Washington Area Codes
6 active area codes · Seattle · Population around 7,927,958
Washington has 6 active area codes, serving cities like Seattle, Spokane, and Tacoma. Of those, 3 are overlays covering ground another code already covers, which is why local calls there use all ten digits. The newest, 564, has been in service since August 28, 2017. Each code below links to its cities, carriers, timezone, and coverage map.
Washington Area Code Map
What area codes does Washington have?
- 206OverlaySeattlePacific Time (PT) · 17 cities · 1,053,092
- 253TacomaPacific Time (PT) · 71 cities · 1,288,399
- 360OverlayVancouverPacific Time (PT) · 274 cities · 2,296,746
- 425BellevuePacific Time (PT) · 76 cities · 1,369,014
- 509SpokanePacific Time (PT) · 215 cities · 1,671,583
- 564OverlayVancouverPacific Time (PT) · 274 cities · 3,349,838
More than one of these codes covers 20 of the 39 counties in Washington, and one county is covered by 5 of them. Each card counts the people inside that code's own boundary at the 2020 census. Adding all 6 gives 11,028,672, against the 7,705,281 the same census counts in those counties, because 3,323,391 residents fall inside more than one code.
How many phone prefixes does Washington use?
The area codes in Washington hold 3,423 assigned prefixes between them, listed under 89 distinct carrier names. A prefix is the three digits after the area code, and NANPA assigns each one to a single carrier.
Sources: City populations – U.S. Census Bureau PEP, Vintage 2024 (SUB-IP-EST2024-POP). State populations – the same program, Vintage 2025 (CO-EST2025-ALLDATA). Area-code footprint and county populations – 2020 Census Centers of Population, mapped against NANP area code boundaries. The share of each city inside a code is measured the same way, against Census place boundaries from the Census Bureau's TIGERweb service. Area code assignments – NANPA CO Code data. See our data methodology.
Frequently Asked Questions
How many area codes does Washington have?
Washington has 6 active area codes: 206, 253, 360, 425, 509, 564.
What is the main area code for Washington?
Of the 6 area codes in Washington, 206 is the oldest one still serving Seattle, its largest city. 206 has been in service since 1947.
What are the largest cities in Washington?
The largest cities in Washington include Seattle, Spokane, Tacoma, Vancouver, Bellevue.
What is the total population of Washington?
Washington has an estimated total population of 7,927,958 based on US Census PEP 2024 data.
Do I have to dial ten digits in Washington?
In the parts of Washington covered by an overlay, yes. 3 of the 6 area codes here cover ground another code already covers, and where two codes share an area, local calls need the area code as well as the seven-digit number.
Why does Washington have 6 area codes?
They arrived one at a time rather than all at once: 206 has been in service since 1947. 3 of the 6 are overlays, laid over a code that already covered the same ground instead of splitting its map in two. The most recent is 564, in service since August 28, 2017.
What is the newest area code in Washington?
564, in service since August 28, 2017.
Is my county covered by more than one area code in Washington?
It may be: more than one area code covers 20 of the 39 counties in Washington, and one county there is covered by 5 of them. The table above shows which codes reach each of the largest cities.