States with a great many haunted locations are listed on separate pages, linked from this page.
California is the location of many supposedly haunted locations. Notable locations with reputations for being haunted include Alcatraz, El Adobe de Capistrano in San Juan Capistrano, and the Winchester Mystery House.
Several sites in Washington are reputedly haunted, including the Capitol Building, the White House, and the Octagon House (1801).
There are a number of Reportedly haunted locations in Oregon. Reported hauntings in the state are linked to such historic places as the Oregon Trail and early coastal communities, as well as the history of Portland, the state's largest city and metropolitan area, which was considered one of the most dangerous port cities in the world at the beginning of the 20th century. During 2012, USA Today named Portland among the top ten most haunted cities in the United States.