509 Area Code — Washington

509 is a North American Numbering Plan area code for Washington, the United States. It covers about 1,692,457 people in 218 towns and 257 ZIP codes, including Spokane, Yakima and Kennewick.

Where area code 509 is used

Area code 509 is assigned to Washington, the United States, inside the North American Numbering Plan. Numbers in the code are written (509) NXX-XXXX at home and +1 509 NXX-XXXX when dialled from outside Canada and the United States. Since the NANP moved to 10-digit dialling you must always include the area code, even for a local call.

Towns and cities in area code 509

The 218 towns below are the largest in the 509 footprint, ranked by population. Every one of them links to its own page with the full list of area codes and ZIP codes for that town.

Counties covered

Nearby area codes

How to dial area code 509

• Within North America: 509 + 7-digit number (509-NXX-XXXX). The leading 1 is optional on a mobile phone and required on most landlines for long-distance.
• From abroad: your country's international prefix, then 1, then 509, then the 7-digit number — for example 00 1 509 NXX-XXXX from most of Europe.