06/14/2026
Do you know the history of the County you live in?
Benton County was created from what were then larger versions of Klickitat County and Yakima County on March 8, 1905. In 2025, we celebrated 120 years! The picture on the right shows dignitaries and townspeople celebrating the inauguration of Benton County at the Prosser Hotel on July 4, 1905. Our county was named after a Missouri statesman, Thomas Hart Benton, pictured on the left.
Benton County is one of the 33 counties in Washington that operates under the non-chartered “commission” form of government. Three Commissioners share administrative aegis with several other partisan officials independently elected to four-year terms of office. In Benton County, the Commissioners appoint a County Administrator to oversee all departments that do not fall under other elected officials.