Elections archive
Every Iowa election since 1968
Iowa's generals, primaries, specials and runoffs in the 99chambers archive, newest first: Congress, governor, statewide offices and the Iowa legislature.
Races4,211
Changed party302
Unopposed22%877 races
Incumbents defeated274
2026
2025
2024
2022
2020
2018
2016
2014
2012
2010
2008
2006
2004
2002
2000
1998
1996
1994
1992
1990
1989
1988
1986
1984
1982
1980
1978
1976
1974
1972
1970
1968
Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: Algara, Carlos; Amlani, Sharif (Harvard Dataverse); English Wikipedia; Harvard Dataverse / Carl Klarner; MIT Election Data and Science Lab