Marion County is one of the 36 counties in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its so ...

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 ...

. The population was 345,920 at the 2020 census, making it the 5th most populous county in Oregon. The

county seat A county seat is an administrative center, seat of government, or capital city of a county or parish (administrative division), civil parish. The term is in use in five countries: Canada, China, Hungary, Romania, and the United States. An equiva ...

is Salem, which is also the

state capital Below is an index of pages containing lists of capital city, capital cities. National capitals *List of national capitals *List of national capitals by latitude *List of national capitals by population *List of national capitals by area *List of ...

of Oregon. The county was originally named the Champooick District, after Champoeg (earlier Champooick), a meeting place on the

Willamette River The Willamette River ( ) is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is long, lying entirely in northwestern Oregon in the United States. Flowing northward ...

. On September 3, 1849, the territorial legislature renamed it in honor of

Francis Marion Brigadier general (United States), Brigadier General Francis Marion ( 1732 – February 27, 1795), also known as the "Swamp Fox", was an American military officer, planter, and politician who served during the French and Indian War and t ...

, a

Continental Army The Continental Army was the army of the United Colonies representing the Thirteen Colonies and later the United States during the American Revolutionary War. It was formed on June 14, 1775, by a resolution passed by the Second Continental Co ...

general from

South Carolina South Carolina ( ) is a U.S. state, state in the Southeastern United States, Southeastern region of the United States. It borders North Carolina to the north and northeast, the Atlantic Ocean to the southeast, and Georgia (U.S. state), Georg ...

who served in the

American Revolutionary War The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was the armed conflict that comprised the final eight years of the broader American Revolution, in which Am ...

. Marion County is part of the Salem, OR Metropolitan Statistical Area, which is also included in the Portland-

Vancouver Vancouver is a major city in Western Canada, located in the Lower Mainland region of British Columbia. As the List of cities in British Columbia, most populous city in the province, the 2021 Canadian census recorded 662,248 people in the cit ...

-Salem, OR- WA Combined Statistical Area. It is located in the

Willamette Valley The Willamette Valley ( ) is a valley in Oregon, in the Pacific Northwest region of the United States. The Willamette River flows the entire length of the valley and is surrounded by mountains on three sides: the Cascade Range to the east, the ...

History

Marion County was created by the Provisional Legislature of Oregon on July 5, 1843, as the Champooick District, one of the original four districts of the

Oregon Country Oregon Country was a large region of the Pacific Northwest of North America that was subject to a long Oregon boundary dispute, dispute between the United Kingdom and the United States in the early 19th century. The area, which had been demarcat ...

along with Twality (later Washington), Clackamas, and Yamhill counties. The four districts were redesignated as

counties A county () is a geographic region of a country used for administrative or other purposesL. Brookes (ed.) '' Chambers Dictionary''. Edinburgh: Chambers Harrap Publishers Ltd, 2005. in some nations. The term is derived from the Old French denoti ...

in 1845. Originally, this political entity stretched southward to the

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

border and eastward to the

Rocky Mountains The Rocky Mountains, also known as the Rockies, are a major mountain range and the largest mountain system in North America. The Rocky Mountains stretch in great-circle distance, straight-line distance from the northernmost part of Western Can ...

. With the creation of Wasco, Linn, Polk, and other counties, its area was reduced in size. Marion County's present geographical boundaries were established in 1856. In 1849, Salem was designated the county seat. The territorial capital was moved from Oregon City to Salem in 1852. The ensuing controversy over the location of the capital was settled in 1864 when Salem was confirmed as the state capital.

Geography

According to the

United States Census Bureau The United States Census Bureau, officially the Bureau of the Census, is a principal agency of the Federal statistical system, U.S. federal statistical system, responsible for producing data about the American people and American economy, econ ...

, the county has a total area of , of which is land and (0.9%) is water.

