Illinois — 2008 presidential election
Recent presidential results
Akashicstate2008 presidential electionIllinois · PresidentObamaD+25.1
How it voted
Share of the 2008 vote
| Barack Obama ✓Democratic | 61.9% | 3,419,348 |
|---|---|---|
| John McCainRepublican | 36.8% | 2,031,179 |
| OtherAll other candidates | 1.3% | 71,844 |
2008presidential margin
D+60R+60
102 counties, each filled by 2008 D-vs-R margin. Hover any county for its result.
Illinois cast 21 electoral votes this cycle.
County-level results (102 counties) — table
| County | Winner | Margin |
|---|---|---|
| Adams County, IL | Republican | R+22.4 |
| Alexander County, IL | Democratic | D+12.6 |
| Bond County, IL | Republican | R+1.3 |
| Boone County, IL | Democratic | D+4.2 |
| Brown County, IL | Republican | R+21.7 |
| Bureau County, IL | Democratic | D+5.7 |
| Calhoun County, IL | Democratic | D+7.5 |
| Carroll County, IL | Democratic | D+4.8 |
| Cass County, IL | Democratic | D+1.3 |
| Champaign County, IL | Democratic | D+17.5 |
| Christian County, IL | Republican | R+6.3 |
| Clark County, IL | Republican | R+8.0 |
| Clay County, IL | Republican | R+23.3 |
| Clinton County, IL | Republican | R+9.8 |
| Coles County, IL | Democratic | D+3.2 |
| Cook County, IL | Democratic | D+53.4 |
| Crawford County, IL | Republican | R+13.0 |
| Cumberland County, IL | Republican | R+20.7 |
| De Witt County, IL | Republican | R+13.3 |
| DeKalb County, IL | Democratic | D+16.8 |
| Douglas County, IL | Republican | R+21.3 |
| DuPage County, IL | Democratic | D+10.8 |
| Edgar County, IL | Republican | R+7.9 |
| Edwards County, IL | Republican | R+29.8 |
| Effingham County, IL | Republican | R+36.0 |
| Fayette County, IL | Republican | R+15.8 |
| Ford County, IL | Republican | R+29.0 |
| Franklin County, IL | Republican | R+2.8 |
| Fulton County, IL | Democratic | D+21.3 |
| Gallatin County, IL | Democratic | D+13.1 |
| Greene County, IL | Republican | R+7.5 |
| Grundy County, IL | Democratic | D+1.7 |
| Hamilton County, IL | Republican | R+13.1 |
| Hancock County, IL | Republican | R+10.8 |
| Hardin County, IL | Republican | R+19.4 |
| Henderson County, IL | Democratic | D+17.7 |
| Henry County, IL | Democratic | D+7.7 |
| Iroquois County, IL | Republican | R+29.8 |
| Jackson County, IL | Democratic | D+21.8 |
| Jasper County, IL | Republican | R+17.6 |
| Jefferson County, IL | Republican | R+10.7 |
| Jersey County, IL | Republican | R+2.7 |
| Jo Daviess County, IL | Democratic | D+10.5 |
| Johnson County, IL | Republican | R+34.6 |
| Kane County, IL | Democratic | D+11.8 |
| Kankakee County, IL | Democratic | D+4.6 |
| Kendall County, IL | Democratic | D+7.2 |
| Knox County, IL | Democratic | D+19.9 |
| Lake County, IL | Democratic | D+19.6 |
| LaSalle County, IL | Democratic | D+11.1 |
| Lawrence County, IL | Republican | R+5.9 |
| Lee County, IL | Republican | R+3.0 |
| Livingston County, IL | Republican | R+19.2 |
| Logan County, IL | Republican | R+16.9 |
| Macon County, IL | Democratic | D+1.1 |
| Macoupin County, IL | Democratic | D+9.8 |
| Madison County, IL | Democratic | D+9.2 |
| Marion County, IL | Republican | R+2.0 |
| Marshall County, IL | Republican | R+1.0 |
