2004Final results
2004 election for Iowa's 3rd District
U.S. House · Iowa
Leonard L. Boswell (D) won with 55.2% of the vote, defeating Stan Thompson (R) by 10.5 points.
Leonard L. BoswellDemocrat · winner
55.2%168,007
Stan ThompsonRepublican
44.7%136,099
304,319 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2004
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Leonard L. BoswellStan Thompson
$1.6M
Raised by the campaign
$856.7K
$1.5M
Spent by the campaign
$862.3K
$26.1K
Cash on hand
-$36
Campaign money: FEC, through Dec 31, 2004.
Source: FEC campaign filingsUpdated Dec 31, 2004