2004 United States Senate election in Iowa

2004 United States Senate election in Iowa

← 1998 November 2, 2004 2010 →
 
Nominee Chuck Grassley Arthur A. Small
Party Republican Democratic
Popular vote 1,038,175 412,365
Percentage 70.18% 27.88%

County results
Grassley:      50-60%      60-70%      70-80%      80-90%      >90%

U.S. senator before election

Chuck Grassley
Republican

Elected U.S. Senator

Chuck Grassley
Republican

The 2004 United States Senate election in Iowa was held on November 2, 2004. Incumbent Republican United States Senator Chuck Grassley ran for re-election to a fifth term in the United States Senate. Grassley and former State Senator Arthur A. Small won the Republican and Democratic primaries, respectively, unopposed, and faced each other in the general election. Though this election coincided with the highly competitive presidential election, Grassley was not considered vulnerable and defeated Small in a landslide.

As of 2024, this is the last time a Republican Senate candidate won Johnson County. As of 2024, this is also the last time that the winning United States Senate candidate carried all counties in Iowa for this seat.