# 1964 Iowa Senate election

Elections in Iowa :
Federal government
U.S. Presidential elections
1848
1852
1856
1860
1864
1868
1872
1876
1880
1884
1888
1892
1896
1900
1904
1908
1912
1916
1920
1924
1928
1932
1936
1940
1944
1948
1952
1956
1960
1964
1968
1972
1976
1980
1984
1988
1992
1996
2000
2004
2008
2012
2016
2020
2024
Presidential caucuses
Democratic
1976
1980
1984
1992
2000
2004
2008
2012
2016
2020
2024
Republican
1980
1996
2000
2008
2012
2016
2020
2024
U.S. Senate elections
1848
1849
1852
1855
1857 sp
1858
1860
1864
1866
1866 sp
1870
1870 sp
1872
1878
1882
1882 sp
1884
1888
1890
1894
1896
1900
1902
1902 sp
1907
1908
1908 sp
1909
1911 sp
1913
1914
1918
1920
1922 sp
1924
1926
1926 sp
1930
1932
1936
1936 sp
1938
1942
1944
1948
1950
1954
1956
1960
1962
1966
1968
1972
1974
1978
1980
1984
1986
1990
1992
1996
1998
2002
2004
2008
2010
2014
2016
2020
2022
2026
2028
U.S. House of Representatives elections
1846
1847
1848
1850
1st sp
1852
1854
1856
1858
1860
1861
1st sp
1862
1864
1866
1868
1870
2nd sp
1872
1874
1876
1878
1879
5th sp
1880
1882
1883
6th sp
1884
7th sp
1886
1888
1890
7th sp
1892
1894
1896
1898
1900
10th sp
1902
1904
1906
1908
1910
1911
9th sp
1912
11th sp
1914
2nd sp
1916
1918
1920
1921
5th sp
1922
1923
8th sp
1924
1926
1928
9th sp
1930
1932
1934
1936
1938
1940
6th sp
1942
9th sp
1944
1946
1948
1950
1952
1954
1956
1958
1959
4th sp
1960
1962
1964
1966
1968
1970
1972
1974
1976
1978
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
2024 :
State government
General elections
2009
2014
2016
2018
2020
2022
Gubernatorial elections
1846
1850
1854
1857
1859
1861
1863
1865
1867
1869
1871
1873
1875
1877
1879
1881
1883
1885
1887
1889
1891
1893
1895
1897
1899
1901
1903
1906
1908
1910
1912
1914
1916
1918
1920
1922
1924
1926
1928
1930
1932
1934
1936
1938
1940
1942
1944
1946
1948
1950
1952
1954
1956
1958
1960
1962
1964
1966
1968
1970
1972
1974
1978
1982
1986
1990
1994
1998
2002
2006
2010
2014
2018
2022
2026
Secretary of State elections
2022
Attorney General elections
2014
2018
2022
Senate elections
1846
1848
1850
1852
1854
1856
1857
1859
1861
1863
1865
1867
1869
1871
1873
1875
1877
1879
1881
1883
1885
1887
1889
1891
1893
1895
1897
1899
1901
1903
1906
1908
1910
1912
1914
1916
1918
1920
1922
1924
1926
1928
1930
1932
1934
1936
1938
1940
1942
1944
1946
1948
1950
1952
1954
1956
1958
1960
1962
1964
1966
1968
1970
1972
1974
1976
1978
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
2002
2004
2006
2008
2010
2012
2014
2016
2018
2020
2022
Specials
House of Representatives elections
2006
2008
2010
2012
2014
2016
2018
2020
2022
Territorial Council elections
1838
1839
1840
1841
1842
1843
1844
1845 :
Ballot measures
2020
Question 1
2022
Amendment 1 :
Cedar Rapids
Mayoral elections
2021 :
Des Moines
Mayoral elections
1997 sp
1999
2003
2007
2011
2015
2019
2023 :
vte :
The 1964 Iowa State Senate elections took place as part of the biennial 1964 United States elections. Iowa voters elected state senators in 39 of the state senate's 59 districts. At that time, the Iowa Senate still had several multi-member districts. State senators serve four-year terms in the Iowa State Senate.
The Iowa Senate was expanded from 50 to 59 members and new district maps were drawn for the 1964 election. The Iowa General Assembly provides statewide maps of each district. To compare the effect of the 1964 redistricting process on the location of each district, contrast the previous map with the map used for 1964 elections.
The primary election on June 1, 1964, determined which candidates appeared on the November 3, 1964 general election ballot.
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 18 Senate seats.
Democrats flipped control of the Iowa State Senate following the 1964 general election with the balance of power shifting to Democrats holding 34 seats and Republicans having 25 seats (a net gain of 22 seats for Democrats and net loss of 13 seats for Republicans).

