For state races, special elections are held when a federal office becomes vacant, or when the Oregon Legislature schedules an election to vote on a ballot measure.
1910-1919
1920-1929
1930-1939
1940-1949
1960-1969
1970-1979
1980-1989
1990-1999
2000-2009
2010-2019
Publication Set, State
Voters' Pamphlets, Special Election. State Library of Oregon Digital Collections, accessed 13/06/2026, https://digitalcollections.library.oregon.gov/nodes/view/24864