Adjacent counties

* Yamhill County (northwest) * Clackamas County (north) * Wasco County (northeast) * Jefferson County (east) * Linn County (south) * Polk County (west)

National protected areas

* Ankeny National Wildlife Refuge * Mount Hood National Forest (part) *

Willamette National Forest The Willamette National Forest is a United States National Forest, National Forest located in the central portion of the Cascade Range of the U.S. state of Oregon. It comprises . Over 380,000 acres (694 mi2, 1,540 km2) are National Wil ...

(part)

Demographics

2020 census

As of the 2020 census, there were 345,920 people, the racial and ethnic makeup of the county was 61.8% non-Hispanic white, 1.1% African American, 0.9% Native American, 2.1% Asian, 4.9% of two or more races, and 27.7% Hispanic or Latino (of any race).

2010 census

As of the 2010 census, there were 315,335 people, 112,957 households, and 77,044 families living in the county. The population density was . There were 120,948 housing units at an average density of . The racial makeup of the county was 78.2% white, 1.9% Asian, 1.6% American Indian, 1.1% black or African American, 0.7% Pacific islander, 12.6% from other races, and 3.9% from two or more races. Those of Hispanic or Latino origin made up 24.3% of the population. In terms of ancestry, 22.1% were German, 11.4% were English, 11.0% were Irish, and 4.7% were American. Of the 112,957 households, 35.5% had children under the age of 18 living with them, 50.4% were married couples living together, 12.4% had a female householder with no husband present, 31.8% were non-families, and 25.0% of all households were made up of individuals. The average household size was 2.70 and the average family size was 3.23. The median age was 35.1 years. The median income for a household in the county was $46,069 and the median income for a family was $54,661. Males had a median income of $39,239 versus $32,288 for females. The per capita income for the county was $21,915. About 11.7% of families and 16.0% of the population were below the

poverty line The poverty threshold, poverty limit, poverty line, or breadline is the minimum level of income deemed adequate in a particular country. The poverty line is usually calculated by estimating the total cost of one year's worth of necessities for ...

, including 23.8% of those under age 18 and 7.6% of those age 65 or over.

2000 census

As of the 2000 census, there were 284,834 people, 101,641 households, and 70,437 families living in the county. The population density was . There were 108,174 housing units at an average density of . The racial makeup of the county was 81.62%

White White is the lightest color and is achromatic (having no chroma). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully (or almost fully) reflect and scatter all the visible wa ...

, 0.89%

Black Black is a color that results from the absence or complete absorption of visible light. It is an achromatic color, without chroma, like white and grey. It is often used symbolically or figuratively to represent darkness.Eva Heller, ''P ...

African American African Americans, also known as Black Americans and formerly also called Afro-Americans, are an Race and ethnicity in the United States, American racial and ethnic group that consists of Americans who have total or partial ancestry from an ...

, 1.44% Native American, 1.75% Asian, 0.36%

Pacific Islander Pacific Islanders, Pasifika, Pasefika, Pacificans, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe th ...

, 10.58% from other races, and 3.35% from two or more races. 17.10% of the population were

Hispanic The term Hispanic () are people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or broadly. In some contexts, Hispanic and Latino Americans, especially within the United States, "Hispanic" is used as an Ethnici ...

or Latino of any race. 18.4% were of German, 9.2% English, 8.2% American and 7.4% Irish ancestry. 80.8% spoke only English at home, while 14.8% spoke Spanish and 1.4% Russian. There were 101,641 households, out of which 34.50% had children under the age of 18 living with them, 53.70% were

married couples Marriage, also called matrimony or wedlock, is a culturally and often legally recognised union between people called spouses. It establishes rights and obligations between them, as well as between them and their children (if any), and b ...

living together, 11.00% had a female householder with no husband present, and 30.70% were non-families. 24.00% of all households were made up of individuals, and 9.50% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.19. In the county, 27.40% of the population was under the age of 18, 10.30% was from 18 to 24, 28.70% from 25 to 44, 21.20% from 45 to 64, and 12.40% was 65 years of age or older. The median age was 34 years. For every 100 females, there were 101.10 males. For every 100 females age 18 and over, there were 99.50 males. The median income for a household in the county was $40,314, and the median income for a family was $46,202. Males had a median income of $33,841 versus $26,283 for females. The

per capita income Per capita income (PCI) or average income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year. In many countries, per capita income is determined using regular population surveys, such ...

for the county was $18,408. About 9.60% of families and 13.50% of the population were below the

, including 18.10% of those under age 18 and 7.40% of those age 65 or over.