## Summary of Results

* Note: The 20 holdover Senators not up for re-election are listed here with asterisks (*).
| State Senate District | Incumbent | Party | Party | Incoming Senator | Party |
| 1st | Seeley G. Lodwick | | Rep | Seeley G. Lodwick* | Rep |
| 2nd | Dewey Blake Phelps | | Rep | Max E. Reno | Dem |
| 3rd | Joe N. Wilson | | Rep | Don S. McGill | Dem |
| 4th | Howard Vincent | | Rep | Franklin S. Main | Dem |
| 5th | Franklin S. Main | | Dem | James E. Briles | Rep |
| 6th | Orval C. Walter | | Dem | Charles Vernon "Vern" Lisle* | Rep |
| 6th | Charles Vernon "Vern" Lisle | | Rep | Charles Vernon "Vern" Lisle* | Rep |
| 7th | Robert R. Dodds | | Dem | Robert R. Dodds* | Dem |
| 8th | Clifford M. Vance | | Rep | Clifford M. Vance* | Rep |
| 8th | Edward Anderson Wearin | | Rep | Clifford M. Vance* | Rep |
| 9th | Jacob B. "Jake" Mincks | | Dem | Jacob B. "Jake" Mincks* | Dem |
| 10th | Richard Lytle Stephens | | Rep | Richard Lytle Stephens* | Rep |
| 11th | J. Louis Fisher | | Rep | Bass Van Gilst | Dem |
| 12th | Vacant | Vacant | Vacant | Stanley Heaberlin | Dem |
| 13th | Vacant | Vacant | Vacant | Joseph B. Flatt | Rep |
| 14th | John L. Campbell | | Rep | John David Shoeman* | Rep |
| 14th | John David Shoeman | | Rep | John David Shoeman* | Rep |
| 15th | Vera H. Shivvers | | Rep | Gilbert E. Klefstad | Dem |
| 16th | Joseph B. Flatt | | Rep | David M. Stanley | Rep |
| 17th | Harry L. Cowden | | Rep | Joseph W. Cassidy | Dem |
| 17th | Jack Schroeder | | Rep | Jack Schroeder* | Rep |
| 18th | David O. Shaff | | Rep | David O. Shaff* | Rep |
| 19th | Richard C. Turner | | Rep | Howard Tabor | Dem |
| 20th | Vacant | Vacant | Vacant | John M. Ely | Dem |
| 20th | Vacant | Vacant | Vacant | Tom Riley | Rep |
| 21st | Vacant | Vacant | Vacant | Robert J. Burns | Dem |
| 22nd | Robert Orville Burrows | | Rep | Robert Orville Burrows* | Rep |
| 23rd | Kenneth Benda | | Rep | Kenneth Benda* | Rep |
| 23rd | David Earl Elijah | | Rep | Kenneth Benda* | Rep |
| 24th | Jans T. Dykhouse | | Rep | Max Milo Mills | Rep |
| 25th | Eugene Marshall Hill | | Dem | Eugene Marshall Hill* | Dem |
| 25th | Daniel Clifford "D. C." Nolan | | Rep | Eugene Marshall Hill* | Dem |
| 26th | Martin Wiley | | Rep | Daryl Hallett Nims | Dem |
| 27th | C. Joseph Coleman | | Dem | Howard Reppert | Dem |
| 27th | George E. O'Malley | | Dem | George E. O'Malley* | Dem |
| 27th | Newly created subdistrict | Newly created subdistrict | Newly created subdistrict | William F. Denman | Dem |
| 28th | Howard C. Buck | | Rep | Warren J. Kruck | Dem |
| 29th | Vacant | Vacant | Vacant | Alan Shirley | Dem |
| 30th | Peter F. Hansen | | Dem | Peter F. Hansen* | Dem |
| 31st | Charles F. Griffin | | Rep | Charles F. Griffin* | Rep |
| 31st | Alvin V. Doran | | Rep | Charles F. Griffin* | Rep |
| 32nd | Andrew G. Frommelt | | Dem | Andrew G. Frommelt* | Dem |
| 32nd | Charles S. Van Eaton | | Rep | Andrew G. Frommelt* | Dem |
| 33rd | Irving D. Long | | Rep | John W. Patton | Dem |
| 34th | Robert D. Fulton | | Dem | Gene F. Condon | Dem |
| 34th | Newly created subdistrict | Newly created subdistrict | Newly created subdistrict | Francis LaVern Messerly | Rep |
| 35th | John A. Walker | | Rep | John A. Walker* | Rep |
| 36th | Adolph W. Elvers | | Dem | C. Joseph Coleman | Dem |
| 37th | Donald G. Beneke | | Rep | Donald G. Beneke* | Rep |
| 38th | Vacant | Vacant | Vacant | J. Henry Lucken | Rep |
| 39th | Vernon Kyhl | | Rep | Vincent S. Burke | Dem |
| 39th | Newly created subdistrict | Newly created subdistrict | Newly created subdistrict | James M. McNally | Dem |
| 40th | George Lindsey Scott | | Rep | Adolph W. Elvers | Dem |
| 41st | Jacob Grimstead | | Rep | Hilarius Louis "H.L." Heying | Dem |
| 42nd | Vacant | Vacant | Vacant | Vernon Kyhl | Rep |
| 43rd | Leigh Raymond Curran | | Rep | Raymond W. "R. W." Hagie | Rep |
| 44th | Robert R. Rigler | | Rep | Robert R. Rigler* | Rep |
| 45th | Leo Elthon | | Rep | Leo Elthon* | Rep |
| 46th | J. Henry Lucken | | Rep | Delbert W. Floy | Dem |
| 47th | LeRoy Getting | | Rep | John Leonard Buren | Dem |
| 48th | Vacant | Vacant | Vacant | Jack Kibbie | Dem |
| 49th | John J. Brown | | Dem | H. Kenneth Nurse | Dem |
| 50th | Vacant | Vacant | Vacant | Lucas DeKoster | Rep |
| 51st | Newly created district | Newly created district | Newly created district | Merle W. Hagedorn | Dem |
| 52nd | Newly created district | Newly created district | Newly created district | Elmer F. Lange | Rep |
| 53rd | Newly created district | Newly created district | Newly created district | Donald W. Murray | Dem |
Source:

