Editing Jefferson County, Washington

{{Short description|County in Washington, United States}}
{{Use mdy dates|date=April 2024}}
{{Infobox U.S. county
 | county               = Jefferson County
 | state                = Washington
 | seal                 = 
 | flag                 = 
 | founded year         = 1852
 | founded date         = December 22
 | seat wl              = Port Townsend
 | largest city wl      = Port Townsend
 | area_total_sq_mi     = 2183
 | area_land_sq_mi      = 1804
 | area_water_sq_mi     = 379
 | area percentage      = 17%
 | population_as_of     = 2020
 | population_total     = 32977
 | pop_est_as_of        = 2024
 | population_est       = 33944 {{increase}}
 | density_sq_mi        = 17
 | time zone            = Pacific
 | website              = {{URL|https://www.co.jefferson.wa.us/|co.jefferson.wa.us}}
 | named for            = [[Thomas Jefferson]]
 | ex image             = Jefferson County Courthouse in Port Townsend, WA.jpg
 | ex image cap         = Jefferson County Courthouse in Port Townsend
 | district             = 6th
}}

'''Jefferson County''' is a [[County (United States)|county]] located in the [[U.S. state]] of [[Washington (state)|Washington]]. As of the [[2020 United States census|2020 census]], the population was 32,977.<ref name="QF">{{Cite web |title=State & County QuickFacts |url=https://www.census.gov/quickfacts/fact/table/jeffersoncountywashington/PST045223 |access-date=November 10, 2024 |publisher=United States Census Bureau}}</ref> The [[county seat]] and only incorporated city is [[Port Townsend, Washington|Port Townsend]].<ref name="GR6">{{Cite web |title=Find a County |url=http://www.naco.org/Counties/Pages/FindACounty.aspx |url-status=dead |archive-url=https://web.archive.org/web/20110531210815/http://www.naco.org/Counties/Pages/FindACounty.aspx |archive-date=May 31, 2011 |access-date=June 7, 2011 |publisher=National Association of Counties}}</ref> The county is named for [[Thomas Jefferson]].<ref>{{Cite book |last=Gannett, Henry |url=https://archive.org/details/bub_gb_9V1IAAAAMAAJ |title=The Origin of Certain Place Names in the United States |publisher=Govt. Print. Off. |year=1905 |pages=[https://archive.org/details/bub_gb_9V1IAAAAMAAJ/page/n167 168]}}</ref>

Jefferson County was formed out of [[Thurston County, Washington|Thurston County]] on December 22, 1852, by the legislature of [[Oregon Territory]],<ref name="reinartz">{{Cite web |last=Reinartz |first=Kay |title=History of King County Government 1853–2002 |url=http://www.metrokc.gov/kc150/historical%20overview.pdf |url-status=dead |archive-url=https://web.archive.org/web/20090325074033/http://www.metrokc.gov/kc150/historical%20overview.pdf |archive-date=March 25, 2009 |access-date=December 28, 2007 |page=2}}</ref> and included the northern {{convert|4854|sqmi|1|adj=on}} portion of the [[Olympic Peninsula]]. On April 26, 1854, the legislature of [[Washington Territory]] created [[Clallam County, Washington|Clallam County]] from the northwestern {{convert|2670|sqmi|1|adj=on}} portion of this original area.

The [[Hood Canal Bridge]] connects Jefferson County to [[Kitsap County, Washington]]. The Coupeville-[[Port Townsend, Washington|Port Townsend]] route of the [[Washington State Ferries]] connects the county to [[Whidbey Island]] in [[Island County, Washington]].

==Geography==
[[File:Cedar Creek Abbey Island Ruby Beach.jpg|thumb|Ruby Beach, Kalaloch Area]]

According to the [[United States Census Bureau]], the county has a total area of {{convert|2183|sqmi}}, of which {{convert|1804|sqmi}} is land and {{convert|379|sqmi}} (17%) is water.<ref name="GR1">{{Cite web |date=August 22, 2012 |title=2010 Census Gazetteer Files |url=http://www2.census.gov/geo/docs/maps-data/data/gazetteer/counties_list_53.txt |access-date=July 5, 2015 |publisher=United States Census Bureau}}</ref>

The county is split in three parts by its landforms:
* Eastern Jefferson County along the [[Strait of Juan de Fuca]], [[Admiralty Inlet]], [[Puget Sound]], and the [[Hood Canal]]
* Central Jefferson County, which is uninhabited and lies in the [[Olympic Mountains]] within [[Olympic National Park]] and [[Olympic National Forest]]
* Western Jefferson County, along the [[Pacific Ocean]].

