1970 general · November 3, 1970
1970 Iowa State Senate election results, district by district
Every Iowa State Senate district in the 1970 general election: winners, margins, unopposed seats and seats that changed party.
Seats after the election
Republicans controlled the chamber · 50 seats
After the electionD 12 · R 38
Races27
Changed party6
Unopposed4%1 races
Incumbents defeated3
Every district
D 7 · R 20
| Race | Winner | Won by | Notes |
|---|---|---|---|
| SD-6 | George L. Shawver (R) | 6.2 | |
| SD-12 | Alden J. Erskine (R) | 8.1 | |
| SD-13 | J. Wesley Graham (R) | 19.1 | |
| SD-14 | Arthur A. Neu (R) | 24.9 | |
| SD-16 | James A. Potgeter (R) | 19.4 | |
| SD-17 | Rudy Vandrie (R) | 5.4 | Flipped |
| SD-19 | Francis Messerly (R) | 7.6 | |
| SD-21 | Charles F. Balloun (R) | 4.8 | Flipped |
| SD-22 | J. Donald Weimer (D) | 28.2 | |
| SD-23 | Tom Riley (R) | 22.5 | |
| SD-24 | Clifton C. Lamborn (R) | 16.2 | Flipped |
| SD-25 | John M. Walsh (R) | 16.1 | Incumbent lost |
| SD-26 | Gene V. Kennedy (D) | 13.2 | FlippedIncumbent lost |
| SD-27 | James F. Schaben (D) | 18.2 | |
| SD-29 | Reinhold O. Carlson (R) | 1.7 | |
| SD-31 | George F. Milligan (R) | 23.2 | |
| SD-33 | John Tapscott (D) | 34.9 | |
| SD-34 | Eugene M. Hill (D) | 5.4 | |
| SD-36 | W. R. Rabedeaux (R) | 11.7 | |
| SD-37 | Roger J. Shaff (R) | 7.1 | |
| SD-38 | Edward E. Nicholson (R) | Unopposed | |
| SD-41 | Earl Bass (R) | 39.3 | |
| SD-43 | John C. Rhodes (R) | 3.5 | Incumbent lost |
| SD-45 | Richard L. Stephens (R) | 14.3 | |
| SD-46 | Charles P. Miller (D) | 6.6 | Flipped |
| SD-49 | Gene W. Glenn (D) | 12.6 | Flipped |
| SD-50 | Wilson L. Davis (R) | 4.7 |
Iowa State Senate
Results are each source's final count; margins are the winner's lead over the runner-up in points of the vote. Source: Harvard Dataverse / Carl Klarner