## Detailed Results

* 39 of the 59 Iowa Senate seats were up for election in 1964.
* 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 2

Iowa Senate, District 2 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Joe N. Wilson (incumbent) | 2,164 | 58.6 |
| | Republican | William C. Ray | 1,531 | 41.4 |
| Total votes | Total votes | Total votes | 3,695 | 100.0 |
Iowa Senate, District 2 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Max E. Reno | 8,789 | 55.3 |
| | Republican | Joe N. Wilson (incumbent) | 7,102 | 44.7 |
| Total votes | Total votes | Total votes | 15,891 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 3

Iowa Senate, District 3 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Howard Vincent (incumbent) | 1,668 | 50.1 |
| | Republican | Marion M. Coons | 1,660 | 49.9 |
| Total votes | Total votes | Total votes | 3,328 | 100.0 |
Iowa Senate, District 3 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Don S. McGill | 7,673 | 53.2 |
| | Republican | Howard Vincent (incumbent) | 6,748 | 46.8 |
| Total votes | Total votes | Total votes | 14,421 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 4

Iowa Senate, District 4 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Franklin S. Main (incumbent) | 8,984 | 62.2 |
| | Republican | Joseph G. Knock | 5,463 | 37.8 |
| Total votes | Total votes | Total votes | 14,447 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 5