Because of the [[Olympic Mountains|mountainous barrier]], there is no road lying entirely within Jefferson County that connects the eastern and western parts. The most direct land route between the two ends of the county involves a drive of approximately {{convert|100|mi|km}} along [[U.S. Route 101]] through neighbouring [[Clallam County, Washington|Clallam County]]. The [[Olympic Mountains|mountains]] also block the damp [[Chinook wind]]s, which make the climate much wetter in the west than the so-called eastern "[[banana belt]]" in the [[rain shadow]].

===Geographic features===
[[File:Hoh river in spring.jpg|thumb|Hoh River in the [[Olympic National Park]]]]

{{div col|colwidth=22em}}
*[[Admiralty Inlet]]
*[[Bolton Peninsula]]
*[[Destruction Island]]
*[[Discovery Bay, Washington|Discovery Bay]]
*[[Hood Canal]]
*[[Mount Olympus (Washington)|Mount Olympus]], the highest point on the Olympic Peninsula
*[[Olympic Mountains]]
*[[Olympic Peninsula]]
*[[Pacific Ocean]]
*[[Point Wilson]]
*[[Port Townsend Bay]]
*[[Protection Island (Washington)|Protection Island]]
*[[Puget Sound]]
*[[Queets River]]
*[[Quimper Peninsula]]
*[[Strait of Juan de Fuca]]
*[[Toandos (Coyle) Peninsula]]
{{div col end}}

===Major highways===
*[[Image:US 101.svg|x20px]] [[U.S. Route 101 in Washington|U.S. Route 101]]
*[[Image:WA-20.svg|20px]] [[Washington State Route 20|State Route 20]]
*[[Image:WA-104.svg|20px]] [[Washington State Route 104|State Route 104]]

===Adjacent counties===
*[[Island County, Washington|Island County]] – northeast
*[[Kitsap County, Washington|Kitsap County]] – southeast
*[[Mason County, Washington|Mason County]] – south/southeast
*[[Grays Harbor County, Washington|Grays Harbor County]] – south/southwest
*[[Clallam County, Washington|Clallam County]] – northwest
*[[San Juan County, Washington|San Juan County]] – northeast

===National protected areas===
* [[Olympic National Forest]] (part)
* [[Olympic National Park]] (part)
* [[Protection Island National Wildlife Refuge]]
* [[Quillayute Needles National Wildlife Refuge]] (part)
* [[Pacific Northwest National Scenic Trail]] (part)

==Demographics==
{{US Census population
|1860= 531
|1870= 1268
|1880= 1712
|1890= 8368
|1900= 5712
|1910= 8337
|1920= 6557
|1930= 8346
|1940= 8918
|1950= 11618
|1960= 9639
|1970= 10661
|1980= 15965
|1990= 20146
|2000= 25953
|2010= 29872
|2020= 32977
|estyear=2024
|estimate=33944
|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 17, 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=January 7, 2014 |publisher=United States Census Bureau}}</ref><br />1790–1960<ref>{{Cite web |title=Historical Census Browser |url=http://mapserver.lib.virginia.edu |access-date=January 7, 2014 |publisher=University of Virginia Library}}</ref> 1900–1990<ref>{{Cite web |title=Population of Counties by Decennial Census: 1900 to 1990 |url=https://www.census.gov/population/cencounts/wa190090.txt |access-date=January 7, 2014 |publisher=United States Census Bureau}}</ref><br />1990–2000<ref>{{Cite web |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=January 7, 2014 |publisher=United States Census Bureau}}</ref> 2010–2020<ref name="QF" />}}

