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area code

Biggest city:





Pacific (GMT -8)

Nearby area codes: 

Zip codes



Major Cities:

Spokane, Yakima, Tri-Cities, Wenatchee, Walla Walla


Average Income:





Unemployment Rate:

The 509 area code is an integral part of Washington State's telecommunications system, serving the eastern portion of the state and playing a crucial role in its connectivity and regional identity. Eastern Washington's Communication Link: Established in a split from the 206 area code in 1957, the 509 area code covers the entire eastern part of Washington State. This includes significant cities and regions like Spokane, the Tri-Cities (Richland, Pasco, Kennewick), Yakima, and Walla Walla. The area code is vital for connecting diverse communities across a region characterized by a mix of urban centers, agricultural lands, and natural landscapes. Diverse Economic and Cultural Landscape: The region served by the 509 area code is known for its agricultural richness, particularly in wine production, with the Walla Walla and Columbia Valley areas being prominent. Eastern Washington is also home to important cultural and educational institutions, like Washington State University in Pullman. The 509 area code supports the varied economic activities and cultural interactions within these communities. Adapting to Regional Growth and Technological Changes: While the 509 area code has remained stable over the years, the continuous growth in population and the proliferation of mobile devices and internet services may eventually lead to changes such as the introduction of new area codes or overlays. This potential evolution reflects the region's adaptation to changing communication needs and technological advancements, ensuring continued and efficient service for its residents and businesses. The 509 area code is more than just a telecommunications feature; it represents the unique blend of eastern Washington's agricultural heritage, educational prominence, and natural beauty, playing a crucial role in connecting the region's diverse communities and supporting its economic and cultural activities.
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