Iowa Senate, District 5 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | James E. Briles | 1,781 | 43.2 |
| | Republican | Willis A. McAlpin | 1,173 | 28.5 |
| | Republican | Edward A. Wearin (incumbent) | 1,165 | 28.3 |
| Total votes | Total votes | Total votes | 4,119 | 100.0 |
Iowa Senate, District 5 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | James E. Briles | 7,567 | 52.9 |
| | Democratic | Orval C. Walter (incumbent) | 6,744 | 47.1 |
| Total votes | Total votes | Total votes | 14,311 | 100.0 |
| | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic |

### District 11

Iowa Senate, District 11 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Bass Van Gilst | 8,952 | 54.4 |
| | Republican | John L. Campbell (incumbent) | 7,519 | 45.6 |
| Total votes | Total votes | Total votes | 16,471 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 12

Iowa Senate, District 12 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Vera H. Shivvers (incumbent) | 2,336 | 64.9 |
| | Republican | George D. Fischer | 1,265 | 35.1 |
| Total votes | Total votes | Total votes | 3,601 | 100.0 |
Iowa Senate, District 12 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Stanley Heaberlin | 12,020 | 56.4 |
| | Republican | Vera H. Shivvers (incumbent) | 9,243 | 43.4 |
| | Independent | Harold Lee McClintic | 50 | 0.2 |
| Total votes | Total votes | Total votes | 21,313 | 100.0 |

### District 13

Iowa Senate, District 13 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Joseph B. Flatt (incumbent) | 7,337 | 51.8 |
| | Democratic | Stanley E. Steele | 6,818 | 48.2 |
| Total votes | Total votes | Total votes | 14,155 | 100.0 |

### District 15

Iowa Senate, District 15 Democratic Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Gilbert E. Klefstad | 1,418 | 58.4 |
| | Democratic | John V. Stubblefield | 1,011 | 41.6 |
| Total votes | Total votes | Total votes | 2,429 | 100.0 |
Iowa Senate, District 15 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Gilbert E. Klefstad | 16,093 | 52.4 |
| | Republican | Richard C. Turner (incumbent) | 14,625 | 47.6 |
| Total votes | Total votes | Total votes | 30,718 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 16

Iowa Senate, District 16 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | David Stanley | 12,381 | 59.7 |
| | Democratic | Herschel Flater | 8,350 | 40.3 |
| Total votes | Total votes | Total votes | 20,731 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 17

* The 17th remained a 2-member district following the 1964 election. Subdistrict No. 1 held an election; however, Subdistrict No. 2 had a holdover Senator.
Iowa Senate, District 17 Subdistrict No. 1 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Joseph W. Cassidy | 26,083 | 54.1 |
| | Republican | Riley Dietz | 21,965 | 45.5 |
| | Independent | William A. Dare, Sr. | 190 | 0.4 |
| Total votes | Total votes | Total votes | 48,238 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 19

Iowa Senate, District 19 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Howard Tabor | 8,746 | 55.2 |
| | Republican | Roy A. Miller | 7,099 | 44.8 |
| Total votes | Total votes | Total votes | 15,845 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 20

* The 20th was a 2-member district following the 1964 election. Subdistrict No. 1 held an election for a four-year term; whereas, Subdistrict No. 2 held an election for a two-year term.
Iowa Senate, District 20 Subdistrict No. 1 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | John M. Ely, Jr. | 35,664 | 59.6 |
| | Republican | Martin Wiley (incumbent) | 24,184 | 40.4 |
| Total votes | Total votes | Total votes | 59,848 | 100.0 |
Iowa Senate, District 20 Subdistrict No. 2 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Tom Riley | 30,688 | 51.2 |
| | Democratic | Howard Morton | 29,295 | 48.8 |
| Total votes | Total votes | Total votes | 59,983 | 100.0 |

### District 21

Iowa Senate, District 21 Democratic Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Robert J. Burns | 2,533 | 49.8 |
| | Democratic | Scott Swisher | 1,300 | 25.6 |
| | Democratic | Don McComas | 878 | 17.3 |
| | Democratic | William L. Meardon | 373 | 7.3 |
| Total votes | Total votes | Total votes | 5,084 | 100.0 |
Iowa Senate, District 21 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Robert J. Burns | 12,409 | 58.5 |
| | Republican | D. C. Nolan (incumbent) | 8,789 | 41.5 |
| Total votes | Total votes | Total votes | 21,198 | 100.0 |