Law and government

Elected officials

Marion County is among the 24 of Oregon's 36 counties that operate under a board of commissioners (BOC) of three members elected countywide to 4-year terms. In Marion County these are partisan races. Commissioners, who are full-time, salaried officials, have executive, legislative, and quasi-judicial powers (the latter in land-use cases). The Board of Commissioners serves as the governing body. The commissioners elect their chair annually; in practice, in Marion County the chair rotates annually. The BOC is responsible for accepting funds from sources outside the county, strategic planning, and enacting ordinances as needed to carry out plans and serve the public. The BOC also prepares a county budget in cooperation with the elected heads of the various departments. The BOC is required by law to appoint a Budget Officer who presents a budget to the Budget Committee composed of the Commissioners and three public members. County commissioners appoint and oversee non-elected department heads, officers, boards, and commissions. In addition to the Board of Commissioners, the county has non-partisan positions that are elected in county-wide elections for four year terms: Assessor, Clerk, Treasurer, District Attorney, and Sheriff. Further, the county elects one Justice of the Peace (Justice Court Judge) to a six year term. These officers are accountable to the voters, rather than to the Board of Commissioners, although they work with the Commissioners in establishing a county budget. All are full-time, paid county officers.

County Commission

Politics

Although Democrats took the presidential vote with pluralities in

1996 1996 was designated as: * International Year for the Eradication of Poverty Events January * January 8 – A Zairean cargo plane crashes into a crowded market in the center of the capital city of the Democratic Republic of the Congo ...

2008 2008 was designated as: *International Year of Languages *International Year of Planet Earth *International Year of the Potato *International Year of Sanitation The Great Recession, a worldwide recession which began in 2007, continued throu ...

, and

2020 The year 2020 was heavily defined by the COVID-19 pandemic, which led to global Social impact of the COVID-19 pandemic, social and Economic impact of the COVID-19 pandemic, economic disruption, mass cancellations and postponements of even ...

, no Democrat has carried a majority of the county since

Lyndon Johnson Lyndon Baines Johnson (; August 27, 1908January 22, 1973), also known as LBJ, was the 36th president of the United States, serving from 1963 to 1969. He became president after assassination of John F. Kennedy, the assassination of John F. Ken ...

1964 Events January * January 1 – The Federation of Rhodesia and Nyasaland is dissolved. * January 5 – In the first meeting between leaders of the Roman Catholic and Orthodox churches since the fifteenth century, Pope Paul VI and Patria ...

. Marion County is one of 13 counties to have voted for

Barack Obama Barack Hussein Obama II (born August 4, 1961) is an American politician who was the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, he was the first African American president in American history. O ...

Mitt Romney Willard Mitt Romney (born March 12, 1947) is an American businessman and retired politician. He served as a United States Senate, United States senator from Utah from 2019 to 2025 and as the 70th governor of Massachusetts from 2003 to 2007 ...

2012 2012 was designated as: *International Year of Cooperatives *International Year of Sustainable Energy for All Events January *January 4 – The Cicada 3301 internet hunt begins. * January 12 – Peaceful protests begin in the R ...

Donald Trump Donald John Trump (born June 14, 1946) is an American politician, media personality, and businessman who is the 47th president of the United States. A member of the Republican Party (United States), Republican Party, he served as the 45 ...

2016 2016 was designated as: * International Year of Pulses by the sixty-eighth session of the United Nations General Assembly. * International Year of Global Understanding (IYGU) by the International Council for Science (ICSU), the Internationa ...

, and

Joe Biden Joseph Robinette Biden Jr. (born November 20, 1942) is an American politician who was the 46th president of the United States from 2021 to 2025. A member of the Democratic Party (United States), Democratic Party, he served as the 47th vice p ...

