California — 1998 U.S. Senate election
Recent presidential results
Akashicstate1998 Senate electionCalifornia · U.S. SenateBoxerD+10.0
How it voted
Share of the 1998 vote
| Barbara Boxer (i) ✓Democrat | 53.1% | 4,410,056 |
|---|---|---|
| Matt FongRepublican | 43.0% | 3,575,078 |
| Ted BrownLibertarian | 1.1% | 93,926 |
1998Senate margin
D+60R+60
58 counties, each filled by 1998 D-vs-R margin. Hover any county for its result.
County-level results (58 counties) — table
| County | Winner | Margin |
|---|---|---|
| ALAMEDA, CA | Democratic | D+42.3 |
| ALPINE, CA | Republican | R+3.3 |
| AMADOR, CA | Republican | R+11.9 |
| BUTTE, CA | Republican | R+13.2 |
| CALAVERAS, CA | Republican | R+11.6 |
| COLUSA, CA | Republican | R+21.9 |
| CONTRA COSTA, CA | Democratic | D+18.2 |
| DEL NORTE, CA | Republican | R+11.0 |
| EL DORADO, CA | Republican | R+18.9 |
| FRESNO, CA | Republican | R+7.5 |
| GLENN, CA | Republican | R+30.5 |
| HUMBOLDT, CA | Democratic | D+6.4 |
| IMPERIAL, CA | Democratic | D+10.0 |
| INYO, CA | Republican | R+20.1 |
| KERN, CA | Republican | R+22.7 |
| KINGS, CA | Republican | R+10.1 |
| LAKE, CA | Democratic | D+14.6 |
| LASSEN, CA | Republican | R+27.4 |
| LOS ANGELES, CA | Democratic | D+25.1 |
| MADERA, CA | Republican | R+20.6 |
| MARIN, CA | Democratic | D+33.7 |
| MARIPOSA, CA | Republican | R+17.8 |
| MENDOCINO, CA | Democratic | D+21.9 |
| MERCED, CA | Democratic | D+0.9 |
| MODOC, CA | Republican | R+29.2 |
| MONO, CA | Republican | R+9.6 |
| MONTEREY, CA | Democratic | D+10.5 |
| NAPA, CA | Democratic | D+13.5 |
| NEVADA, CA | Republican | R+13.7 |
| ORANGE, CA | Republican | R+17.7 |
| PLACER, CA | Republican | R+19.1 |
| PLUMAS, CA | Republican | R+28.5 |
| RIVERSIDE, CA | Republican | R+3.9 |
| SACRAMENTO, CA | Democratic | D+4.6 |
| SAN BENITO, CA | Democratic | D+7.0 |
| SAN BERNARDINO, CA | Democratic | D+0.2 |
| SAN DIEGO, CA | Republican | R+3.0 |
| SAN FRANCISCO, CA | Democratic | D+53.3 |
| SAN JOAQUIN, CA | Republican | R+0.1 |
| SAN LUIS OBISPO, CA | Republican | R+7.8 |
| SAN MATEO, CA | Democratic | D+29.3 |
| SANTA BARBARA, CA | Democratic | D+2.8 |
| SANTA CLARA, CA | Democratic | D+19.6 |
| SANTA CRUZ, CA | Democratic | D+30.7 |
| SHASTA, CA | Republican | R+26.0 |
| SIERRA, CA | Republican | R+25.1 |
| SISKIYOU, CA | Republican | R+16.0 |
| SOLANO, CA | Democratic | D+16.6 |
| SONOMA, CA | Democratic | D+27.0 |
| STANISLAUS, CA | Republican | R+1.3 |
| SUTTER, CA | Republican | R+25.2 |
| TEHAMA, CA | Republican | R+19.7 |
| TRINITY, CA | Republican | R+12.8 |
| TULARE, CA | Republican | R+17.8 |
| TUOLUMNE, CA | Republican | R+7.7 |
| VENTURA, CA | Republican | R+2.0 |
| YOLO, CA | Democratic | D+20.0 |
| YUBA, CA | Republican | R+12.4 |
presidential baselinePresident 1996D+12.9Senate 1998D+10.0vs. baselineR+2.8
California's 1998 Senate race ran 2.8 points more Republican than its 1996 presidential margin.
California's Senate margins
Every comparable D–R contest in our store, 1976–2024
| Year | Margin (D minus R) |
|---|---|
| 1976 | −3.3% |
| 1980 | +19.4% |
| 1982 | −6.8% |
| 1986 | +1.4% |
| 1988 | −8.8% |
| 1992 | +4.9% |
| 1994 | +1.9% |
| 1998 | +10.0% |
| 2000 | +19.3% |
| 2004 | +19.9% |
| 2006 | +24.4% |
| 2010 | +10.0% |
| 2012 | +25.0% |
| 2016 | +100.0% |
| 2018 | +100.0% |
| 2022 | +22.1% |
| 2024 | +17.7% |
Same ballot, 1998CA
Source. MIT Election Data + Science Lab — 1998 US Senate returns, party-classified by literal ballot party · county returns aggregated from precinct-level results. Real returns — nothing estimated.