Washington County
Sign in to savecounty in Tennessee, United States
Key facts
- Country
- United States
- State
- Tennessee
- Named after
- George Washington
- Seat
- Jonesborough
- Largest city
- Johnson City
- Total
- 330 sq mi (850 km )
- Land
- 326 sq mi (840 km )
- Water
- 3.3 sq mi (8.5 km ) 1.0%
- Estimate 2025
- 141,199
- Density
- 408/sq mi (158/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional district
- 1st
- Website
- www .washingtoncountytn .org
via Wikipedia infobox
Article
Washington County is a county located in the U.S. state of Tennessee. As of the 2020 census, the population was 133,001. Its county seat is Jonesborough. The county's largest city and a regional educational, medical and commercial center is Johnson City. Washington County is Tennessee's oldest county, having been established in 1777 when the state was still part of North Carolina. Washington County is part of the Johnson City, TN Metropolitan Statistical Area, which is a component of the Johnson City–Kingsport–Bristol, TN-VA Combined Statistical Area, commonly known as the "Tri-Cities" region.
History