1966 Arizona Senate election

1966 Arizona Senate election

← 1964 November 8, 1966 1968 →
All 30 seats of the Arizona Senate[a] 16 seats needed for a majority
Majority party Minority party   Party Republican Democratic Seats before 2 26 Seats after 16 14 Seat change 14 12
Senate President before election Clarence L. Carpenter[2] Democratic Elected Senate President Marshall Humphrey[3] Republican

Elections in Arizona
Federal government Presidential elections 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 primaries Democratic 2004 2008 2016 2020 2024 Republican 2008 2012 2016 2024 U.S. Senate elections 1912 1914 1916 1920 1922 1926 1928 1932 1934 1938 1940 1944 1946 1950 1952 1956 1958 1962 1964 1968 1970 1974 1976 1980 1982 1986 1988 1992 1994 1998 2000 2004 2006 2010 2012 2016 2018 2020 sp 2022 2024 2028 U.S. House of Representatives elections 1911 1912 1914 1916 1918 1920 1922 1924 1926 1928 1930 1932 1933 AL sp 1934 1936 1938 1940 1942 1944 1946 1948 1950 1952 1954 1956 1958 1960 1961 2nd sp 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1991 2nd sp 1992 1994 1996 1998 2000 2002 2004 2006 8th 2008 2010 2012 8th sp 2014 2016 2018 8th sp 2020 2022 2024
State government State elections 2006 2010 2014 2016 2018 2020 2022 2024 Gubernatorial elections 1911 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 1974 1978 1982 1986 1990 1994 1998 2002 2006 2010 2014 2018 2022 2026 Secretary of State elections 2014 2018 2022 Attorney General elections 2018 2022 Treasurer elections 2022 Superintendent elections 2018 2022 Senate elections 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 2024 House of Representatives elections 1956 1958 1960 1962 1964 1966 1968 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 1990 1992 2006 2018 2020 2022 2024
Ballot measures List of Arizona ballot propositions 2000 203 2004 200 2006 107 204 207 2008 102 2010 100 203 2020 207
Phoenix Mayoral elections 2011 2015 2018–19 (sp) 2020 2024
Tucson Mayoral elections 1991 1995 1999 2003 2007 2011 2015 2019 2023
Other localities Gilbert 2012 Glendale 2012 2016 Maricopa County 2024 Mesa 2008 2012 2020 2024 Scottsdale 2008 2012
v t e

The 1966 Arizona Senate election was held on November 8, 1966. Voters elected all 30 members of the Arizona Senate to serve two-year terms. Following the landmark Reynolds v. Sims (1964) US Supreme Court decision, every state had to redraw state electoral districts to be approximately equal in population. Before Reynolds, the Arizona Senate consisted of 28 members with two elected Senators from each of the state's 14 counties. After the ruling, the Arizona Senate shifted to electoral districts.^[4]

Primary elections were held on September 13, 1966.^[5]

Prior to the elections, the Democrats held a supermajority of 26 seats over the 2 Republican seats.

Following the election, Republicans flipped control of the chamber and took a majority of 16 Republicans to 14 Democrats, a net gain of 14 seats for Republicans.^[6]

The newly elected senators served in the 28th Arizona State Legislature.

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