Illinois — 2004 U.S. Senate election
Recent presidential results
state2004 Senate electionIllinois · U.S. SenateObamaD+42.9
How it voted
Share of the 2004 vote
| Barack Obama ✓Democrat | 70.0% | 3,597,456 |
|---|---|---|
| Alan KeyesRepublican | 27.1% | 1,390,690 |
| Albert J. FranzenIndependent | 1.6% | 81,164 |
2004Senate margin
D+60R+60
102 counties, each filled by 2004 D-vs-R margin. Hover any county for its result.
County-level results (102 counties) — table
| County | Winner | Margin |
|---|---|---|
| ADAMS, IL | Democratic | D+7.1 |
| ALEXANDER, IL | Democratic | D+34.2 |
| BOND, IL | Democratic | D+21.0 |
| BOONE, IL | Democratic | D+20.3 |
| BROWN, IL | Democratic | D+9.6 |
| BUREAU, IL | Democratic | D+25.1 |
| CALHOUN, IL | Democratic | D+26.6 |
| CARROLL, IL | Democratic | D+28.1 |
| CASS, IL | Democratic | D+26.5 |
| CHAMPAIGN, IL | Democratic | D+32.7 |
| CHRISTIAN, IL | Democratic | D+28.3 |
| CLARK, IL | Republican | R+3.5 |
| CLAY, IL | Republican | R+17.6 |
| CLINTON, IL | Democratic | D+17.4 |
| COLES, IL | Democratic | D+18.7 |
| COOK, IL | Democratic | D+64.7 |
| CRAWFORD, IL | Democratic | D+0.5 |
| CUMBERLAND, IL | Democratic | D+2.0 |
| DE WITT, IL | Democratic | D+18.1 |
| DEKALB, IL | Democratic | D+35.6 |
| DOUGLAS, IL | Democratic | D+6.3 |
| DU PAGE, IL | Democratic | D+32.4 |
| EDGAR, IL | Democratic | D+1.9 |
| EDWARDS, IL | Republican | R+23.0 |
| EFFINGHAM, IL | Republican | R+17.0 |
| FAYETTE, IL | Democratic | D+7.6 |
| FORD, IL | Democratic | D+0.6 |
| FRANKLIN, IL | Democratic | D+30.6 |
| FULTON, IL | Democratic | D+42.9 |
| GALLATIN, IL | Democratic | D+44.3 |
| GREENE, IL | Democratic | D+18.2 |
| GRUNDY, IL | Democratic | D+31.0 |
| HAMILTON, IL | Democratic | D+18.2 |
| HANCOCK, IL | Democratic | D+10.7 |
| HARDIN, IL | Democratic | D+11.2 |
| HENDERSON, IL | Democratic | D+37.4 |
| HENRY, IL | Democratic | D+31.3 |
| IROQUOIS, IL | Republican | R+4.2 |
| JACKSON, IL | Democratic | D+41.4 |
| JASPER, IL | Republican | R+12.4 |
| JEFFERSON, IL | Democratic | D+14.3 |
| JERSEY, IL | Democratic | D+18.8 |
| JO DAVIESS, IL | Democratic | D+24.8 |
| JOHNSON, IL | Democratic | D+2.9 |
| KANE, IL | Democratic | D+30.6 |
| KANKAKEE, IL | Democratic | D+30.7 |
| KENDALL, IL | Democratic | D+22.1 |
| KNOX, IL | Democratic | D+42.7 |
| LA SALLE, IL | Democratic | D+33.4 |
| LAKE, IL | Democratic | D+40.5 |
| LAWRENCE, IL | Democratic | D+4.6 |
| LEE, IL | Democratic | D+17.3 |
| LIVINGSTON, IL | Democratic | D+12.7 |
| LOGAN, IL | Democratic | D+11.1 |
| MACON, IL | Democratic | D+24.2 |
| MACOUPIN, IL | Democratic | D+33.8 |
| MADISON, IL | Democratic | D+31.3 |
| MARION, IL | Democratic | D+23.9 |
| MARSHALL, IL | Democratic | D+24.2 |
| MASON, IL | Democratic | D+32.7 |
| MASSAC, IL | Republican | R+5.3 |
| MCDONOUGH, IL | Democratic | D+32.7 |
| MCHENRY, IL | Democratic | D+27.1 |
| MCLEAN, IL | Democratic | D+25.8 |
| MENARD, IL | Democratic | D+17.1 |
| MERCER, IL | Democratic | D+35.2 |
| MONROE, IL | Democratic | D+19.4 |
| MONTGOMERY, IL | Democratic | D+30.7 |
| MORGAN, IL | Democratic | D+21.1 |
| MOULTRIE, IL | Democratic | D+13.3 |
| OGLE, IL | Democratic | D+12.7 |
| PEORIA, IL | Democratic | D+37.0 |
| PERRY, IL | Democratic | D+31.6 |
| PIATT, IL | Democratic | D+13.9 |
| PIKE, IL | Democratic | D+4.1 |
| POPE, IL | Democratic | D+8.3 |
| PULASKI, IL | Democratic | D+20.6 |
| PUTNAM, IL | Democratic | D+37.6 |
| RANDOLPH, IL | Democratic | D+28.1 |
| RICHLAND, IL | Republican | R+15.3 |
| ROCK ISLAND, IL | Democratic | D+44.1 |
| SALINE, IL | Democratic | D+24.1 |
| SANGAMON, IL | Democratic | D+30.4 |
| SCHUYLER, IL | Democratic | D+18.0 |
| SCOTT, IL | Democratic | D+8.5 |
| SHELBY, IL | Democratic | D+7.2 |
| ST. CLAIR, IL | Democratic | D+37.1 |
| STARK, IL | Democratic | D+20.6 |
| STEPHENSON, IL | Democratic | D+21.1 |
| TAZEWELL, IL | Democratic | D+21.7 |
| UNION, IL | Democratic | D+16.4 |
| VERMILION, IL | Democratic | D+21.5 |
| WABASH, IL | Republican | R+12.3 |
| WARREN, IL | Democratic | D+32.9 |
| WASHINGTON, IL | Democratic | D+10.4 |
| WAYNE, IL | Republican | R+15.9 |
| WHITE, IL | Democratic | D+7.0 |
| WHITESIDE, IL | Democratic | D+37.1 |
| WILL, IL | Democratic | D+36.9 |
| WILLIAMSON, IL | Democratic | D+21.4 |
| WINNEBAGO, IL | Democratic | D+28.9 |
| WOODFORD, IL | Democratic | D+4.1 |
presidential baselinePresident 2004D+10.3Senate 2004D+42.9vs. baselineD+32.6
Illinois's 2004 Senate race ran 32.6 points more Democratic than the presidential race on the same ballot.
Illinois's Senate margins
Every comparable D–R contest in our store, 1978–2022
| Year | Margin (D minus R) |
|---|---|
| 1978 | −7.9% |
| 1980 | +13.5% |
| 1984 | +1.9% |
| 1986 | +31.4% |
| 1990 | +30.1% |
| 1992 | +10.2% |
| 1996 | +15.4% |
| 1998 | −2.9% |
| 2002 | +22.3% |
| 2004 | +42.9% |
| 2008 | +39.3% |
| 2010 | −1.6% |
| 2014 | +10.9% |
| 2016 | +15.1% |
| 2020 | +16.1% |
| 2022 | +15.3% |
Same ballot, 2004IL
Source. MIT Election Data + Science Lab — 2004 US Senate returns, party-classified by literal ballot party · county returns aggregated from precinct-level results. Real returns — nothing estimated.