apostolic vicariate is often ...

for the

Oregon Territory The Territory of Oregon was an organized incorporated territory of the United States that existed from August 14, 1848, until February 14, 1859, when the southwestern portion of the territory was admitted to the United States, Union as the Oreg ...

begun in 1843. By 1846, the archdiocese of Oregon was formally established. Informally considered part of the Unchurched Belt, Oregon is known for historically having a lack of religiosity compared to other U.S. states.

Current statistics

Denominations

St Marys Cathedral of the Immaculate Conception - Portland Oregon

Similar to many northern U.S. states, Oregon's largest religious group (among Christians and in general), based on a 2008

survey, was

Roman Catholics The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...

, making up 14% of the state's total population. All denominations of Protestant accounted for 30%,

Church of Jesus Christ of Latter-Day Saints The Church of Jesus Christ of Latter-day Saints, informally known as the LDS Church or Mormon Church, is a nontrinitarian restorationist Christian denomination and the largest denomination in the Latter Day Saint movement. Founded durin ...

for 5%,

Buddhists Buddhism, also known as Buddhadharma and Dharmavinaya, is an Indian religion and philosophical tradition based on teachings attributed to the Buddha, a wandering teacher who lived in the 6th or 5th century BCE. It is the world's fourth ...

for 2%, and unaffiliated for 27%, all higher than the national average. A 2009 Gallup poll found that 69% Oregonians identified with a Christian religion. Oregon was lower than the national average in people who identify as mainline Protestants, historically black Christians, Catholics, Orthodox Christians,

Jehovah's Witnesses Jehovah's Witnesses is a Christian denomination that is an outgrowth of the Bible Student movement founded by Charles Taze Russell in the nineteenth century. The denomination is nontrinitarian, millenarian, and restorationist. Russell co-fou ...

Jews Jews (, , ), or the Jewish people, are an ethnoreligious group and nation, originating from the Israelites of History of ancient Israel and Judah, ancient Israel and Judah. They also traditionally adhere to Judaism. Jewish ethnicity, rel ...

and

Muslims Muslims () are people who adhere to Islam, a Monotheism, monotheistic religion belonging to the Abrahamic religions, Abrahamic tradition. They consider the Quran, the foundational religious text of Islam, to be the verbatim word of the God ...

. Oregon tracks the national average in its number of

Hindus Hindus (; ; also known as Sanātanīs) are people who religiously adhere to Hinduism, also known by its endonym Sanātana Dharma. Jeffery D. Long (2007), A Vision for Hinduism, IB Tauris, , pp. 35–37 Historically, the term has also be ...

. The largest denominations by number of adherents in 2000 were the

Roman Catholic Church The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...

with 348,239;

The Church of Jesus Christ of Latter-day Saints The Church of Jesus Christ of Latter-day Saints, informally known as the LDS Church or Mormon Church, is a Nontrinitarianism, nontrinitarian Restorationism, restorationist Christianity, Christian Christian denomination, denomination and the ...

with 104,312; and the

Assemblies of God The World Assemblies of God Fellowship (WAGF), commonly known as the Assemblies of God (AG), is a global cooperative body or communion of over 170 Pentecostal denominations that was established on August 15, 1989. The WAGF was created to provi ...

with 49,357. While Oregon has higher than average rates of evangelical Christianity and Latter-Day Saints compared to mainline or orthodox sects of Christianity, Judaism and Islam, it does have a slightly higher percentage of Buddhists regardless of sect, and is part of overall growth in Buddhists not of ethnically Asian origin in the West. Oregon also contains the largest community of Russian

Old Believers Old Believers or Old Ritualists ( Russian: староверы, ''starovery'' or старообрядцы, ''staroobryadtsy'') is the common term for several religious groups, which maintain the old liturgical and ritual practices of the Russian ...

to be found in the United States (nearly 10,000 as of 2002), due to a relatively large immigrant population from areas where the church originated.

Lack of religiosity

A 2003 study, released once every 10 years, listed Benton County, Oregon as the least religious county per capita in the United States. Only 1 in 4 people indicated that they were affiliated with one of the 149 religious groups the study identified. The study indicated that some of the disparity, however, may be attributed to the popularity of less traditional religions (ones not included as an option in the study) in the

Pacific Northwest The Pacific Northwest (PNW; ) is a geographic region in Western North America bounded by its coastal waters of the Pacific Ocean to the west and, loosely, by the Rocky Mountains to the east. Though no official boundary exists, the most common ...

. In a 2009 Gallup poll, Oregon ranked #1 of US states with the highest percentage of residents who were unaffiliated with any religion, at 24.6%. Although 46% of Oregonians identify religion as being "very important", a full 40% of Oregonians (including those affiliated with a religion) seldom or never attend services. In a different 2009 Gallup poll, Oregon was ranked as the seventh least religious state. In response to the question, "Is religion an important part of your life?", 53% of Oregonians responded "yes". The most religious state was Mississippi, with 85%, and the least religious state was Vermont, with 42%. The states less religious than Oregon, in order, are Washington, Alaska, Massachusetts, Maine, New Hampshire, and Vermont. In a 2006 Gallup poll, Oregonians tied for seventh state with the lowest

church attendance Church attendance is a central religious practice for many Christians; some Christian denominations require church attendance on the Lord's Day (Sunday). The Catholic Church teaches that on Sundays and other holy days of obligation, the faithf ...

, at 32%, along with California and Washington. Church attendance ranged from 58% to 24% in the poll. According to a 2017 study from the

Public Religion Research Institute The Public Religion Research Institute (PRRI) is an American nonprofit, nonpartisan research and education organization that conducts public opinion polls on a variety of topics, specializing in the quantitative and qualitative study of politic ...

, the percentage of unaffiliated individuals was 36% (second-highest to Vermont, which was reported as 41% religiously-unaffiliated).

Notes

References