Jefferson 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 ...
of
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 ...
. At the
2020 census, the population was 24,502.
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
Madras
Chennai, also known as Madras ( its official name until 1996), is the capital and largest city of Tamil Nadu, the southernmost state of India. It is located on the Coromandel Coast of the Bay of Bengal. According to the 2011 Indian ce ...
.
The county is named after
Mount Jefferson, the second tallest mountain in Oregon.
History
Jefferson County was created on December 12, 1914, from a portion of
Crook County. The county owes much of its agricultural prosperity to the railroad, which links
Madras
Chennai, also known as Madras ( its official name until 1996), is the capital and largest city of Tamil Nadu, the southernmost state of India. It is located on the Coromandel Coast of the Bay of Bengal. According to the 2011 Indian ce ...
with the Columbia River, and was completed in 1911, and to the development of irrigation projects in the late 1930s. The railroad was completed despite constant feuds and battles between two lines working on opposite sides of the
Deschutes River.
Madras was incorporated in 1911, and has been the permanent county seat since a general election in 1916. The first (temporary) county seat was Culver, which was selected by a three-man commission appointed by the governor. Due to repeated tie votes over several days (with one vote each cast for Culver, Metolius and Madras). The deadlock was eventually broken by allowing the Metolius Commissioner to post the tie-breaker, by voting for Culver.
Rapid development in adjacent
Deschutes County during the 1990s had farmers in Jefferson County concerned that they might be priced out of their own farmlands, which could be replaced by destination resorts, golf courses and other amenities for recent arrivals.
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 (0.6%) is water.
Adjacent counties
*
Marion County (northwest)
*
Wasco County (north)
*
Wheeler County (east)
*
Crook County (south)
*
Deschutes County (south)
*
Linn County (west)
National protected areas
*
Crooked River National Grassland
*
Deschutes National Forest
The Deschutes National Forest is a United States national forest (NF) located in Central Oregon, in parts of Deschutes, Klamath, Lake, and Jefferson counties. It was established in 1908, with border changes following in 1911 and 1915. The f ...
(part)
*
Mount Hood National Forest
The Mount Hood National Forest is a U.S. National Forest in the U.S. state of Oregon, located east of the city of Portland and the northern Willamette River
The Willamette River ( ) is a major tributary of the Columbia River, accounting fo ...
(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
2010 census
As of the
2010 census, there were 21,720 people, 7,790 households and 5,646 families living in the county.
The population density was . There were 9,815 housing units at an average density of .
The racial make-up was 69.0% white, 16.9% American Indian, 0.6% black or African American, 0.4% Asian, 0.1% Pacific islander, 9.1% from other races, and 3.8% from two or more races. Those of Hispanic or Latino origin made up 19.3% of the population.
In terms of ancestry, 15.0% were
German
German(s) may refer to:
* Germany, the country of the Germans and German things
**Germania (Roman era)
* Germans, citizens of Germany, people of German ancestry, or native speakers of the German language
** For citizenship in Germany, see also Ge ...
, 9.4% were
Irish, 8.3% were
English, and 4.9% were
American.
Of the 7,790 households, 34.0% had children under the age of 18 living with them, 53.6% were married couples living together, 12.6% had a female householder with no husband present, 27.5% were non-families, and 22.2% of all households were made up of individuals. The average household size was 2.68 and the average family size was 3.11. The median age was 39.6 years.
The median household income was $41,425 and the median family income was $48,818. Males had a median income of $37,370 and females $30,047. The per capita income was $20,009. About 13.5% of families and 20.1% 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 33.6% of those under age 18 and 6.5% of those age 65 or over.
2000 census
As of the
2000 census, there were 19,009 people, 6,727 households and 5,166 families living in the county. The
population density
Population density (in agriculture: Standing stock (disambiguation), standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geog ...
was . There were 8,319 housing units at an average density of . The racial make-up was 68.98%
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 ...
, 0.26%
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 ...
or
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 ...
, 15.68%
Native American, 0.30%
Asian, 0.22%
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 ...
, 11.32% from
other races, and 3.23% from two or more races. 17.74% 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. 13.6% were of
German
German(s) may refer to:
* Germany, the country of the Germans and German things
**Germania (Roman era)
* Germans, citizens of Germany, people of German ancestry, or native speakers of the German language
** For citizenship in Germany, see also Ge ...
, 9.5%
English, 8.7%
American and 5.3%
Irish ancestry. 82.2% spoke
English, 15.5%
Spanish
Spanish might refer to:
* Items from or related to Spain:
**Spaniards are a nation and ethnic group indigenous to Spain
**Spanish language, spoken in Spain and many countries in the Americas
**Spanish cuisine
**Spanish history
**Spanish culture
...
and 1.0%
Sahaptian as their first language.
There were 6,727 households, of which 35.60% had children under the age of 18 living with them, 60.50% 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, 10.50% had a female householder with no husband present, and 23.20% were non-families. 18.60% of all households were made up of individuals, and 6.90% had someone living alone who was 65 years of age or older. The average household size was 2.80 and the average family size was 3.16.
29.80% of the population were under the age of 18, 7.70% from 18 to 24, 26.90% from 25 to 44, 23.20% from 45 to 64, and 12.40% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 101.90 males. For every 100 females age 18 and over, there were 100.80 males.
