# 1970 Iowa Senate election

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The 1970 Iowa State Senate elections took place as part of the biennial 1970 United States elections. Iowa voters elected state senators in 27 of the state senate's 50 districts. Due to redistricting following the amending of the Iowa Constitution in 1968 mandating single-member districts, the Iowa Senate downsized from 61 to 50 members following the 1970 election. State senators typically serve four-year terms in the Iowa State Senate.
The Iowa General Assembly provides statewide maps of each district. To compare the effect of the 1968 redistricting process on the location of each district, contrast the previous map with the map used for 1970 elections.
The primary election on June 2, 1970 determined which candidates appeared on the November 3, 1970 general election ballot. Primary election results can be obtained here. General election results can be obtained here.
Following the previous election, Republicans had control of the Iowa state Senate with 45 seats to Democrats' 16 seats. In June 1969, a special election in district 18 resulted in Sen. Orr flipping a seat in favor of the Democrats. Therefore, on election day in November 1970, Republicans controlled 44 seats and Democrats had 17.
To claim control of the chamber from Republicans, the Democrats needed to net 9 Senate seats.
Republicans maintained control of the Iowa State Senate following the 1970 general election with the balance of power shifting to Republicans holding 38 seats and Democrats having 12 seats (a net loss of 6 seats for Republicans and loss of 5 seats for the Democrats).

## Summary of Results

* The Iowa Constitution was amended in 1968 and required transitioning to single-member districts. Following the 1970 elections, the total number of state Senators fell from 61 to 50 members. 27 districts were up for election in 1970.
* An asterisk (*) after a Senator's name indicates they were an incumbent in a new district number due to redistricting.
* Italicized district numbers indicate holdover Senators who were not up for election in 1970, but were shifted to new district numbers in the middle of their terms. These districts did not hold elections in 1970.
| State Senate District | Incumbent | Party | Party | Elected Senator | Party |
| 1st | Wilson Lloyd Davis | | Rep | Lucas DeKoster* | Rep |
| 2nd | Charles George Mogged | | Rep | Marvin Wesley Smith* | Rep |
| 3rd | Donald Sherman McGill | | Dem | Wayne D. Keith* | Rep |
| 4th | Quentin V. Anderson | | Rep | Herbert Luther "H.L." Ollenburg* | Rep |
| 5th | James E. Briles | | Rep | Vernon Kyhl* | Rep |
| 6th | Earl G. Bass | | Rep | George L. Shawver | Rep |
| 7th | Robert R. Dodds | | Dem | Floyd Gilley* | Rep |
| 8th | Richard Lytle Stephens | | Rep | S. J. Brownlee* | Rep |
| 9th | Gene W. Glenn | | Dem | Leigh Raymond Curran* | Rep |
| 10th | Bass Van Gilst | | Dem | Ralph Wilson Potter* | Rep |
| 11th | Charles O. Laverty | | Rep | Charles K. Sullivan* | Rep |
| 12th | Glen E. Bortell | | Rep | Alden J. Erskine* | Rep |
| 13th | Thomas J. Frey | | Rep | John Wesley Graham | Rep |
| 13th | James W. Griffin | | Rep | John Wesley Graham | Rep |
| 14th | W. R. Rabedeaux | | Rep | Arthur A. Neu* | Rep |
| 15th | Edward E. Nicholson | | Rep | C. Joseph Coleman* | Dem |
| 15th | Harold A. Thordsen | | Rep | C. Joseph Coleman* | Dem |
| 16th | Roger John Shaff | | Rep | James A. Potgeter* | Rep |
| 17th | Minnette Doderer | | Dem | Rudy Van Drie | Rep |
| 18th | Joann Yessler Orr | | Dem | John L. Mowry* | Rep |
| 19th | Eugene Marshall Hill | | Dem | Francis L. Messerly* | Rep |
| 20th | William F. Denman | | Dem | W. Charlene Conklin* | Rep |
| 20th | Lee H. Gaudineer | | Dem | W. Charlene Conklin* | Rep |
| 20th | George E. O'Malley | | Dem | W. Charlene Conklin* | Rep |
| 20th | William D. Palmer | | Dem | W. Charlene Conklin* | Rep |
| 20th | William J. "Bill" Reichardt | | Dem | W. Charlene Conklin* | Rep |
| 21st | Edwin Alan Shirley | | Dem | Charles F. Balloun* | Rep |
| 22nd | James F. Schaben | | Dem | Cloyd E. Robinson | Dem |
| 23rd | Clifton C. Lamborn | | Rep | Tom Riley | Rep |
| 24th | Ernest Kosek | | Rep | Clifton C. Lamborn* | Rep |
| 24th | Ralph Wilson Potter | | Rep | Clifton C. Lamborn* | Rep |
| 24th | Jesse Donald Weimer | | Dem | Clifton C. Lamborn* | Rep |
| 25th | Charles F. Balloun | | Rep | John M. Walsh* | Rep |
| 26th | John L. Mowry | | Rep | Gene V. Kennedy | Dem |
| 27th | Pearle P. DeHart | | Rep | James F. Schaben* | Dem |
| 28th | R. Dean Arbuckle | | Rep | R. Dean Arbuckle | Rep |
| 29th | Arthur A. Neu | | Rep | Reinhold O. Carlson | Rep |
| 30th | Andrew G. Frommelt | | Dem | William D. Palmer* | Dem |
| 30th | John M. Walsh | | Rep | William D. Palmer* | Dem |
| 31st | Kenneth Lawrence Parker | | Rep | George F. Milligan | Rep |
| 32nd | W. Charlene Conklin | | Rep | Lee H. Gaudineer* | Dem |
| 32nd | Chester O. Hougen | | Rep | Lee H. Gaudineer* | Dem |
| 32nd | Francis L. Messerly | | Rep | Lee H. Gaudineer* | Dem |
| 33rd | James A. Potgeter | | Rep | John E. Tapscott | Dem |
| 34th | Hugh H. Clarke | | Rep | Eugene Marshall Hill* | Dem |
| 35th | C. Joseph Coleman | | Dem | Minnette Doderer* | Dem |
| 36th | Elmer F. Lange | | Rep | W. R. Rabedeaux* | Rep |
| 37th | Alden J. Erskine | | Rep | Roger John Shaff* | Rep |
| 37th | Charles K. Sullivan | | Rep | Roger John Shaff* | Rep |
| 38th | Leslie C. Klink | | Rep | Edward E. Nicholson* | Rep |
| 39th | Floyd Gilley | | Rep | Harold A. Thordsen* | Rep |
| 40th | Robert R. Rigler | | Rep | James W. Griffin* | Rep |
| 41st | Vernon Kyhl | | Rep | Earl G. Bass* | Rep |
| 42nd | Leigh Raymond Curran | | Rep | James E. Briles* | Rep |
| 43rd | Herbert Luther "H.L." Ollenburg | | Rep | John C. Rhodes | Rep |
| 44th | Wayne D. Keith | | Rep | Bass Van Gilst* | Dem |
| 45th | S. J. Brownlee | | Rep | Richard Lytle Stephens* | Rep |
| 46th | J. Leslie Leonard | | Rep | Charles Peter Miller | Dem |
| 47th | J. Henry Lucken | | Rep | Charles O. Laverty* | Rep |
| 48th | Marvin Wesley Smith | | Rep | Quentin V. Anderson* | Rep |
| 49th | Lucas DeKoster | | Rep | Gene W. Glenn* | Dem |
| 50th | Newly created district | Newly created district | Newly created district | Wilson Lloyd Davis* | Rep |
Source:

