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County results Herbert: 50–60% 60–70% 70–80% Brown: 50–60% | |||||||||||||||||
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| Elections in Ohio |
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The 1966 Ohio State Treasurer election was held on November 8, 1966, to elect the Ohio State Treasurer. Primaries were held on May 3, 1966. Republican incumbent Ohio State Treasurer John D. Herbert won re-election in a landslide, defeating Democrat Eldon Brown by seventeen percentage points.
Herbert won renomination unopposed.
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | John D. Herbert | 543,575 | 100.00% | |
| Total votes | 543,575 | 100.00% | ||
Eldon Brown easily won the Democratic nomination over Michael E. Entinger, winning by 20 percentage points.
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | Eldon Brown | 280,575 | 60.02% | |
| Democratic | Michael E. Entinger | 186,881 | 39.98% | |
| Total votes | 467,456 | 100.00% | ||
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Republican | John D. Herbert | 1,567,094 | 58.85% | +8.26 | |
| Democratic | Eldon Brown | 1,095,756 | 41.15% | −8.26 | |
| Total votes | 2,662,850 | 100.00% | |||
| Republican hold | |||||