Editing Jefferson County, Oregon (section)

==Demographics==
{{US Census population
|1920= 3211
|1930= 2291
|1940= 2042
|1950= 5536
|1960= 7130
|1970= 8548
|1980= 11599
|1990= 13676
|2000= 19009
|2010= 21720
|2020= 24502
|estyear=2024
|estimate=25536
|estref=<ref name="USCensusEst2024">{{cite web|url=https://www.census.gov/data/tables/time-series/demo/popest/2020s-counties-total.html|title=County Population Totals and Components of Change: 2020-2024|publisher=United States Census Bureau|access-date=May 15, 2025}}</ref>
|align-fn=center
|footnote=U.S. Decennial Census<ref>{{Cite web |title=U.S. Decennial Census |url=https://www.census.gov/programs-surveys/decennial-census.html |access-date=February 26, 2015 |publisher=United States Census Bureau}}</ref><br />1790–1960<ref>{{Cite web |title=Historical Census Browser |url=http://mapserver.lib.virginia.edu |access-date=February 26, 2015 |publisher=University of Virginia Library}}</ref> 1900–1990<ref>{{Cite web |date=March 27, 1995 |editor-last=Forstall |editor-first=Richard L. |title=Population of Counties by Decennial Census: 1900 to 1990 |url=https://www.census.gov/population/cencounts/or190090.txt |access-date=February 26, 2015 |publisher=United States Census Bureau}}</ref><br />1990–2000<ref>{{Cite web |date=April 2, 2001 |title=Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000 |url=https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |url-status=dead |archive-url=https://web.archive.org/web/20150226035610/http://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf |archive-date=February 26, 2015 |access-date=February 26, 2015 |publisher=United States Census Bureau}}</ref> 2010–2020<ref name="QF" />
}}
[[Image:Oregon Population Growth by County.png|thumb|220px|From 2000 to 2007, Jefferson County's population grew by 15.9%, more than twice the national average. It was the third fastest growing county in the state, after neighboring Deschutes and Crook counties.]]

===2010 census===
As of the [[2010 United States census|2010 census]], there were 21,720 people, 7,790 households and 5,646 families living in the county.<ref name="census-dp1">{{Cite web |title=DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data |url=http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US41031 |url-status=dead |archive-url=https://archive.today/20200213015712/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US41031 |archive-date=February 13, 2020 |access-date=February 23, 2016 |publisher=[[United States Census Bureau]]}}</ref> The population density was {{convert|12.2|/sqmi}}. There were 9,815 housing units at an average density of {{convert|5.5|/sqmi}}.<ref name="census-density">{{Cite web |title=Population, Housing Units, Area, and Density: 2010 - County |url=http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY07/0500000US41031 |url-status=dead |archive-url=https://archive.today/20200213184842/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY07/0500000US41031 |archive-date=February 13, 2020 |access-date=February 23, 2016 |publisher=[[United States Census Bureau]]}}</ref> 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.<ref name="census-dp1" /> In terms of ancestry, 15.0% were [[Germans|German]], 9.4% were [[Irish people|Irish]], 8.3% were [[English people|English]], and 4.9% were [[Americans|American]].<ref name="census-dp2">{{Cite web |title=DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates |url=http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US41031 |url-status=dead |archive-url=https://archive.today/20200213011036/http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US41031 |archive-date=February 13, 2020 |access-date=February 23, 2016 |publisher=[[United States Census Bureau]]}}</ref>

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.<ref name="census-dp1" />

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]], including 33.6% of those under age 18 and 6.5% of those age 65 or over.<ref name="census-dp3">{{Cite web |title=DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates |url=http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US41031 |url-status=dead |archive-url=https://archive.today/20200213030524/http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US41031 |archive-date=February 13, 2020 |access-date=February 23, 2016 |publisher=[[United States Census Bureau]]}}</ref>

===2000 census===
As of the [[2000 United States census|2000 census]], there were 19,009 people, 6,727 households and 5,166 families living in the county. The [[population density]] was {{convert|11|/sqmi}}. There were 8,319 housing units at an average density of {{convert|5|/sqmi}}. The racial make-up was 68.98% [[Race (United States Census)|White]], 0.26% [[Race (United States Census)|Black]] or [[Race (United States Census)|African American]], 15.68% [[Race (United States Census)|Native American]], 0.30% [[Race (United States Census)|Asian]], 0.22% [[Race (United States Census)|Pacific Islander]], 11.32% from [[Race (United States Census)|other races]], and 3.23% from two or more races. 17.74% of the population were [[Race (United States Census)|Hispanic]] or [[Race (United States Census)|Latino]] of any race. 13.6% were of [[German people|German]], 9.5% [[English people|English]], 8.7% [[United States|American]] and 5.3% [[Irish people|Irish]] ancestry. 82.2% spoke [[English language|English]], 15.5% [[Spanish language|Spanish]] and 1.0% [[Sahaptian languages|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 [[Marriage|married couples]] 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]] 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]] was $15,675. About 10.40% of families and 14.60% of the population were below the [[poverty line]], including 22.20% of those under age 18 and 5.90% of those age 65 or over.