## Detailed Results

* Reminder: A change to the Iowa Constitution required transitioning to all single-member districts from 1970 onward.
* Note: If a district does not list a primary, then that district did not have a competitive primary (i.e., there may have only been one candidate file for that district).

### District 6

Iowa Senate, District 6 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | George L. Shawver | 1,243 | 48.1 |
| | Republican | Emil Roloff | 1,037 | 40.1 |
| | Republican | Ray Fairholm | 305 | 11.8 |
| Total votes | Total votes | Total votes | 2,585 | 100.0 |
Iowa Senate, District 6 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | George L. Shawver | 8,619 | 53.1 |
| | Democratic | Herbert J. Max | 7,605 | 46.9 |
| Total votes | Total votes | Total votes | 16,224 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 12

Iowa Senate, District 12 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Alden J. Erskine (incumbent) | 6,778 | 52.8 |
| | Democratic | Albert H. Gray | 5,742 | 44.7 |
| | American Independent | Lee E. Smith | 319 | 2.5 |
| Total votes | Total votes | Total votes | 12,839 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 13

Iowa Senate, District 13 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | J. Wesley Graham | 2,780 | 52.4 |
| | Republican | Elmer F. Lange (incumbent) | 2,526 | 47.6 |
| Total votes | Total votes | Total votes | 5,306 | 100.0 |
Iowa Senate, District 13 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | J. Wesley Graham | 8,253 | 59.6 |
| | Democratic | J. Ralph Rauch | 5,605 | 40.4 |
| Total votes | Total votes | Total votes | 13,859 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 14

