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 County results Voinovich: 50–60% 60–70% 70–80% | |||||||||||||||||
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| Elections in Ohio |
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The 1998 United States Senate election in Ohio was held November 3, 1998. It was concurrent with elections to the United States House of Representatives. Incumbent Democratic U.S Senator John Glenn decided to retire, instead of seeking a fifth term. Republican Governor George Voinovich won the open seat. [1] This was the first open-seat Senate election in Ohio for this seat since 1920.
| Poll source | Date(s) administered | Sample size [a] | Margin of error | George Voinovich (R) | Mary Boyle (D) | Undecided |
|---|---|---|---|---|---|---|
| Mason-Dixon [2] | October 25–27, 1998 | 815 (LV) | ± 3.5% | 55% | 37% | 8% |
| University of Cincinnati [2] | October 22–26, 1998 | 754 (LV) | ± 3.6% | 62% | 34% | 4% |
| University of Cincinnati [2] | October 8–18, 1998 | 540 (LV) | ± 4.2% | 62% | 34% | 4% |
| University of Cincinnati [2] | October 2–7, 1998 | 405 (LV) | ± 5.0% | 58% | 35% | 7% |
| Mason-Dixon [2] | October 2–5, 1998 | 805 (LV) | ± 3.5% | 54% | 35% | 11% |
| University of Cincinnati [2] | September 8–20, 1998 | 921 (LV) | ± 4.3% | 62% | 31% | 7% |
| Mason-Dixon [2] | September 12–14, 1998 | 817 (LV) | ± 3.5% | 56% | 28% | 16% |
| Gordon S. Black Corp. [2] | September 10–14, 1998 | 1,005 (LV) | ± 3.0% | 46% | 28% | 26% |
| University of Cincinnati [2] | May 13–27, 1998 | 560 (RV) | ± 4.0% | 57% | 34% | 9% |
| Mason-Dixon [2] | April 26–28, 1998 | 808 (LV) | ± 3.5% | 51% | 26% | 23% |
| ? [2] [A] | April 12–23, 1998 | 830 (A) | ± 3.5% | 52% | 29% | 19% |
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Republican | George Voinovich | 1,922,087 | 56.46% | +14.15% | |
| Democratic | Mary Boyle | 1,482,054 | 43.54% | −7.45% | |
| Majority | 440,033 | 12.92% | |||
| Turnout | 3,404,141 | 49.81% | |||
| Republican gain from Democratic | Swing | ||||
