Geographic Regions and Area Codes in Area Code 509

Area code 509 is located in the eastern part of Washington state, covering a wide range of cities and counties. The major cities within this area code include Spokane, Yakima, Kennewick, Pasco, and Richland. The region encompasses 21 counties, including Spokane County, Yakima County, and Benton County. This area code is the sole area code serving this region, with no overlays, making it unique in its coverage.

Key cities and their respective populations include:

  • Spokane: 228,989 residents
  • Yakima: 96,968 residents
  • Kennewick: 83,921 residents

For businesses, understanding the geographic spread and the specific area code is crucial for local marketing and customer service strategies.