Iowa Senate, District 14 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Arthur A. Neu (incumbent) | 1,865 | 59.1 |
| | Republican | Frank A. Crabb | 1,292 | 40.9 |
| Total votes | Total votes | Total votes | 3,157 | 100.0 |
Iowa Senate, District 14 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Arthur A. Neu (incumbent) | 8,563 | 62.5 |
| | Democratic | Mary Baumhover | 5,145 | 37.5 |
| Total votes | Total votes | Total votes | 13,708 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 16

Iowa Senate, District 16 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | James A. Potgeter (incumbent) | 8,135 | 59.7 |
| | Democratic | Rocco LaValle | 5,496 | 40.3 |
| Total votes | Total votes | Total votes | 13,631 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 17

Iowa Senate, District 17 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Rudy Van Drie | 8,572 | 52.7 |
| | Democratic | Barbara A. Koerber | 7,691 | 47.3 |
| Total votes | Total votes | Total votes | 16,263 | 100.0 |
| | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic |

### District 19

Iowa Senate, District 19 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Francis Messerly (incumbent) | 9,425 | 53.8 |
| | Democratic | Marvin E. Haugebak | 8,093 | 46.2 |
| Total votes | Total votes | Total votes | 17,518 | 100.0 |
| | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic |

### District 21

Iowa Senate, District 21 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Charles F. Balloun (incumbent) | 8,053 | 52.4 |
| | Democratic | Ernest Groth | 7,314 | 47.6 |
| Total votes | Total votes | Total votes | 15,367 | 100.0 |
| | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic |

### District 22

Iowa Senate, District 22 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | J. Donald Weimer (incumbent) | 10,798 | 64.1 |
| | Republican | Delmer Duffy | 6,042 | 35.9 |
| Total votes | Total votes | Total votes | 16,840 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |
* Sen. Weimer did not take his seat in district 22 after winning re-election.
Iowa Senate, District 22 Special Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Cloyd E. Robinson | 2,782 | 55.8 |
| | Republican | Jesse G. Hunter | 2,201 | 44.2 |
| Total votes | Total votes | Total votes | 4,983 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 23

Iowa Senate, District 23 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Tom Riley | 2,492 | 66.3 |
| | Republican | Ernest Kosek (incumbent) | 1,268 | 33.7 |
| Total votes | Total votes | Total votes | 3,760 | 100.0 |
Iowa Senate, District 23 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Tom Riley | 11,461 | 61.2 |
| | Democratic | John M. Ely, Jr. | 7,257 | 38.8 |
| Total votes | Total votes | Total votes | 18,718 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 24

Iowa Senate, District 24 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Clifton C. Lamborn (incumbent) | 9,260 | 58.1 |
| | Democratic | John A. Holmes | 6,675 | 41.9 |
| Total votes | Total votes | Total votes | 15,935 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 25

Iowa Senate, District 25 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | John M. Walsh (incumbent) | 10,874 | 58.0 |
| | Democratic | Andrew G. Frommelt (incumbent) | 7,865 | 42.0 |
| Total votes | Total votes | Total votes | 18,739 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 26

Iowa Senate, District 26 Democratic Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Adolph W. Elvers | 1,529 | 58.7 |
| | Democratic | Gene V. Kennedy | 1,074 | 41.3 |
| Total votes | Total votes | Total votes | 2,603 | 100.0 |
Iowa Senate, District 26 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Gene V. Kennedy | 9,192 | 56.6 |
| | Republican | Leslie C. Klink (incumbent) | 7,048 | 43.4 |
| Total votes | Total votes | Total votes | 16,240 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 27

Iowa Senate, District 27 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | William E. Darrington | 1,902 | 48.2 |
| | Republican | Thomas J. Frey (incumbent) | 1,309 | 33.1 |
| | Republican | Ernest L. Currie | 740 | 18.7 |
| Total votes | Total votes | Total votes | 3,951 | 100.0 |
Iowa Senate, District 27 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | James F. Schaben (incumbent) | 9,445 | 59.1 |
| | Republican | William E. Darrington | 6,543 | 40.9 |
| Total votes | Total votes | Total votes | 15,988 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 29