Jefferson County also comprises the entirety of the Port Townsend [[micropolitan statistical area]], which is designated by the [[United States Census Bureau|U.S. Census Bureau]]. {{As of|2023}}, the county's median age of 60.8&nbsp;years old is the second-highest among metropolitan and micropolitan areas in the country, behind [[The Villages, Florida]].<ref>{{cite news |last=Balk |first=Gene |date=July 3, 2024 |title=Declining number of kids in nearly all areas of WA |url=https://www.seattletimes.com/seattle-news/data/declining-number-of-kids-in-nearly-all-areas-of-wa/ |work=The Seattle Times |accessdate=October 29, 2024}}</ref>

===2010 census===
As of the [[2010 United States census|2010 census]], there were 29,872 people, 14,049 households, and 8,394 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/DPDP1/0500000US53031 |url-status=dead |archive-url=https://archive.today/20200213030543/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US53031 |archive-date=February 13, 2020 |access-date=March 6, 2016 |publisher=[[United States Census Bureau]]}}</ref> The population density was {{convert|16.6|PD/sqmi}}. There were 17,767 housing units at an average density of {{convert|9.9|/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.CY07/0500000US53031 |url-status=dead |archive-url=https://archive.today/20200213162511/http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY07/0500000US53031 |archive-date=February 13, 2020 |access-date=March 6, 2016 |publisher=[[United States Census Bureau]]}}</ref> The racial makeup of the county was 91.0% white, 2.3% American Indian, 1.6% Asian, 0.8% black or African American, 0.2% Pacific islander, 0.7% from other races, and 3.4% from two or more races. Those of Hispanic or Latino origin made up 2.8% of the population.<ref name="census-dp1" /> In terms of ancestry, 20.8% were [[English people|English]], 20.3% were [[Germans|German]], 13.9% were [[Irish people|Irish]], 8.3% were [[Norwegians|Norwegian]], 5.9% were [[Scottish people|Scottish]], and 4.2% 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/DP02/0500000US53031 |url-status=dead |archive-url=https://archive.today/20200213015823/http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US53031 |archive-date=February 13, 2020 |access-date=March 6, 2016 |publisher=[[United States Census Bureau]]}}</ref>

Of the 14,049 households, 18.2% had children under the age of 18 living with them, 49.1% were married couples living together, 7.3% had a female householder with no husband present, 40.3% were non-families, and 32.2% of all households were made up of individuals. The average household size was 2.08 and the average family size was 2.57. The median age was 53.9 years.<ref name="census-dp1" />

The median income for a household in the county was $46,048 and the median income for a family was $59,964. Males had a median income of $45,616 versus $29,508 for females. The per capita income for the county was $28,528. About 8.9% of families and 13.5% of the population were below the [[poverty line]], including 20.8% of those under age 18 and 7.4% 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/DP03/0500000US53031 |url-status=dead |archive-url=https://archive.today/20200213020158/http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US53031 |archive-date=February 13, 2020 |access-date=March 6, 2016 |publisher=[[United States Census Bureau]]}}</ref>

===2000 census===
As of the [[2000 United States census|2000 census]], there were 25,953 people, 11,645 households, and 7,580 families living in the county. The [[population density]] was {{convert|14|/mi2|/km2|disp=preunit|people&nbsp;|people}}. There were 14,144 housing units at an average density of {{convert|8|/mi2|/km2}}. The racial makeup of the county was 92.17% [[Race (United States Census)|White]], 0.42% [[Race (United States Census)|Black]] or [[Race (United States Census)|African American]], 2.31% [[Race (United States Census)|Native American]], 1.19% [[Race (United States Census)|Asian]], 0.13% [[Race (United States Census)|Pacific Islander]], 0.76% from [[Race (United States Census)|other races]], and 3.02% from two or more races. 2.06% of the population were [[Race (United States Census)|Hispanic]] or [[Race (United States Census)|Latino]] of any race. 17.4% were of [[German people|German]], 14.8% [[English people|English]], 9.9% [[Irish people|Irish]] and 7.5% [[Norwegian people|Norwegian]] ancestry. 97.1% spoke [[English language|English]] and 1.0% [[Spanish language|Spanish]] as their first language.

There were 11,645 households, out of which 23.20% had children under the age of 18 living with them, 53.60% were [[Marriage|married couples]] living together, 8.20% had a female householder with no husband present, and 34.90% were non-families. 28.50% of all households were made up of individuals, and 11.70% had someone living alone who was 65 years of age or older. The average household size was 2.21 and the average family size was 2.67.

