| Election Name: | 1940 Iowa Senate election |
| Country: | Iowa |
| Flag Image: | Flag of Iowa (variant).svg |
| Type: | legislative |
| Ongoing: | no |
| Previous Election: | 1938 Iowa Senate election |
| Previous Year: | 1938 |
| Next Election: | 1942 Iowa Senate election |
| Next Year: | 1942 |
| Seats For Election: | 29 out of 50 seats in the Iowa State Senate |
| Majority Seats: | 26 |
| Election Date: | November 5, 1940 |
| Party1: | Republican Party (United States) |
| Last Election1: | 38 |
| Seat Change1: | 7 |
| Seats After1: | 45 |
| Party2: | Democratic Party (United States) |
| Last Election2: | 12 |
| Seat Change2: | 7 |
| Seats After2: | 5 |
The 1940 Iowa State Senate elections took place as part of the biennial 1940 United States elections. Iowa voters elected state senators in 29 of the state senate's 50 districts. State senators serve four-year terms in the Iowa State Senate.
A statewide map of the 50 state Senate districts in the 1940 elections is provided by the Iowa General Assembly here.
The primary election on June 3, 1940 determined which candidates appeared on the November 5, 1940 general election ballot.[1] [2]
Following the previous election, Republicans had control of the Iowa state Senate with 38 seats to Democrats' 12 seats.
To claim control of the chamber from Republicans, the Democrats needed to net 14 Senate seats.
Republicans maintained control of the Iowa State Senate following the 1940 general election with the balance of power shifting to Republicans holding 45 seats and Democrats having 5 seats (a net gain of 7 seats for Republicans).
| State Senate District | Incumbent | Party | Elected Senator | Party | ||
|---|---|---|---|---|---|---|
| 2nd | Sanford Zeigler | Rep | Sanford Zeigler | Rep | ||
| 3rd | Hugh G. Guernsey | Dem | Dewey Emmitt Goode | Rep | ||
| 4th | Harold V. Levis | Rep | Clarence L. Clark | Rep | ||
| 5th | Howard W. Edwards | Rep | Stephen Ray Emerson | Rep | ||
| 6th | Ole John Kirketeg | Rep | William Oliver Turner | Rep | ||
| 8th | Kenneth A. Evans | Rep | Kenneth A. Evans | Rep | ||
| 11th | William S. Beardsley | Rep | Floyd Arden Jones | Rep | ||
| 14th | Albert Earl Augustine | Dem | Albert Earl Augustine | Dem | ||
| 15th | Hugh W. Lundy | Rep | Hugh W. Lundy | Rep | ||
| 16th | Ora E. Husted | Rep | Harry Samuel Love | Rep | ||
| 17th | George M. Hopkins | Rep | Ai Miller | Rep | ||
| 19th | Morris W. Moore | Dem | De Vere Watson | Rep | ||
| 23rd | Frank E. Ellis | Dem | DuFay D. Fuller | Rep | ||
| 24th | Henry Delbert Miller | Dem | Marion Claire Hamiel | Rep | ||
| 25th | Frederick Conrad Schadt | Rep | Leroy Samuel Mercer | Dem | ||
| 26th | Frank C. Byers | Rep | Frank C. Byers | Rep | ||
| 27th | Edward Joseph Breen | Dem | Charles V. Findlay | Rep | ||
| 28th | Benjamin Chase Whitehill | Rep | Benjamin Chase Whitehill | Rep | ||
| 31st | Lant H. Doran | Rep | John R. Hattery | Rep | ||
| 32nd | Linus Forsling | Rep | Robert Prentis Munger | Rep | ||
| 33rd | George L. Parker | Rep | Irving D. Long | Rep | ||
| 36th | Martin X. Geske | Dem | Gerald W. Hunt | Rep | ||
| 39th | Clermont Colfax Smith | Rep | J. Kendall Lynes | Rep | ||
| 40th | Paul Palmer Stewart | Rep | Paul Palmer Stewart | Rep | ||
| 41st | Leo Elthon | Rep | Leo Elthon | Rep | ||
| 43rd | Earl M. Dean | Dem | Oscar E. Johnson | Dem | ||
| 46th | Winfred Mighell | Dem | Raymond Edward Hess | Rep | ||
| 47th | Lester S. Gillette | Dem | Robert Keir | Rep | ||
| 49th | Charles Bernard Hoeven | Rep | Jans T. "J. T." Dykhouse | Rep | ||
Source:[4]
| align=center | District 2 • District 3 • District 4 • District 5 • District 6 • District 8 • District 11 • District 14 • District 15 • District 16 • District 17 • District 19 • District 23 • District 24 • District 25 • District 26 • District 27 • District 28 • District 31 • District 32 • District 33 • District 36 • District 39 • District 40 • District 41 • District 43 • District 46 • District 47 • District 49 |