Benton County, Washington Property Taxes

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    About The Office

    FORMS

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    TAX RELIEF/EXEMPTIONS

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    Helpful Links

    Prosser Office

    620 Market St

    PO Box 630

    Prosser, WA 99350

    Kennewick Office

    5600 W Canal Dr Ste A

    Kennewick, WA 99336

    Phone: 509-786-2255 or 509-735-8505

    Email: Treasurer@co.benton.wa.us

    Hours: 8:30am - 4:30pm Monday - Friday

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