Big fan of election and demographic numbers since 2006
 

1966 United States Congressional Elections – Iowa

United States Senate – GOP Hold

Jack Miller (R-inc) – 522,33960.91%

E. B. Smith (D) – 324,11437.80%

Robert D. Dilley (American Constitution) – 3,8260.45%

Charles H. Day (Peace Independent) – 3,0500.36%

Herbert F. Hoover (Iowa) – 2,0850.24%

Verne Higens (National Prohibition) – 2,0810.24%

Scattering – 10.00%

Total Votes – 857,496100.00%

United States House of Representatives – District 1 – GOP Gain

Fred Schwengel (R) – 64,79551.29%

John R. Schmidhauser (D-inc) – 60,53447.92%

Merle M. Thayer (American Constitution) – 1,0070.80%

Total Votes – 126,336100.00%

United States House of Representatives – District 2 – DEM Hold

John C. Culver (D-inc) – 76,28153.96%

Robert M. L. Johnson (R) – 65,07946.04%

Scattering – 10.00%

Total Votes – 141,361100.00%

United States House of Representatives – District 3 – GOP Hold

H. R. Gross (R-inc) – 79,34362.05%

L. A. Pat Touchae (D) – 48,53037.95%

Total Votes – 127,873100.00%

United States House of Representatives – District 4 – GOP Gain

John Henry Kyl (R) – 65,25951.66%

Bert Bandstra (D-inc) – 61,07448.34%

Total Votes – 126,333100.00%

United States House of Representatives – District 5 – DEM Hold

Neal Smith (D-inc) – 72,87560.44%

Don Mahon (R) – 46,98138.97%

Robbins Risher (American Constitution) – 7120.59%

Total Votes – 120,568100.00%

United States House of Representatives – District 6 – GOP Gain

Wiley Mayne (R) – 73,27457.42%

Stanley L. Greigg (D-inc) – 53,91742.25%

Lee E. Smith (American Constitution) – 4140.32%

Total Votes – 127,605100.00%

United States House of Representatives – District 7 – GOP Gain

William J. Scherle (R) – 64,21758.97%

John R. Hansen (D-inc) – 44,52940.89%

Gordon Risher (American Constitution) – 1450.13%

Scattering – 10.00%

Total Votes – 108,892100.00%

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