Columbia County

US States / V-Z / Washington / Columbia County

Columbia County is named for the Columbia River.


Surrounding County Courthouses: 

N – Franklin County and Whitman County

E – Garfield County 

S – Wallowa County, Oregon and Umatilla County, Oregon

W – Walla Walla County


Created:  November 11, 1875                Map of Washington highlighting Columbia County

County Seat: 

Dayton  1875 – present


County Courthouse – Dayton 


Location:   341 East Main Street / North 3rd Street

Built:  1887 – 1888

Style:  Late Victorian

Architect:  W H Burrows

Contractor:  A J Dexter


Description:  The building  faces southeast and is a two story gray colored Dexter brick and timber structure. The building is located on landscaped grounds in the center of Dayton. The southeast front has a small one story portico with balcony. The east and west sides project from the main building. There is a wide eave at the roof line. Above the central south front is a peak with the Statue of Justice. On the center of the roof is a square wood cupola with a railing at the top. The building experienced a major renovation to restore the exterior ornamental detail between 1991 and 1993.


History:  The building is only courthouse erected in the county and is the oldest courthouse still in use in Washington.




County Courthouse – Dayton
















Photos taken 2009