In the county, the population was spread out, with 19.80% under the age of 18, 5.00% from 18 to 24, 21.60% from 25 to 44, 32.50% from 45 to 64, and 21.10% who were 65 years of age or older. The median age was 47 years. For every 100 females there were 95.80 males. For every 100 females age 18 and over, there were 94.40 males.

The median income for a household in the county was $37,869, and the median income for a family was $45,415. Males had a median income of $37,210 versus $25,831 for females. The [[per capita income]] for the county was $22,211. About 7.20% of families and 11.30% of the population were below the [[poverty line]], including 16.60% of those under age 18 and 6.00% of those age 65 or over.

==Politics==
[[Image:Port Townsend Bay.jpg|right|thumb|Port Townsend Bay as seen from a ferry]]
[[File:US 101 Jefferson County.JPG|thumb|US Route 101 in Jefferson County]]
Jefferson County is a dominant [[Democratic Party (United States)|Democratic]] area, with Democrats having carried the county in every election cycle since [[Ronald Reagan]]'s landslide victory in [[1980 United States presidential election|1980]]. In [[1984 United States presidential election in Washington (state)|1984]], [[Walter Mondale]] narrowly won Jefferson County over Reagan by 0.63%, and since then the county has become strongly Democratic. In 2024, Jefferson County swung even more Democratic, with [[Kamala Harris]] winning the county with 70.69% of its vote to [[Donald Trump]]'s 25.61%. {{As of|2024}} the county is located in [[Washington's 6th congressional district]] and in the 24th of [[Washington state legislative districts]].

Because of the [[Olympic Mountains|barrier dividing the county]], the populations and economies differ between the eastern and western halves of Jefferson County. The contrasts are notable as the west portion is more dependent on [[logging]], somewhat less prosperous, and having fewer people for roughly the same area. Areas of East Jefferson County located south of Port Townsend remain largely rural and can be divided into two parts, those communities located on the Hood Canal and those on the Admiralty Inlet. Perennial discussions and attempts to separate the west half from the east half gained little support during the twentieth century.

The county seat, Port Townsend, casts a significant number of votes and gave Obama 82% of its votes in the 2012 presidential election. Areas outside of Port Townsend (such as Cape George) gave Obama 2-to-1 victory margins. Democrats also draw the most votes in many of the small towns of northern Jefferson County, with strong Democratic leans in Coyle, Discovery Bay, Gardiner, and Nordland, as well as in the towns just southeast of Port Townsend such as Chimacum, [[Irondale, Washington|Irondale]], [[Kala Point, Washington|Kala Point]], and Port Hadlock. Democrats also perform strongly in the sparsely populated western part of the county, where much of the population is Native American.

