Where Is Area Code 509?
Area code 509 is found in the US state of Washington. Primarily servicing the city of Spokane (population: 346133), area code 509 covers 21 counties of Washington.
Located in the Pacific time zone, area code 509 is on the same time as Los Angeles, CA.
Area code 509 was brought into effect on January 1, 1957.
Counties in Area Code 509
- Adams,
- Asotin,
- Benton,
- Chelan,
- Columbia,
- Douglas,
- Ferry,
- Franklin,
- Garfield,
- Grant,
- Kittitas,
- Klickitat,
- Lincoln,
- Okanogan,
- Pend Oreille,
- Skamania,
- Spokane,
- Stevens,
- Walla Walla,
- Whitman,
- Yakima.
Most Populous Cities in Area Code 509
| City | County | City Population | Time Zone |
|---|---|---|---|
| Spokane | Spokane | 346,133 | PST |
| Yakima | Yakima | 128,190 | PST |
| Kennewick | Benton | 93,868 | PST |
| Pasco | Franklin | 74,892 | PST |
| Richland | Benton | 50,308 | PST |
| Wenatchee | Chelan | 41,674 | PST |
| Walla Walla | Walla Walla | 41,491 | PST |
| Moses Lake | Grant | 40,882 | PST |
| Pullman | Whitman | 32,687 | PST |
| Ellensburg | Kittitas | 30,798 | PST |
| East Wenatchee | Douglas | 29,405 | PST |
| Sunnyside | Yakima | 22,354 | PST |
| Clarkston | Asotin | 19,785 | PST |
| Cheney | Spokane | 18,552 | PST |
| Selah | Yakima | 17,234 | PST |
| Othello | Adams | 17,148 | PST |
| Grandview | Yakima | 15,509 | PST |
| Wapato | Yakima | 13,950 | PST |
| West Richland | Benton | 13,854 | PST |
| Prosser | Benton | 13,507 | PST |
| Toppenish | Yakima | 13,428 | PST |
| Veradale | Spokane | 13,097 | PST |
| Greenacres | Spokane | 12,599 | PST |
| Deer Park | Spokane | 12,042 | PST |
| Colville | Stevens | 12,019 | PST |
Note: The above list is based off of the top 25 most populous cities in the area code as per 2012 United States Census Bureau estimates.
View all United States Area Codes.
This page was last updated on July 3, 2015.