The
median household income
The median income is the income amount that divides a population into two groups, half having an income above that amount, and half having an income below that amount. It may differ from the mean (or average) income. Both of these are ways of und ...
was $35,853 and the median family income was $39,151. Males had a median income of $31,126 and females $22,086s. 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 ...
was $15,675. About 10.40% of families and 14.60% 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 22.20% of those under age 18 and 5.90% of those age 65 or over.
Communities
Cities
*
Culver
*
Madras
Chennai, also known as Madras ( its official name until 1996), is the capital and largest city of Tamil Nadu, the southernmost state of India. It is located on the Coromandel Coast of the Bay of Bengal. According to the 2011 Indian ce ...
(county seat)
*
Metolius
Census-designated places
*
Camp Sherman
*
Crooked River Ranch
*
Warm Springs
Unincorporated communities
*
Ashwood
*
Kilts
*
Gateway
*
Geneva
Geneva ( , ; ) ; ; . is the List of cities in Switzerland, second-most populous city in Switzerland and the most populous in French-speaking Romandy. Situated in the southwest of the country, where the Rhône exits Lake Geneva, it is the ca ...
*
Grandview
*
Grizzly
The grizzly bear (''Ursus arctos horribilis''), also known as the North American brown bear or simply grizzly, is a population or subspecies of the brown bear inhabiting North America.
In addition to the mainland grizzly (''Ursus arctos horr ...
*
Horse Heaven
*
Opal City
*
Willowdale
Politics
Though Jefferson County is located in central Oregon, politically it falls in line with the eastern side of the state. The majority of registered voters who are part of a
political party
A political party is an organization that coordinates candidates to compete in a particular area's elections. It is common for the members of a party to hold similar ideas about politics, and parties may promote specific political ideology, ...
in Jefferson County, as well as most counties in eastern Oregon, are members of the
Republican Party. No Democrat has won the majority of the votes in Jefferson County since
Lyndon B. 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 the assassination of John F. Kennedy, under whom he had served a ...
in 1964; the last Democrat to carry the county in a presidential election was
Bill Clinton
William Jefferson Clinton (né Blythe III; born August 19, 1946) is an American politician and lawyer who was the 42nd president of the United States from 1993 to 2001. A member of the Democratic Party (United States), Democratic Party, ...
in 1992. In the
2008 presidential election, 51.47% of Jefferson County voters voted for Republican
John McCain
John Sidney McCain III (August 29, 1936 – August 25, 2018) was an American statesman and United States Navy, naval officer who represented the Arizona, state of Arizona in United States Congress, Congress for over 35 years, first as ...
, while 43.05% voted for
Democrat 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 ...
and 5.46% of voters either voted for a
Third Party
Third party may refer to:
Business
* Third-party source, a supplier company not owned by the buyer or seller
* Third-party beneficiary, a person who could sue on a contract, despite not being an active party
* Third-party insurance, such as a veh ...
candidate or
wrote in a candidate. These numbers show a small shift towards the Democratic candidate as well as a Third Party candidate when compared to the
2004 presidential election, in which 58.7% of Jefferson Country voters voted for
George W. Bush
George Walker Bush (born July 6, 1946) is an American politician and businessman who was the 43rd president of the United States from 2001 to 2009. A member of the Bush family and the Republican Party (United States), Republican Party, he i ...
, while 40% voted for
John Kerry
John Forbes Kerry (born December 11, 1943) is an American attorney, politician, and diplomat who served as the 68th United States secretary of state from 2013 to 2017 in the Presidency of Barack Obama#Administration, administration of Barac ...
, and 1.3% of voters either voted for a Third Party candidate or a
write-in candidate
A write-in candidate is a candidate whose name does not appear on the ballot but seeks election by asking voters to cast a vote for the candidate by physically writing in the person's name on the ballot. Depending on electoral law it may be poss ...
.
Economy
Agriculture is the predominant source of income in the county, with vegetable, grass and flower seeds, garlic, mint and sugar beets cultivated on some of irrigated land. Jefferson County also has vast rangelands and until 2016 had an industrial base related to forest products. The Warm Springs Forest Products Industry, a multimillion-dollar complex owned by the
Confederated Tribes of Warm Springs — partially located in the northwestern corner of the county — was the single biggest industry. With 300 days of sunshine and a low yearly rainfall, fishing, hunting, camping, boating, water-skiing and rock hunting are major tourist activities.
The major landowners in the county are the
Forest Service, which manages National Forest System Lands the comprise 24% of the lands within the county boundaries, and the Confederated Tribes of Warm Springs-Warm Springs Reservation, which owns and manages 21% of the lands within the county boundaries.
Education
School districts include:
*
Ashwood School District 8
*
Black Butte School District 41
*
Culver School District 4
*
Jefferson County School District 509J
*
Redmond School District 2J
Jefferson County is in the boundary of
Central Oregon Community College.
See also
*
Confederated Tribes of Warm Springs
*
Warm Springs Reservation, Oregon
*
National Register of Historic Places listings in Jefferson County, Oregon
References
{{authority control
1914 establishments in Oregon
Populated places established in 1914