{{PresHead|place=Jefferson County, Washington|whig=no|source1=<ref>{{Cite web |title=Dave Leip's Atlas of U.S. Presidential Elections |url=https://uselectionatlas.org/RESULTS/ |access-date=December 10, 2018 |website=uselectionatlas.org}}</ref>}}
<!-- PresRow should be {{PresRow|Year|Winning party|GOP/Whig vote #|Dem vote #|3rd party vote #|State}} -->
{{PresRow|2024|Democratic|6,324|17,459|915|Washington (state)}}
{{PresRow|2020|Democratic|6,931|17,204|657|Washington (state)}}
{{PresRow|2016|Democratic|6,037|12,656|2,186|Washington (state)}}
{{PresRow|2012|Democratic|6,405|12,739|817|Washington (state)}}
{{PresRow|2008|Democratic|6,330|13,252|541|Washington (state)}}
{{PresRow|2004|Democratic|6,650|11,610|390|Washington (state)}}
{{PresRow|2000|Democratic|6,095|8,281|1,457|Washington (state)}}
{{PresRow|1996|Democratic|4,607|7,145|2,367|Washington (state)}}
{{PresRow|1992|Democratic|3,467|6,148|3,327|Washington (state)}}
{{PresRow|1988|Democratic|4,184|5,270|182|Washington (state)}}
{{PresRow|1984|Democratic|4,543|4,602|189|Washington (state)}}
{{PresRow|1980|Republican|3,645|3,279|1,246|Washington (state)}}
{{PresRow|1976|Democratic|2,794|2,913|385|Washington (state)}}
{{PresRow|1972|Republican|2,770|2,096|313|Washington (state)}}
{{PresRow|1968|Democratic|1,827|2,251|427|Washington (state)}}
{{PresRow|1964|Democratic|1,432|3,012|12|Washington (state)}}
{{PresRow|1960|Democratic|2,103|2,197|7|Washington (state)}}
{{PresRow|1956|Republican|2,300|1,750|7|Washington}}
{{PresRow|1952|Republican|2,355|1,933|17|Washington}}
{{PresRow|1948|Democratic|1,610|1,911|155|Washington}}
{{PresRow|1944|Democratic|1,415|1,829|18|Washington}}
{{PresRow|1940|Democratic|1,540|2,083|32|Washington}}
{{PresRow|1936|Democratic|1,063|2,279|83|Washington}}
{{PresRow|1932|Democratic|952|1,994|321|Washington}}
{{PresRow|1928|Republican|1,472|810|24|Washington}}
{{PresRow|1924|Republican|913|143|707|Washington}}
{{PresRow|1920|Republican|1,128|322|382|Washington}}
{{PresRow|1916|Republican|1,094|861|157|Washington}}
{{PresRow|1912|Progressive|636|642|1,048|Washington}}
{{PresRow|1908|Republican|859|417|84|Washington}}
{{PresRow|1904|Republican|962|283|62|Washington}}
{{PresRow|1900|Republican|684|392|32|Washington}}
{{PresRow|1896|Republican|704|536|10|Washington}}
{{PresFoot|1892|Democratic|610|665|116|Washington}}

==Economy==
The largest private employer in Jefferson County is the Port Townsend Paper Mill.<ref>{{cite web |last=McClary |first=Daryl C. |date=September 26, 2005 |title=Jefferson County — Thumbnail History |url=https://www.historylink.org/File/7472 |work=HistoryLink |access-date=July 7, 2012}}</ref> The largest employer overall (private and public) is [[Jefferson Healthcare]], which operates [[Jefferson Healthcare Hospital]].<ref>{{Cite news |last=Bermant |first=Charlie |date=September 14, 2010 |title=Hospital's new CEO highest paid public official in Jefferson County |url=http://www.peninsuladailynews.com/article/20100915/news/309159984/hospitals-new-ceo-highest-paid-public-official-in-jefferson-county |access-date=July 7, 2012 |work=The Peninsula Daily News}}</ref>

==Infrastructure==

===Utilities===

The Jefferson County Public Utility District (PUD) provides [[electricity]] to over 23,000 customers in Jefferson County and water to 5,600 customers.<ref>{{cite web |date=February 18, 2025 |title=Accountability Audit Report: Public Utility District No. 1 of Jefferson County |page=6 |url=https://portal.sao.wa.gov/ReportSearch/Home/ViewReportFile?arn=1036637&isFinding=false&sp=false |publisher=[[Washington State Auditor|Office of the Washington State Auditor]] |accessdate=March 3, 2025}}</ref> It was established in 1939 to construct electrical infrastructure for rural communities and expanded into providing water service in 1981.<ref>{{cite web |title=History Of Jefferson County PUD No. 1 |url=https://www.jeffpud.org/mission-vision-history-of-the-pud/ |publisher=Jefferson County Public Utility District |accessdate=March 3, 2025}}</ref> The PUD began electrical service to the entire county in April 2013 after it had acquired assets and infrastructure from [[Puget Sound Energy]], a private operator, for $103 million. The transfer had been approved by voters in the November 2008 general election after Puget Sound Energy had been sold to an Australian [[hedge fund]].<ref>{{cite news |last=Wilson |first=Scott |date=April 14, 2023 |title=Public power vote in 2008 set up PUD's 10th anniversary in 2023 |url=https://www.ptleader.com/stories/public-power-vote-in-2008-set-up-puds-10th-anniversary-in-2023,115666 |work=[[Port Townsend & Jefferson County Leader]] |accessdate=March 3, 2025}}</ref>

