Big fan of election and demographic numbers since 2006
 

1986 United States Congressional Elections – Iowa

United States Senate – GOP Hold

Charles Grassley (R-inc) – 588,88066.04%

John P. Roehrick (D) – 299,40633.57%

John Masters (Nominated by Petition) – 3,3700.38%

Scattering – 1060.01%

Total Votes – 891,762100.00%

United States House of Representatives – District 1 – GOP Hold

Jim Leach (R-inc) – 86,83466.37%

John R. Whitaker (D) – 43,98533.62%

Scattering – 60.00%

Total Votes – 130,825100.00%

United States House of Representatives – District 2 – GOP Hold

Tom Tauke (R-inc) – 88,70861.33%

Eric Tabor (D) – 55,90338.65%

Scattering – 190.01%

Total Votes – 144,630100.00%

United States House of Representatives – District 3 – DEM Gain

David R. Nagle (D) – 83,50454.61%

John McIntee (R) – 69,38645.37%

Scattering – 300.02%

Total Votes – 152,920100.00%

United States House of Representatives – District 4 – DEM Hold

Neal Smith (D-inc) – 107,27168.35%

Bob Lockard (R) – 49,64131.63%

Scattering – 400.03%

Total Votes – 156,952100.00%

United States House of Representatives – District 5 – GOP Hold

Jim Ross Lightfoot (R-inc) – 85,02559.21%

Scott Hughes (D) – 58,55240.78%

Scattering – 120.01%

Total Votes – 143,589100.00%

United States House of Representatives – District 6 – GOP Gain

Fred Grandy (R) – 81,86150.95%

Clayton Hodgson (D) – 78,80749.05%

Scattering – 110.01%

Total Votes – 160,679100.00%

Source: Office of the Clerk of the United States House of Representatives