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Washington County Area Codes

About Washington County Area Codes

The county of Washington County, located in Tennessee, is served by 1 telephone area code(s) in this dataset. These calling codes cover cities, suburbs, and unincorporated communities across the county.

Major phone area codes used in Washington County include 423. The county mainly follows the America/New_York time zone.

Cities and towns served by these area codes in Washington County include Johnson City.

List of Area Codes in Washington County, Tennessee

The table below lists all telephone area codes used in Washington County, Tennessee, along with their associated cities and time zones from this dataset.


S.N. Area Code Cities Time Zone(s)
1 423 Johnson City America/New_York


Related Area Code Pages

Explore related area code resources on Burning Compass:

  • All area codes in Tennessee
  • Individual area code details are available from the table above.

County Area Codes in Tennessee

  1. Anderson County Area Codes
  2. Blount County Area Codes
  3. Bradley County Area Codes
  4. Davidson County Area Codes
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  16. Washington County Area Codes
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  18. Wilson County Area Codes

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