==Communities==
[[File:Port Townsend and Admiralty Inlet.jpg|thumb|[[Port Townsend, Washington|Port Townsend]] and [[Admiralty Inlet]]]]

===City===
* [[Port Townsend, Washington|Port Townsend]] (county seat)

===Census-designated places===
* [[Brinnon, Washington|Brinnon]]
* [[Marrowstone, Washington|Marrowstone]]
* [[Port Hadlock-Irondale, Washington|Port Hadlock-Irondale]]
* [[Port Ludlow, Washington|Port Ludlow]]
* [[Queets, Washington|Queets]]
* [[Quilcene, Washington|Quilcene]]

===Unincorporated communities===
{{div col|colwidth=18em}}
*[[Adelma Beach, Washington|Adelma Beach]]
*[[Beckett Point, Washington|Beckett Point]]
*[[Cape George, Washington|Cape George]]
*[[Center, Washington|Center]]
*[[Chimacum, Washington|Chimacum]]
*[[Clearwater, Washington|Clearwater]]
*[[Coyle, Washington|Coyle]]
*[[Crocker Lake, Washington|Crocker Lake]]
*[[Dabob, Washington|Dabob]]
*[[Discovery Bay, Washington|Discovery Bay]]
*[[East Quilcene, Washington|East Quilcene]]
*[[Gardiner, Washington|Gardiner]]
*[[Glen Cove, Washington|Glen Cove]]
*[[Irondale, Washington|Irondale]]
*[[Kala Point, Washington|Kala Point]]
*[[Kalaloch, Washington|Kalaloch]]
*[[Leland, Washington|Leland]]
*[[Mats Mats, Washington|Mats Mats]]
*[[Oak Bay, Washington|Oak Bay]]
*[[Swansonville, Washington|Swansonville]]
{{div col end}}

==See also==
*[[Heron House]]
*[[National Register of Historic Places listings in Jefferson County, Washington]]

==References==
{{Reflist}}

==External links==
* {{osmrelation|1153701}}
*  [http://www.countyrec.com Official Jefferson County Parks and Recreation Department Website] The official government website for Jefferson County Parks and Recreation, a Division of Jefferson County Public Works Department.
* [http://content.lib.washington.edu/cmpweb/index.html University of Washington Libraries Digital Collections – The Pacific Northwest Olympic Peninsula Community Museum] A web-based museum showcasing aspects of the rich history and culture of Washington State's Olympic Peninsula communities. Features cultural exhibits, curriculum packets and a searchable archive of over 12,000 items that includes historical photographs, audio recordings, videos, maps, diaries, reports and other documents.
*  [http://www.co.jefferson.wa.us Jefferson County Official Website]
* {{Cite web |title=Jefferson County Historical Society |url=https://jchsmuseum.org/}} This museum and research center maintains an online collection of 19,000 photographs and over 27,000 archival descriptions and catalog records. The society's mission is to discover, collect, preserve, and promote the heritage of Jefferson County.

{{Geographic Location
|Centre    = Jefferson County, Washington
|Northwest = [[Clallam County, Washington|Clallam County]]
|North     = ''[[Strait of Juan de Fuca]]''<br>([[Capital Regional District]], [[British Columbia]] {{flagicon|Canada}})
|Northeast = ''[[Strait of Juan de Fuca]]''<br>[[San Juan County, Washington|San Juan County]]<br>[[Island County, Washington|Island County]]
|East      = ''[[Puget Sound]]''<br/>[[Kitsap County, Washington|Kitsap County]]
|Southeast = ''[[Hood Canal]]''<br/>[[Kitsap County, Washington|Kitsap County]]
|South     = [[Mason County, Washington|Mason County]]
|Southwest = [[Grays Harbor County, Washington|Grays Harbor County]]
|West      = ''[[Pacific Ocean]]''
}}

{{Jefferson County, Washington}}
{{Washington}}

{{coord|47.84|-123.58|display=title|type:adm2nd_region:US-WA_source:UScensus1990}}

{{authority control}}

[[Category:Jefferson County, Washington| ]]
[[Category:1852 establishments in Oregon Territory]]
[[Category:Populated places established in 1852]]
[[Category:Washington (state) counties]]
[[Category:Western Washington]]