United States Senate – DEM Hold
John Culver (D) – 426,947 – 50.02%
David M. Stanley (R) – 420,546 – 49.27%
Lorin E. Oxley (American) – 6,028 – 0.71%
Total Votes – 853,521 – 100.00%
United States House of Representatives – District 1 – DEM Hold
Edward Mezvinsky (D-inc) – 75,687 – 54.36%
Jim Leach (R) – 63,540 – 45.64%
Total Votes – 139,227 – 100.00%
United States House of Representatives – District 2 – DEM Hold
Mike Blouin (D) – 73,416 – 51.12%
Tom Riley (R) – 69,088 – 48.11%
James W. Whitford (American) – 1,108 – 0.77%
Total Votes – 143,612 – 100.00%
United States House of Representatives – District 3 – GOP Hold
Chuck Grassley (R) – 77,468 – 50.84%
Stephen J. Rapp (D) – 74,895 – 49.16%
Total Votes – 152,363 – 100.00%
United States House of Representatives – District 4 – DEM Hold
Neal Smith (D-inc) – 96,755 – 63.90%
Chuck Dick (R) – 53,756 – 35.50%
Donna Le Porte (American) – 917 – 0.61%
Total Votes – 151,428 – 100.00%
United States House of Representatives – District 5 – DEM Gain
Tom Harkin (D) – 81,146 – 51.09%
William J. Scherle (R-inc) – 77,683 – 48.91%
Total Votes – 158,829 – 100.00%
United States House of Representatives – District 6 – DEM Gain
Berkley Bedell (D) – 86,315 – 54.63%
Wiley Mayne (R-inc) – 71,695 – 45.37%
Total Votes – 158,010 – 100.00%