For related races, see 1958 United States gubernatorial elections.
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 County resultsSmylie: 50–60% 60–70% 70–80% Derr: 50–60% 60–70% 70–80% | |||||||||||||||||
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The 1958 Idaho gubernatorial election was held on November 4. Incumbent Republican Robert E. Smylie defeated Democratic nominee Alfred M. Derr with 50.96% of the vote.
Since changing to four-year term for governor beginning with the 1946 election, this was the first time the incumbent was permitted to run for re-election, due to a change in the state's constitution, approved by voters in November 1956. The last incumbent to be re-elected was C. Ben Ross, who won a third two-year term in 1934.
Primary elections
Primary elections were held on August 12, 1958.
Democratic primary
Candidates
- Alfred M. Derr, Clark Fork state senator
- H. Max Hanson, Fairfield state senator
- John Glasby, Mountain Home, former state party chairman
- Omar Maine, Parma farmer
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Alfred M. Derr | 25,599 | ||
| Democratic | H. Max Hanson | 25,477 | ||
| Democratic | John Glasby | 21,207 | ||
| Democratic | Omar Maine | 1,929 | ||
| Total votes | 48,613 | 100.00 | ||
Republican primary
Candidate
- Robert E. Smylie, incumbent governor (unopposed)
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Robert E. Smylie (incumbent) | 41,568 | 100.00 | |
| Total votes | 41,568 | 100.00 | ||
General election
Candidates
- Robert E. Smylie, Republican
- Alfred M. Derr, Democratic
Results
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Republican | Robert E. Smylie (incumbent) | 121,810 | 50.96% | ||
| Democratic | Alfred M. Derr | 117,236 | 49.04% | ||
| Majority | 4,574 | ||||
| Turnout | 239,046 | ||||
| Republican hold | Swing | ||||
References
- "Idaho voters adopt three amendments". Lewiston Morning Tribune. Associated Press. November 7, 1956. p. 1.
- Corlett, John (March 31, 1963). "It's mystery why law barring self-succession not repealed". Lewiston Morning Tribune. p. 5.
- ^ Guide to U.S. elections - CQ Press, Congressional Quarterly, inc. CQ Press. 2005. ISBN 9781568029818. Retrieved April 20, 2019.
- "Answers to tax problem, state's future claimed by gubernatorial hopefuls". Lewiston Morning Tribune. Associated Press. August 10, 1958. p. 1.
- "Tuesday's voting may settle question of legalized casinos". Lewiston Morning Tribune. Associated Press. August 10, 1958. p. 2.
- "Derr takes 347-vote lead in governor race". Lewiston Morning Tribune. Associated Press. August 13, 1958. p. 1.
- "Derr still ahead but won't claim victory". Lewiston Morning Tribune. Associated Press. August 14, 1958. p. 1.
- Cook, Rhodes (November 5, 2013). America Votes 30: 2011-2012, Election Returns by State - Rhodes Cook. ISBN 9781452290171. Retrieved April 20, 2019.
| (1957 ←) 1958 United States elections (→ 1959) | |
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