### District 24

Iowa Senate, District 24 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Max Milo Mills | 1,743 | 74.9 |
| | Republican | John Knudson | 584 | 25.1 |
| Total votes | Total votes | Total votes | 2,327 | 100.0 |
Iowa Senate, District 24 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Max Milo Mills | 7,788 | 51.0 |
| | Democratic | Carroll Paul | 7,494 | 49.0 |
| Total votes | Total votes | Total votes | 15,282 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 26

Iowa Senate, District 26 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | William A. Singer | 1,777 | 54.1 |
| | Republican | David A. Norris | 1,013 | 30.8 |
| | Republican | Samuel H. Thompson | 495 | 15.1 |
| Total votes | Total votes | Total votes | 3,285 | 100.0 |
Iowa Senate, District 26 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Daryl H. Nims | 9,681 | 50.02 |
| | Republican | William A. Singer | 9,675 | 49.98 |
| Total votes | Total votes | Total votes | 19,356 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 27

* The 27th was a 3-member district following the 1964 election. Subdistrict No. 1 held an election for a four-year term. Subdistrict No. 2 had a holdover Senator . Subdistrict No. 3 held an election for a two-year term.
Iowa Senate, District 27 Subdistrict No. 1 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Howard C. Reppert, Jr. | 68,894 | 65.6 |
| | Republican | Robert E. Dreher | 35,673 | 33.9 |
| | Independent | Robert W. Kernes | 557 | 0.5 |
| Total votes | Total votes | Total votes | 105,124 | 100.0 |
Iowa Senate, District 27 Subdistrict No. 3 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | William F. Denman | 65,023 | 61.5 |
| | Republican | Robert E. Mannheimer | 39,976 | 37.8 |
| | Independent | Norman W. Richardson | 693 | 0.7 |
| Total votes | Total votes | Total votes | 105,692 | 100.0 |

### District 28

Iowa Senate, District 28 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | R. K. Richardson | 2,073 | 64.4 |
| | Republican | John N. "Jack" Nystrom | 1,148 | 35.6 |
| Total votes | Total votes | Total votes | 3,221 | 100.0 |
Iowa Senate, District 28 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Warren J. Kruck | 8,101 | 50.7 |
| | Republican | R. K. Richardson | 7,889 | 49.3 |
| Total votes | Total votes | Total votes | 15,990 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 29

Iowa Senate, District 29 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Alan Shirley | 9,675 | 58.5 |
| | Republican | Kingsley M. Clarke | 6,868 | 41.5 |
| Total votes | Total votes | Total votes | 16,543 | 100.0 |

### District 33

Iowa Senate, District 33 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Kenneth L. Parker | 2,262 | 54.0 |
| | Republican | Betty A. O'Brien | 1,927 | 46.0 |
| Total votes | Total votes | Total votes | 4,189 | 100.0 |
Iowa Senate, District 33 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | John W. Patton | 8,813 | 54.9 |
| | Republican | Kenneth L. Parker | 7,238 | 45.1 |
| Total votes | Total votes | Total votes | 16,051 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 34

* The 34th was a 2-member district following the 1964 election. Subdistrict No. 1 held an election for a four-year term; however, Subdistrict No. 2 held a special election due to the resignation of holdover Senator Robert D. Fulton who was elected lieutenant governor in 1964.
Iowa Senate, District 34 Subdistrict No. 1 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Gene F. Condon | 26,958 | 54.9 |
| | Republican | Willard R. Hansen | 22,114 | 45.1 |
| Total votes | Total votes | Total votes | 49,072 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |
Iowa Senate, District 34 Subdistrict No. 2 Special Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Francis Messerly | 8,913 | 51.3 |
| | Democratic | Frederick G. White | 8,342 | 48.1 |
| | Independent | Ernest J. Seeman | 107 | 0.6 |
| Total votes | Total votes | Total votes | 17,362 | 100.0 |

