Big fan of election and demographic numbers since 2006
 

1940 United States Congressional Elections – Iowa

United States House of Representatives – District 1 – GOP Hold

Thomas E. Martin (R-inc) – 70,12060.37%

Mrs. Zoe S. Nabers (D) – 46,04039.63%

Total Votes – 116,160100.00%

United States House of Representatives – District 2 – DEM Hold

William S. Jacobsen (D-inc) – 75,77452.23%

W. A. McCullough (R) – 69,29847.77%

Total Votes – 145,072100.00%

United States House of Representatives – District 3 – GOP Hold

John W. Gwynne (R-inc) – 65,42559.95%

Ernest J. Seeman (D) – 43,70940.05%

Total Votes – 109,134100.00%

United States House of Representatives – District 4 – GOP Hold

Henry O. Talle (R-inc) – 66,69156.40%

Morgan J. McEnaney (D) – 51,55843.60%

Total Votes – 118,249100.00%

United States House of Representatives – District 5 – GOP Hold

Karl M. Le Compte (R-inc) – 66,94053.27%

Roy E. Stevens (D) – 58,71846.73%

Total Votes – 125,658100.00%

United States House of Representatives – District 6 – GOP Hold

Paul H. Cunningham (R) – 70,70752.28%

E. Frank Fox (D) – 64,31447.56%

D. Robinson (Proh.) – 2140.16%

Total Votes – 135,235100.00%

United States House of Representatives – District 7 – GOP Hold

Ben F. Jensen (R-inc) – 71,63358.58%

Ernest M. Miller (D) – 50,64441.42%

Total Votes – 122,277100.00%

United States House of Representatives – District 8 – GOP Hold

Fred C. Gilchrist (R-inc) – 64,68758.13%

Frank J. Lund (D) – 46,59741.87%

Total Votes – 111,284100.00%

United States House of Representatives – District 9 – DEM Hold

Vincent F. Harrington (D-inc) – 67,01750.81%

Albert F. Swanson (R) – 64,87749.19%

Total Votes – 131,894100.00%

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