Capital is located on Olympia's Westside, and serves the entire northwest corner of Thurston County.

Capital High School started remodeling the building in 2005 and it was completed on 2006 costing about $10.5 million.

The new remodel included a new student commons, a 400-seat auditorium, an auxiliary gymnasium, fitness room, modernization of the library, alternative education, administrative offices, and four pod areas.

On Christmas morning of 2008 around 5 A.M., one of the remodeled sections of roof collapsed due to heavy snow.

[citation needed] Capital High School is a 3A-division member of the Washington Interscholastic Activities Association.