Jefferson County, Washington
Jefferson County: County in the state of Washington, United States
About
Jefferson County is a county located in the U.S. state of Washington. As of the 2010 census, the population was 29,872 and a population density of 5 people per km². After 10 years in 2020 county had an estimated population of 32,700 inhabitants. Its county seat is Port Townsend. The county was created 172 years ago in 1851.
Quick Facts about Jefferson County
| Population : | 32,700 (2020) |
| Country : | United States of America |
| State : | Washington (United States) |
| Different from : | Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson County, Jefferson Parish, Jefferson County, Jefferson County, Jefferson County, Jefferson County |
| Area : | 5655 km2 |
| Water as percent of area : | 17% |
| Land as percent of area : | 83% |
| Named for : | Thomas Jefferson |
| Capital : | Port Townsend |
| Establishment : | January 01, 1852 |
| Time Zone : | America/Los_Angeles |
| Local time : | 00:22:17 (25th November 2024) |
| Density : | 6 Pop. per km² as of 2020 |
| Population growth : | 8.65% (2010-2020) |
Geography
Jefferson County is located at 47°46'36"N 123°34'28"W (47.7765500, -123.5743100). It has 6 neighbors: Clallam County, Grays Harbor County, Island County, Kitsap County, Mason County and San Juan County.
Jefferson County map
Click "full screen" 
icon to open full mode. View satellite images
icon to open full mode. View satellite images
The largest city of Jefferson County is Port Townsend with a population of 9,973. . See all Jefferson County cities & populated places.
Jefferson County Populated Places
Cities, towns, neighborhoods & other populated places in Jefferson County.
| City Name | Population | Title |
|---|---|---|
| Port Townsend | 9,973 | City in and county seat of Jefferson County, Washington |
| Port Ludlow | 2,603 | Census-designated place in Jefferson County, Washington (state), USA |
- Official Website
Official website of Jefferson County
Jefferson County has 6 neighbours.
- Clallam County county in the state of Washington, United States
- Grays Harbor County county in the state of Washington, United States
- Island County county in the state of Washington, United States
- Kitsap County county in the state of Washington, United States
- Mason County county in the state of Washington, United States
- San Juan County county in the state of Washington, United States
- Port Townsend
Demographics
The population of Jefferson County increased by 8.65% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 29,872 | - | census |
| 2011 | 29,853 | -0.06% | estimation process |
| 2012 | 29,800 | -0.18% | estimation process |
| 2013 | 30,004 | 0.68% | estimation process |
| 2014 | 30,147 | 0.47% | estimation process |
| 2015 | 30,339 | 0.63% | estimation process |
| 2016 | 30,910 | 1.85% | estimation process |
| 2017 | 31,210 | 0.96% | estimation process |
| 2018 | 31,746 | 1.69% | estimation process |
| 2019 | 32,221 | 1.47% | estimation process |
| 2020 | 32,700 | 1.46% | estimation process |
Comitatul Jefferson, Comte de Jefferson, Comté de Jefferson, Condado de Jefferson, Condado han Jefferson, Contea di Jefferson, Dzhefersun, Dzhefferson, Hrabstwo Jefferson, Jefferson, Jefferson Kun, Jefferson Kūn, Jefferson konderria, Jefferson megye, Jeffersoni maakond, Kantono Jefferson, Okrug DZeferson, Quan Jefferson, Quận Jefferson, jefason jun, jepharasana ka'unti, jie fu xun xian, mqatʿt jyrfrswn, shhrstan jfrswn washyngtn, Джеферсън, Джефферсон, Округ Џеферсон, جیفرسن کاؤنٹی، واشنگٹن, شهرستان جفرسون، واشینگتن, مقاطعة جيرفرسون, জেফারশন কাউন্টি, ジェファーソン郡, 傑佛遜縣
People born in Jefferson County (1)
American football player (1910-1941) Tommy Yarr was born in Jefferson County
Other places with the same name (25)
- Jefferson County , Kentucky county in Alabama, United States with a population of 767,452 people.
- Jefferson County , Alabama county in Alabama, United States with a population of 655,342 people.
- Jefferson County , Colorado county in Colorado, United States with a population of 583,283 people.
- Jefferson County , Texas county in Texas, United States with a population of 250,127 people.
- Jefferson County , Missouri county in Missouri, United States with a population of 226,543 people.
- Jefferson County , New York county in New York, United States with a population of 108,095 people.
- Jefferson County , Wisconsin county in Wisconsin, United States with a population of 85,038 people.
- Jefferson County , Arkansas county in Arkansas, United States with a population of 65,377 people.
- Jefferson County , Ohio county in Ohio, United States with a population of 64,939 people.
- Jefferson County , West Virginia county in West Virginia, United States with a population of 57,486 people.
- Jefferson County , Tennessee county in Tennessee, United States with a population of 55,307 people.
- Jefferson County , Pennsylvania county in Pennsylvania, United States with a population of 43,108 people.
- Jefferson County , Illinois county in Illinois, United States with a population of 37,235 people.
- Jefferson County , Indiana county in Indiana, United States with a population of 32,110 people.
- Jefferson County , Idaho county in Idaho, United States with a population of 29,871 people.
- Jefferson County , Oregon county in Oregon, United States with a population of 24,856 people.
- Jefferson County , Kansas county in Kansas, United States with a population of 19,032 people.
- Jefferson County , Iowa county in Iowa, United States with a population of 18,347 people.
- Jefferson County , Georgia county in Georgia, United States with a population of 15,267 people.
- Jefferson County , Florida county in Florida, United States of America with a population of 14,543 people.
- Jefferson County , Montana county in Montana, United States with a population of 12,360 people.
- Jefferson County , Nebraska county in Nebraska, United States with a population of 7,099 people.
- Jefferson County , Mississippi county in Mississippi, United States with a population of 6,997 people.
- Jefferson County , Oklahoma county in Oklahoma, United States with a population of 5,949 people.
Washington Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| King County | 2,274,315 | County in the state of Washington, United States |
| Pierce County | 913,890 | County in the state of Washington, United States |
| Snohomish County | 830,393 | County in the state of Washington, United States |
| Seattle | 769,714 | The eighteenth most populous city in the United States and the center of the Seattle metropolitan area. |
| Spokane County | 528,225 | County in the state of Washington, United States |
| Clark County | 496,865 | County in Washington, United States |
| Thurston County | 294,074 | County in the state of Washington, United States |
| Kitsap County | 272,787 | County in the state of Washington, United States |
| Yakima County | 251,879 | County in the state of Washington, United States |
| Whatcom County | 231,016 | County in the state of Washington, United States |
| Spokane | 222,050 | The second most populous city in Washington. |
| Tacoma | 219,945 | The third most populous city in Washington. |
| Benton County | 206,426 | County in Arkansas, United States |
| Vancouver | 186,192 | The third most populous city in Washington. |
| Bellevue | 148,073 | The most populous city in Washington. |
| Skagit County | 130,789 | County in the state of Washington, United States |
