1966 Arizona Senate election
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.
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All 30 seats of the Arizona Senate 16 seats needed for a majority | ||||||||||||||||
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| Elections in Arizona |
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Primary elections were held on September 13, 1966.
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.
The newly elected senators served in the 28th Arizona State Legislature.