Iowa Senate, District 29 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Reinhold O. Carlson | 1,483 | 66.5 |
| | Republican | Henry R. Simpson | 746 | 33.5 |
| Total votes | Total votes | Total votes | 2,229 | 100.0 |
Iowa Senate, District 29 Democratic Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Dan L. Johnston | 1,576 | 45.4 |
| | Democratic | Charles H. Day | 1,204 | 34.7 |
| | Democratic | Ralph P. Mascaro | 690 | 19.9 |
| Total votes | Total votes | Total votes | 3,470 | 100.0 |
Iowa Senate, District 29 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Reinhold O. Carlson | 9,646 | 49.9 |
| | Democratic | Dan L. Johnston | 9,317 | 48.2 |
| | American Independent | James W. Parker | 375 | 1.9 |
| Total votes | Total votes | Total votes | 19,338 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 31

Iowa Senate, District 31 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | George F. Milligan | 11,486 | 61.6 |
| | Democratic | Howard C. Reppert, Jr. | 7,164 | 38.4 |
| Total votes | Total votes | Total votes | 18,650 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 33

Iowa Senate, District 33 Democratic Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | John Tapscott | 2,239 | 55.3 |
| | Democratic | Jack E. Woods | 1,808 | 44.7 |
| Total votes | Total votes | Total votes | 4,047 | 100.0 |
Iowa Senate, District 33 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | John Tapscott | 7,591 | 67.4 |
| | Republican | Joseph B. Joyce | 3,664 | 32.6 |
| Total votes | Total votes | Total votes | 11,255 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 34

Iowa Senate, District 34 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Martin O. O'Connor | 1,732 | 66.5 |
| | Republican | Charles V. Dunham | 874 | 33.5 |
| Total votes | Total votes | Total votes | 2,606 | 100.0 |
Iowa Senate, District 34 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Eugene M. Hill (incumbent) | 8,509 | 52.7 |
| | Republican | Martin O. O'Connor | 7,640 | 47.3 |
| Total votes | Total votes | Total votes | 16,149 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 36

Iowa Senate, District 36 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | W. R. Rabedeaux (incumbent) | 4,137 | 62.1 |
| | Republican | William B. Norton | 2,530 | 37.9 |
| Total votes | Total votes | Total votes | 6,667 | 100.0 |
Iowa Senate, District 36 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | W. R. Rabedeaux (incumbent) | 7,146 | 55.9 |
| | Democratic | W. Minard Thomas | 5,644 | 44.1 |
| Total votes | Total votes | Total votes | 12,790 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 37

Iowa Senate, District 37 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Roger J. Shaff (incumbent) | 7,993 | 53.6 |
| | Democratic | Robert W. Burke | 6,933 | 46.4 |
| Total votes | Total votes | Total votes | 14,926 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 38

Iowa Senate, District 38 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Edward E. Nicholson (incumbent) | 11,424 | 100.0 |
| Total votes | Total votes | Total votes | 11,424 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 41

Iowa Senate, District 41 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Earl Bass (incumbent) | 2,409 | 42.1 |
| | Republican | Leroy S. Miller | 1,908 | 33.4 |
| | Republican | Conrad Ossian | 1,403 | 24.5 |
| Total votes | Total votes | Total votes | 5,720 | 100.0 |
Iowa Senate, District 41 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Earl Bass (incumbent) | 9,123 | 69.7 |
| | Democratic | Jacky Adams | 3,973 | 30.3 |
| Total votes | Total votes | Total votes | 13,096 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 43

Iowa Senate, District 43 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | John C. Rhodes | 1,915 | 54.3 |
| | Republican | Glen E. Bortell (incumbent) | 1,614 | 45.7 |
| Total votes | Total votes | Total votes | 3,529 | 100.0 |
Iowa Senate, District 43 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | John C. Rhodes | 8,710 | 51.4 |
| | Democratic | Alan Shirley (incumbent) | 8,112 | 47.8 |
| | American Independent | William R. Kuhns | 138 | 0.8 |
| Total votes | Total votes | Total votes | 16,960 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 45

Iowa Senate, District 45 Republican Primary Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Richard L. Stephens (incumbent) | 3,597 | 50.8 |
| | Republican | Charles G. Mogged (incumbent) | 3,488 | 49.2 |
| Total votes | Total votes | Total votes | 7,085 | 100.0 |
Iowa Senate, District 45 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Richard L. Stephens (incumbent) | 7,923 | 56.5 |
| | Democratic | William Stammerman | 5,918 | 42.2 |
| | American Independent | Ernest Beachy | 189 | 1.3 |
| Total votes | Total votes | Total votes | 14,030 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 46