### District 36

Iowa Senate, District 36 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | C. Joseph Coleman (incumbent) | 11,799 | 64.0 |
| | Republican | Fred E. Reese | 6,637 | 36.0 |
| Total votes | Total votes | Total votes | 18,436 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 38

Iowa Senate, District 38 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | J. Henry Lucken (incumbent) | 8,829 | 51.3 |
| | Democratic | Charles V. Wiley | 8,371 | 48.7 |
| Total votes | Total votes | Total votes | 17,200 | 100.0 |

### District 39

* The 39th was a 2-member district following the 1964 election. Subdistrict No. 1 held an election for a four-year term; however, Subdistrict No. 2 held an election for a two-year term.
Iowa Senate, District 39 Subdistrict No. 1 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Vincent S. Burke | 24,184 | 56.5 |
| | Republican | Charles S. Van Eaton (incumbent) | 18,432 | 43.1 |
| | Independent | Ruth E. Haafke | 168 | 0.4 |
| Total votes | Total votes | Total votes | 42,784 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |
Iowa Senate, District 39 Subdistrict No. 2 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Alden J. Erksine | 3,001 | 57.2 |
| | Republican | Harold Lum Nelson | 2,242 | 42.8 |
| Total votes | Total votes | Total votes | 5,243 | 100.0 |
Iowa Senate, District 39 Subdistrict No. 2 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | James M. McNally | 25,372 | 59.6 |
| | Republican | Alden J. Erskine | 17,222 | 40.4 |
| Total votes | Total votes | Total votes | 42,594 | 100.0 |

### District 40

Iowa Senate, District 40 Democratic Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Adolph W. Elvers (incumbent) | 1,503 | 59.7 |
| | Democratic | Lloyd G. F. Schroeder | 1,016 | 40.3 |
| Total votes | Total votes | Total votes | 2,519 | 100.0 |
Iowa Senate, District 40 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Adolph W. Elvers (incumbent) | 9,233 | 57.9 |
| | Republican | Leslie C. Klink | 6,709 | 42.1 |
| Total votes | Total votes | Total votes | 15,942 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 41

Iowa Senate, District 41 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Rodney Drewes | 1,977 | 52.0 |
| | Republican | Everett G. Scott | 1,824 | 48.0 |
| Total votes | Total votes | Total votes | 3,801 | 100.0 |
Iowa Senate, District 41 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | H. L. Heying | 11,292 | 52.9 |
| | Republican | Rodney Drewes | 10,055 | 47.1 |
| Total votes | Total votes | Total votes | 21,347 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 42

Iowa Senate, District 42 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Vernon Kyhl (incumbent) | 12,400 | 58.0 |
| | Democratic | Herbert J. Max | 8,976 | 42.0 |
| Total votes | Total votes | Total votes | 21,376 | 100.0 |

### District 43

* The 43rd held an election for a two-year term.
Iowa Senate, District 43 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | R. W. Hagie | 2,262 | 56.7 |
| | Republican | Verne A. Freie | 1,729 | 43.3 |
| Total votes | Total votes | Total votes | 3,991 | 100.0 |
Iowa Senate, District 43 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | R. W. Hagie | 6,713 | 51.7 |
| | Democratic | A. T. Keough | 6,264 | 48.3 |
| Total votes | Total votes | Total votes | 12,977 | 100.0 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

### District 46

Iowa Senate, District 46 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Delbert Floy | 11,129 | 54.0 |
| | Republican | Leigh R. Curran (incumbent) | 9,479 | 46.0 |
| Total votes | Total votes | Total votes | 20,608 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 47

Iowa Senate, District 47 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | John Leonard Buren | 5,752 | 50.3 |
| | Republican | Jacob Grimstead (incumbent) | 5,690 | 49.7 |
| Total votes | Total votes | Total votes | 11,442 | 100.0 |
| | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican | Democratic gain from Republican |

### District 48

Iowa Senate, District 48 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | John P. Kibbie | 7,097 | 58.8 |
| | Republican | Jack B. White | 4,917 | 40.7 |
| | Independent | Ray C. Haman | 61 | 0.5 |
| Total votes | Total votes | Total votes | 12,075 | 100.0 |