Economy

Agriculture and food processing are important to the county's economy, as are lumber, manufacturing, and education. Marion County is the leader in agricultural production among all other Oregon counties. Marion County has planted in orchards. The

marionberry The marionberry (''Rubus L.'' subgenus ''Rubus'') is a cultivar of blackberry released in 1956 by the USDA Agricultural Research Service breeding program in cooperation with Oregon State University. It is named after Marion County, Oregon, whe ...

was named after the county. Government, however, is the county's main employer and economic base.

Education

Tertiary education

Marion County is the home of

Willamette University Willamette University is a Private university, private Liberal arts colleges in the United States, liberal arts college with locations in Salem, Oregon, Salem and Portland, Oregon. Founded in 1842, it is the oldest college in the Western United ...

, Corban University, and Chemeketa Community College. All of Marion County is within the Chemeketa community college district.

K-12 schools

Public K-12 school districts include:
Text list
/ref> * Cascade School District 5 * Central School District 13J * Gervais School District 1 * Jefferson School District 14J * Mount Angel School District 91 * North Marion School District 15 * North Santiam School District 29J * Salem-Keizer School District 24J * Santiam Canyon School District 129J * Silver Falls School District 4J * St. Paul School District 45 * Woodburn School District State-operated schools: * Oregon School for the Deaf The Oregon School for the Blind closed in 2009.

Bureau of Indian Education The Bureau of Indian Education (BIE) is a division of the U.S. Department of the Interior under the Assistant Secretary for Indian Affairs that directs and manages education functions. Formerly known as the Office of Indian Education Programs ...

-affiliated tribal school: * Chemawa Indian School

Communities

Cities

* Aumsville *

Aurora An aurora ( aurorae or auroras), also commonly known as the northern lights (aurora borealis) or southern lights (aurora australis), is a natural light display in Earth's sky, predominantly observed in high-latitude regions (around the Arc ...

Detroit Detroit ( , ) is the List of municipalities in Michigan, most populous city in the U.S. state of Michigan. It is situated on the bank of the Detroit River across from Windsor, Ontario. It had a population of 639,111 at the 2020 United State ...

Donald Donald is a Scottish masculine given name. It is derived from the Gaelic name ''Dòmhnall''.. This comes from the Proto-Celtic *''Dumno-ualos'' ("world-ruler" or "world-wielder"). The final -''d'' in ''Donald'' is partly derived from a misinter ...

* Gates (part) * Gervais * Hubbard * Idanha (part) * Jefferson * Keizer * Mill City (part) * Mt. Angel * St. Paul * Salem (county seat) * Scotts Mills * Silverton * Stayton * Sublimity *

Turner Turner may refer to: People and fictional characters * Turner (surname), a common surname, including a list of people and fictional characters with the name * Turner (given name), a list of people with the given name *One who uses a lathe for tur ...

* Woodburn

Census-designated places

* Brooks * Butteville *

Four Corners Four Corners is a region of the Southwestern United States consisting of the southwestern corner of Colorado, southeastern corner of Utah, northeastern corner of Arizona, and northwestern corner of New Mexico. Most of the Four Corners regio ...

* Hayesville * Labish Village * Marion * Mehama

Locales, etc.

* Champoeg *

Saint Benedict Benedict of Nursia (; ; 2 March 480 – 21 March 547), often known as Saint Benedict, was a Great Church, Christian monk. He is famed in the Catholic Church, the Eastern Orthodox Church, the Lutheran Churches, the Anglican Communion, and Old ...

Unincorporated communities

* Breitenbush * Brooks * Butteville * Chemawa * Clear Lake * Hayesville * Macleay * Marion * McKee * Mehama * Middle Grove *

Monitor Monitor or monitor may refer to: Places * Monitor, Alberta * Monitor, Indiana, town in the United States * Monitor, Kentucky * Monitor, Oregon, unincorporated community in the United States * Monitor, Washington * Monitor, Logan County, Wes ...

* Niagara * North Howell * Pratum * Rosedale * Saint Louis * Shaw * Talbot * Waconda * West Stayton