File:Jefferson_County_Courthouse_in_Port_Townsend,_WA.jpg · Wikimedia Commons · See Wikimedia Commons
Jefferson County
Sign in to saveAlso known as Jefferson County, Washington, Jefferson County, WA
county in the state of Washington, United States
Key facts
- Country
- United States
- State
- Washington
- Founded
- December 22, 1852
- Named after
- Thomas Jefferson
- Seat
- Port Townsend
- Largest city
- Port Townsend
- Total
- 2,183 sq mi (5,650 km )
- Land
- 1,804 sq mi (4,670 km )
- Water
- 379 sq mi (980 km ) 17%
- Estimate 2025
- 33,970
- Density
- 17/sq mi (6.6/km )
- Time zone
- UTC−8 ( Pacific )
- Summer dst
- UTC−7 ( PDT )
- Congressional district
- 6th
- Website
- co.jefferson.wa.us
via Wikipedia infobox
Wikidata facts
- Instance of
- geographic location
- Named after
- Thomas Jefferson
- Country
- United States
- Located in
- Washington
- Contains
- Port Townsend
- Capital
- Port Townsend
- Population
- 32977
- Area
- 5655
- Shares border with
- Mason County
- Official website
- www.co.jefferson.wa.us
- Image
- Jefferson County Courthouse in Port Townsend, WA.jpg
- Households
- 15051
Show 7 more facts
- Commons category
- Jefferson County, Washington
- topic's main category
- Category:Jefferson County, Washington
- inception
- 1852-00-00
- water as percent of area
- 17
- native label
- Jefferson County
- topic has template
- Template:Jefferson County, Washington
- per capita income
- 38176
Sources (9)
via Wikidata · CC0
~12 min read
Encyclopedic overview
Jefferson County is a county located in the U.S. state of Washington. As of the 2020 census, the population was 32,977. The county seat and only incorporated city is Port Townsend. The county is named for Thomas Jefferson.
Jefferson County was formed out of Thurston County on December 22, 1852, by the legislature of Oregon Territory, and included the northern 4,854-square-mile (12,571.8 km) portion of the Olympic Peninsula. On April 26, 1854, the legislature of Washington Territory created Clallam County from the northwestern 2,670-square-mile (6,915.3 km) portion of this original area.
Excerpted from Wikipedia’s “Jefferson County” article, available under the CC BY-SA 4.0 licence.