Elections / 2018 · Senate · WI
Wisconsin — 2018 U.S. Senate election
Recent presidential results
Akashicstate2018 Senate electionWisconsin · U.S. SenateBaldwinD+10.8
How it voted
Share of the 2018 vote
| Tammy Baldwin (i) ✓Democrat | 55.4% | 1,472,914 |
|---|---|---|
| Leah VukmirRepublican | 44.6% | 1,184,885 |
2018Senate margin
D+60R+60
72 counties, each filled by 2018 D-vs-R margin. Hover any county for its result.
County-level results (72 counties) — table
| County | Winner | Margin |
|---|---|---|
| ADAMS, WI | Republican | R+3.4 |
| ASHLAND, WI | Democratic | D+31.7 |
| BARRON, WI | Republican | R+7.2 |
| BAYFIELD, WI | Democratic | D+26.3 |
| BROWN, WI | Democratic | D+2.9 |
| BUFFALO, WI | Republican | R+0.4 |
| BURNETT, WI | Republican | R+13.9 |
| CALUMET, WI | Republican | R+8.8 |
| CHIPPEWA, WI | Republican | R+0.1 |
| CLARK, WI | Republican | R+12.7 |
| COLUMBIA, WI | Democratic | D+13.2 |
| CRAWFORD, WI | Democratic | D+17.5 |
| DANE, WI | Democratic | D+55.4 |
| DODGE, WI | Republican | R+14.6 |
| DOOR, WI | Democratic | D+11.5 |
| DOUGLAS, WI | Democratic | D+25.6 |
| DUNN, WI | Democratic | D+6.1 |
| EAU CLAIRE, WI | Democratic | D+21.9 |
| FLORENCE, WI | Republican | R+32.7 |
| FOND DU LAC, WI | Republican | R+14.4 |
| FOREST, WI | Republican | R+4.6 |
| GRANT, WI | Democratic | D+8.7 |
| GREEN, WI | Democratic | D+20.9 |
| GREEN LAKE, WI | Republican | R+20.6 |
| IOWA, WI | Democratic | D+30.9 |
| IRON, WI | Republican | R+4.8 |
| JACKSON, WI | Democratic | D+9.5 |
| JEFFERSON, WI | Republican | R+4.6 |
| JUNEAU, WI | Republican | R+7.6 |
| KENOSHA, WI | Democratic | D+13.5 |
| KEWAUNEE, WI | Republican | R+9.2 |
| LA CROSSE, WI | Democratic | D+25.6 |
| LAFAYETTE, WI | Democratic | D+10.7 |
| LANGLADE, WI | Republican | R+14.8 |
| LINCOLN, WI | Republican | R+3.3 |
| MANITOWOC, WI | Republican | R+6.4 |
| MARATHON, WI | Republican | R+5.8 |
| MARINETTE, WI | Republican | R+12.8 |
| MARQUETTE, WI | Republican | R+6.4 |
| MENOMINEE, WI | Democratic | D+60.6 |
| MILWAUKEE, WI | Democratic | D+43.0 |
| MONROE, WI | Republican | R+2.4 |
| OCONTO, WI | Republican | R+19.2 |
| ONEIDA, WI | Republican | R+4.0 |
| OUTAGAMIE, WI | Democratic | D+0.3 |
| OZAUKEE, WI | Republican | R+15.7 |
| PEPIN, WI | Republican | R+1.6 |
| PIERCE, WI | Democratic | D+5.5 |
| POLK, WI | Republican | R+10.5 |
| PORTAGE, WI | Democratic | D+16.3 |
| PRICE, WI | Republican | R+5.7 |
| RACINE, WI | Democratic | D+4.8 |
| RICHLAND, WI | Democratic | D+14.6 |
| ROCK, WI | Democratic | D+25.5 |
| RUSK, WI | Republican | R+12.0 |
| SAUK, WI | Democratic | D+17.7 |
| SAWYER, WI | Republican | R+2.7 |
| SHAWANO, WI | Republican | R+16.9 |
| SHEBOYGAN, WI | Republican | R+8.5 |
| ST. CROIX, WI | Republican | R+5.8 |
| TAYLOR, WI | Republican | R+24.6 |
| TREMPEALEAU, WI | Democratic | D+7.3 |
| VERNON, WI | Democratic | D+15.7 |
| VILAS, WI | Republican | R+14.9 |
| WALWORTH, WI | Republican | R+10.1 |
| WASHBURN, WI | Republican | R+6.7 |
| WASHINGTON, WI | Republican | R+34.2 |
| WAUKESHA, WI | Republican | R+23.6 |
| WAUPACA, WI | Republican | R+14.7 |
| WAUSHARA, WI | Republican | R+15.9 |
| WINNEBAGO, WI | Democratic | D+6.5 |
| WOOD, WI | Republican | R+2.8 |
presidential baselinePresident 2016R+0.8Senate 2018D+10.8vs. baselineD+11.6
Wisconsin's 2018 Senate race ran 11.6 points more Democratic than its 2016 presidential margin.
Wisconsin's Senate margins
Every contest in our store, 1976–2024
| Year | Margin (D minus R) |
|---|---|
| 1976 | +45.6% |
| 1980 | −1.9% |
| 1982 | +29.5% |
| 1986 | −3.5% |
| 1988 | +4.5% |
| 1992 | +6.6% |
| 1994 | +17.6% |
| 1998 | +2.1% |
| 2000 | +24.5% |
| 2004 | +11.2% |
| 2006 | +37.8% |
| 2010 | −4.8% |
| 2012 | +5.5% |
| 2016 | −3.4% |
| 2018 | +10.8% |
| 2022 | −1.0% |
| 2024 | +0.8% |
Same ballot, 2018WI
Source. MIT Election Data + Science Lab — 2018 US Senate returns, party-classified by literal ballot party · county returns aggregated from precinct-level results. Real returns — nothing estimated.