Kennewick, WA Area Codes
Kennewick is served by area code 509. It is in Washington, Benton County. About 104,655 people live in its 3 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 509 |
| State / province | Washington |
| County | Benton County |
| Population | 104,655 |
| ZIP codes | 3 |
| Time zone | Pacific |
| Coordinates | 46.1466, -119.1827 |
What area code is Kennewick in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 509 | Washington | 1,692,457 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
Richland 509Pasco 509West Richland 509Benton City 509Prosser 509Sunnyside 509Grandview 509College Place 509
How to dial
Dial 509 + 7 digits for a number in Kennewick, or +1 509 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.