Where Is Area Code 509?
Area code 509 serves eastern Washington, including the Inland Northwest, Columbia Basin, Palouse, and Yakima Valley. Kennewick is the primary city, and other major communities include Spokane, Yakima, Pasco, Richland, Walla Walla, Wenatchee, Moses Lake, and Pullman.
The 509 region includes communities in Benton, Franklin, Spokane, Yakima, Walla Walla, Chelan, Grant, Kittitas, Whitman, and Okanogan counties. The Columbia River and Snake River are major geographic features in the region. Grand Coulee Dam and the Hanford Site near Richland are notable landmarks within the area.
Cities and Communities in the 509 Area Code
- Airway Heights, Spokane County
- Asotin, Asotin County
- Cheney, Spokane County
- Clarkston, Asotin County
- Colfax, Whitman County
- Colville, Stevens County
- East Wenatchee, Douglas County
- Ellensburg, Kittitas County
- Ephrata, Grant County
- Grand Coulee, Grant County
- Kennewick, Benton County
- Leavenworth, Chelan County
- Moses Lake, Grant County
- Omak, Okanogan County
- Pasco, Franklin County
- Pullman, Whitman County
- Richland, Benton County
- Spokane, Spokane County
- Spokane Valley, Spokane County
- Sunnyside, Yakima County
- Walla Walla, Walla Walla County
- Wenatchee, Chelan County
- West Richland, Benton County
- Yakima, Yakima County
History of Area Code 509
Area code 509 was established in 1957 when Washington's original area code, 206, was split. The split assigned 206 to western Washington and 509 to eastern Washington.
Area code 509 has not had a later geographic split or an overlay. As telephone use and population grew, western Washington received additional area codes, while 509 continued to cover eastern Washington, including growing centers such as Spokane and the Tri-Cities.
Key Facts About Area Code 509
- State: Area code 509 is a geographic area code in Washington State.
- Primary city: Kennewick, in Benton County, is the primary city associated with area code 509.
- U.S. Census region: Washington is part of the Pacific region according to the U.S. Census Bureau.
- Time zone: Area code 509 uses Pacific Time.
- Creation date: Area code 509 was created in 1957 through a split of area code 206.
- Type: Area code 509 is geographic, not toll-free.
- Universities: Washington State University is in Pullman, and Eastern Washington University is in Cheney, both within the 509 region.
- Landmarks: Grand Coulee Dam is on the Columbia River in the 509 region, and the Hanford Site is near Richland.
Frequently Asked Questions
What state is area code 509 in?
Area code 509 is in Washington State.
What major cities use area code 509?
Major cities using area code 509 include Kennewick, Spokane, Yakima, Pasco, Richland, Walla Walla, Wenatchee, Moses Lake, and Pullman.
What time zone is area code 509 in?
Area code 509 uses Pacific Time.
Is area code 509 a toll-free number?
No. Area code 509 is a geographic area code, not a toll-free number.