Gilliam County

US States / O-U / Oregon / Gilliam County

Gilliam County is named for Cornelius Gilliam, who was a pioneer and who commanded the forces of the Provisional Government of Oregon after the Whitman Massacre.


Created:  February 25, 1885

County Seat: 

Arlington  1885 – 1890

Condon    1890 – present


County Courthouse – Condon


Location:  221 South Oregon Street / West Gilliam Street

Built:  1954 – 1955

Style:  Modern

Architect:  Morrison and Howard and Wesley Korman

Contractor:  McCormack Construction Company


Description:  The building  faces east and is a two story red colored brick, concrete and glass structure. The building is located on spacious landscaped grounds. The south section projects from the main building and has horizontal windows on the two stories. The north section has glass panels on the exterior. The center section is a recessed porch with the main entrance. The roof line is flat.



N – Klickitat County, Washington

E – Morrow County 

S – Wheeler County

W – Wasco County and Sherman County
















Photos taken 2012