High Quality Content by WIKIPEDIA articles! The Oregon State Capitol is the building housing the state legislature and the offices of the governor, secretary of state, and treasurer of the U.S. state of Oregon. It is located in the state capital, Salem. The current building, constructed from 1936 to 1938, and expanded in 1977, is the third to house the Oregon state government in Salem. Two former capitol buildings were destroyed by fire, one in 1855 and the other in 1935.