### District 49

Iowa Senate, District 49 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | LeRoy Getting (incumbent) | 1,952 | 61.0 |
| | Republican | Merrill H. Fritts | 1,246 | 39.0 |
| Total votes | Total votes | Total votes | 3,198 | 100.0 |
Iowa Senate, District 49 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | H. Kenneth Nurse | 6,468 | 52.1 |
| | Republican | LeRoy Getting (incumbent) | 5,956 | 47.9 |
| Total votes | Total votes | Total votes | 12,424 | 100.0 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### District 50

Iowa Senate, District 50 Republican Primary Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Lucas J. DeKoster | 3,090 | 65.1 |
| | Republican | J. T. Dykhouse (incumbent) | 1,653 | 34.9 |
| Total votes | Total votes | Total votes | 4,743 | 100.0 |
Iowa Senate, District 50 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Lucas J. DeKoster | 12,210 | 100.0 |
| Total votes | Total votes | Total votes | 12,210 | 100.0 |

### District 51

Iowa Senate, District 51 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Merle W. Hagedorn | 6,848 | 54.4 |
| | Republican | Roy J. Smith | 5,732 | 45.6 |
| Total votes | Total votes | Total votes | 12,580 | 100.0 |

### District 52

* The 52nd held an election for a two-year term.
Iowa Senate, District 52 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Republican | Elmer F. Lange | 9,140 | 52.9 |
| | Democratic | Henry C. Kitchen | 8,147 | 47.1 |
| Total votes | Total votes | Total votes | 17,287 | 100.0 |

### District 53

Iowa Senate, District 53 General Election, 1964 :
| Party | Party | Candidate | Votes | % |
| | Democratic | Donald W. Murray | 8,277 | 52.4 |
| | Republican | Angus L. Cotton | 7,509 | 47.6 |
| Total votes | Total votes | Total votes | 15,786 | 100.0 |
* 1 2 3 In 1964, the size of the Iowa state Senate increased from 50 to 59 seats.
* 1 2 Redistricted from district 5 to 4.
* ↑ The 6th transitioned from a 2- to 1-member district.
* ↑ The 8th transitioned from a 2- to 1-member district.
* 1 2 Redistricted from district 16 to 13.
* ↑ The 14th transitioned from a 2- to 1-member district.
* ↑ The 23rd transitioned from a 2- to 1-member district.
* ↑ The 25th transitioned from a 2- to 1-member district.
* 1 2 The 27th transitioned from a 2- to 3-member district.
* ↑ The 31st transitioned from a 2- to 1-member district.
* ↑ The 32nd transitioned from a 2- to 1-member district.
* 1 2 The 34th transitioned from a 1- to 2-member district.
* 1 2 Redistricted from district 27 to 36.
* 1 2 Redistricted from district 46 to 38.
* 1 2 The 39th transitioned from a 1- to 2-member district.
* 1 2 3 Redistricted from district 36 to 40.
* 1 2 Redistricted from district 39 to 42.
* ↑ The 51st district was newly created following redistricting.
* 1 2 The 52nd district was newly created following redistricting.
* ↑ The 53rd district was newly created following redistricting.
* ↑ Multi-member districts in the electoral map of 1964 elections were: 17th with 2 seats; 20th with 2 seats; 27th with 3 seats; 34th with 2 seats; and, 39th with 2 seats. Remember, in 1964, multi-member districts still existed in the Iowa Senate.
* 1 2 Redistricted from district 3 to 2.
* 1 2 Redistricted from district 4 to 3.
* ↑ Redistricted from district 8 to 5.
* ↑ Redistricted from district 6 to 5.
* ↑ Redistricted from district 14 to 11.
* 1 2 Redistricted from district 15 to 12.
* ↑ Redistricted from district 19 to 15.
* ↑ Redistricted from district 26 to 20.
* ↑ Redistricted from district 25 to 21.
* ↑ Redistricted from district 32 to 39.
* ↑ Redistricted from district 43 to 46.
* ↑ Redistricted from district 41 to 47.
* 1 2 Redistricted from district 47 to 49.
* ↑ Redistricted from district 24 to 50.