Iowa Senate, District 46 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Charles P. Miller | 8,769 | 53.3 |
| | Republican | Milton C. Titus | 7,683 | 46.7 |
| Total votes | Total votes | Total votes | 16,452 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 49

Iowa Senate, District 49 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Gene W. Glenn (incumbent) | 8,779 | 55.7 |
| | Republican | Russell W. Harper | 6,792 | 43.1 |
| | American Independent | Phil Darner | 192 | 1.2 |
| Total votes | Total votes | Total votes | 15,763 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 50

Iowa Senate, District 50 General Election, 1970 :
| Party | Party | Candidate | Votes | % |
| | Republican | Wilson L. Davis (incumbent) | 8,469 | 52.4 |
| | Democratic | Adrian Brinck | 7,703 | 47.6 |
| Total votes | Total votes | Total votes | 16,172 | 100.0 |
* 1 2 Minority Leader Frommelt was redistricted from district 30 to 25 and lost re-election against another incumbent, Senator John M. Walsh, who had also been redistricted from district 30 to 25.
* 1 2 3 Republican Senator Kenneth Benda resigned and was replaced by Democratic Senator Joann Yessler Orr in district 18 following a special election on June 20, 1969.
* 1 2 3 4 The overall size of the Iowa Senate decreased from 61 to 50 members, so both parties saw a decrease in size following the election of 1970.
* ↑ Except Sen. Arbuckle, who stayed in the same district number, the 28th, both before and after the redistricting process and was not up for election.
* ↑ Redistricted from district 49 to 1.
* ↑ Redistricted from district 48 to 2.
* ↑ Redistricted from district 44 to 3.
* ↑ Redistricted from district 43 to 4.
* ↑ Redistricted from district 41 to 5.
* ↑ Redistricted from district 39 to 7.
* ↑ Redistricted from district 45 to 8.
* ↑ Redistricted from district 42 to 9.
* ↑ Redistricted from district 24 to 10.
* ↑ Redistricted from district 37 to 11.
* 1 2 Redistricted from district 37 to 12.
* 1 2 3 Redistricted from district 29 to 14.
* ↑ Redistricted from district 35 to 15.
* 1 2 Redistricted from district 33 to 16.
* ↑ Redistricted from district 26 to 18.
* 1 2 Redistricted from district 32 to 19.
* ↑ Redistricted from district 32 to 20.
* 1 2 Redistricted from district 25 to 21.
* 1 2 3 Democratic Senator Jesse Donald Weimer was redistricted from district 24 to 22 and Weimer won the 22nd district general election in November 1970. However, he did not take office. In a special election in December, Democrat Cloyd E. Robinson won and kept the seat for the Democratic Party.
* 1 2 Redistricted from district 23 to 24. Also note, district 24 transitioned from a 3-member district (2 Republicans & 1 Democrat) to single-member district (1 Republican).
* 1 2 Redistricted from district 30 to 25.
* 1 2 Redistricted from district 22 to 27.
* ↑ Redistricted from district 20 to 30. Also note, district 30 transitioned from a 2-member district (1 Republican & 1 Democrat) to single-member district (1 Democrat).
* ↑ Redistricted from district 20 to 32. Also note, district 32 transitioned from a 3-member district (3 Republicans) to single-member district (1 Democrat).
* 1 2 Redistricted from district 19 to 34.
* ↑ Redistricted from district 17 to 35.
* 1 2 3 Redistricted from district 14 to 36.
* 1 2 Redistricted from district 16 to 37. Also note, district 37 transitioned from a 2-member district (2 Republicans) to single-member district (1 Republican).
* 1 2 Redistricted from district 15 to 38.
* ↑ Redistricted from district 15 to 39.
* ↑ Redistricted from district 13 to 40.
* 1 2 3 Redistricted from district 6 to 41.
* ↑ Redistricted from district 5 to 42.
* ↑ Redistricted from district 10 to 44.
* 1 2 3 Redistricted from district 8 to 45.
* ↑ Redistricted from district 11 to 47.
* ↑ Redistricted from district 4 to 48.
* 1 2 Redistricted from district 9 to 49.
* 1 2 Redistricted from district 1 to 50.
* ↑ Redistricted from district 36 to 13.
* ↑ Redistricted from district 24 to 22.
* ↑ Redistricted from district 24 to 23.
* ↑ Redistricted from district 38 to 26.
* ↑ Redistricted from district 13 to 27.
* ↑ Redistricted from district 12 to 43.
* ↑ Redistricted from district 21 to 43.
* ↑ Redistricted from district 2 to 45.