# 1970 Arizona gubernatorial election

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The 1970 Arizona gubernatorial election took place on November 3, 1970. Incumbent Governor Jack Williams ran for reelection to a third term as governor. United States Ambassador to Bolivia Raúl Héctor Castro won the Democratic nomination, and narrowly lost the general election to Williams by 1.78%. Williams was sworn into his third and final term as Governor on January 5, 1971.
Due to a constitutional amendment approved by the voters in 1968, the length of the term of Governor of Arizona was changed from two years to four years, effective with the 1970 gubernatorial election. Thus, Williams became the first Governor of Arizona to serve a 4-year term.

## Republican primary
### Candidates

* Jack Williams, incumbent Governor

### Results

Republican primary results :
| Party | Party | Candidate | Votes | % |
| | Republican | Jack Williams | 77,259 | 100.00% |
| Total votes | Total votes | Total votes | 77,259 | 100.00% |

## Democratic primary
### Candidates

* Raúl Héctor Castro, United States Ambassador to Bolivia, former United States Ambassador to El Salvador
* Jack Ross, car dealer
* George Nader, former Mayor

### Results

Democratic primary results :
| Party | Party | Candidate | Votes | % |
| | Democratic | Raúl Héctor Castro | 63,294 | 51.99% |
| | Democratic | Jack Ross | 30,921 | 25.40% |
| | Democratic | George Nader | 27,534 | 22.62% |
| Total votes | Total votes | Total votes | 121,749 | 100.00% |

## General election
### Results

Arizona gubernatorial election, 1970 :
| Party | Party | Candidate | Votes | % | ±% |
| | Republican | Jack Williams (incumbent) | 209,356 | 50.89% | −6.95% |
| | Democratic | Raúl Héctor Castro | 202,053 | 49.11% | +6.95% |
| Majority | Majority | Majority | 7,303 | 1.78% | |
| Total votes | Total votes | Total votes | 411,409 | 100.00% | |
| | Republican hold | Republican hold | Swing | -13.90% | |

### Results by county

| County | Jack Williams Republican | Jack Williams Republican | Raúl Héctor Castro Democratic | Raúl Héctor Castro Democratic | Margin | Margin | Total votes cast |
| County | # | % | # | % | # | % | Total votes cast |
| Apache | 1,745 | 50.89% | 1,684 | 49.11% | 61 | 1.78% | 3,429 |
| Cochise | 5,712 | 41.24% | 8,138 | 58.76% | -2,426 | -17.52% | 13,850 |
| Coconino | 4,305 | 49.05% | 4,471 | 50.95% | -166 | -1.89% | 8,776 |
| Gila | 2,951 | 37.55% | 4,907 | 62.45% | -1,956 | -24.89% | 7,858 |
| Graham | 2,078 | 47.00% | 2,343 | 53.00% | -265 | -5.99% | 4,421 |
| Greenlee | 822 | 26.85% | 2,239 | 73.15% | -1,417 | -46.29% | 3,061 |
| Maricopa | 133,336 | 58.01% | 96,525 | 41.99% | 36,811 | 16.01% | 229,861 |
| Mohave | 2,846 | 50.43% | 2,797 | 49.57% | 49 | 0.87% | 5,643 |
| Navajo | 4,335 | 56.56% | 3,330 | 43.44% | 1,005 | 13.11% | 7,665 |
| Pima | 32,750 | 37.22% | 55,245 | 62.78% | -22,495 | -25.56% | 87,995 |
| Pinal | 5,786 | 42.40% | 7,861 | 57.60% | -2,075 | -15.20% | 13,647 |
| Santa Cruz | 824 | 27.96% | 2,123 | 72.04% | -1,299 | -44.08% | 2,947 |
| Yavapai | 7,052 | 63.28% | 4,093 | 36.72% | 2,959 | 26.55% | 11,145 |
| Yuma | 4,814 | 43.33% | 6,297 | 56.67% | -1,483 | -13.35% | 11,111 |
| Totals | 209,356 | 50.89% | 202,053 | 49.11% | 7,303 | 1.78% | 411,409 |

#### Counties that flipped from Democratic to Republican

* Apache

#### Counties that flipped from Republican to Democratic

* Coconino