| Mason County, IL | Democratic | D+5.9 |
| Massac County, IL | Republican | R+23.4 |
| McDonough County, IL | Democratic | D+5.6 |
| McHenry County, IL | Democratic | D+5.3 |
| McLean County, IL | Democratic | D+1.2 |
| Menard County, IL | Republican | R+14.9 |
| Mercer County, IL | Democratic | D+11.9 |
| Monroe County, IL | Republican | R+10.7 |
| Montgomery County, IL | Democratic | D+2.6 |
| Morgan County, IL | Republican | R+0.8 |
| Moultrie County, IL | Republican | R+12.8 |
| Ogle County, IL | Republican | R+7.6 |
| Peoria County, IL | Democratic | D+13.9 |
| Perry County, IL | Republican | R+3.9 |
| Piatt County, IL | Republican | R+12.6 |
| Pike County, IL | Republican | R+18.8 |
| Pope County, IL | Republican | R+22.3 |
| Pulaski County, IL | Democratic | D+1.4 |
| Putnam County, IL | Democratic | D+15.6 |
| Randolph County, IL | Republican | R+0.9 |
| Richland County, IL | Republican | R+15.0 |
| Rock Island County, IL | Democratic | D+24.6 |
| Saline County, IL | Republican | R+8.9 |
| Sangamon County, IL | Democratic | D+4.4 |
| Schuyler County, IL | Democratic | D+1.8 |
| Scott County, IL | Republican | R+14.0 |
| Shelby County, IL | Republican | R+19.8 |
| St. Clair County, IL | Democratic | D+22.4 |
| Stark County, IL | Republican | R+5.4 |
| Stephenson County, IL | Democratic | D+6.7 |
| Tazewell County, IL | Republican | R+6.0 |
| Union County, IL | Republican | R+11.9 |
| Vermilion County, IL | Democratic | D+0.6 |
| Wabash County, IL | Republican | R+13.7 |
| Warren County, IL | Democratic | D+8.1 |
| Washington County, IL | Republican | R+14.3 |
| Wayne County, IL | Republican | R+35.2 |
| White County, IL | Republican | R+9.0 |
| Whiteside County, IL | Democratic | D+17.6 |
| Will County, IL | Democratic | D+13.2 |
| Williamson County, IL | Republican | R+14.8 |
| Winnebago County, IL | Democratic | D+12.8 |
| Woodford County, IL | Republican | R+26.6 |
Illinois results by county
102 counties. Third-party and independent votes are reported by the county source as one combined figure; every named candidate is listed in the complete result below.
| Led by | |||||
|---|---|---|---|---|---|
| Adams County | John McCain+6,917 | 11,79438.3% | 18,71160.7% | 3181.0% | 30,823 |
| Alexander County | Barack Obama+497 | 2,18955.6% | 1,69243.0% | 561.4% | 3,937 |
| Bond County | John McCain+104 | 3,84348.5% | 3,94749.8% | 1341.7% | 7,924 |
| Boone County | Barack Obama+930 | 11,33351.1% | 10,40347.0% | 4211.9% | 22,157 |
| Brown County | John McCain+558 | 98638.4% | 1,54460.1% | 391.5% | 2,569 |
| Bureau County | Barack Obama+978 | 8,88951.9% | 7,91146.2% | 3131.8% | 17,113 |
| Calhoun County | Barack Obama+202 | 1,42352.7% | 1,22145.2% | 552.0% | 2,699 |
| Carroll County | Barack Obama+369 | 3,96551.7% | 3,59646.9% | 1131.5% | 7,674 |
| Cass County | Barack Obama+73 | 2,69049.7% | 2,61748.4% | 1011.9% | 5,408 |
| Champaign County | Barack Obama+14,726 | 48,59757.8% | 33,87140.3% | 1,6752.0% | 84,143 |
| Christian County | John McCain+954 | 6,91845.8% | 7,87252.1% | 3102.1% | 15,100 |
| Clark County | John McCain+667 | 3,74245.1% | 4,40953.2% | 1371.7% | 8,288 |
| Clay County | John McCain+1,501 | 2,42537.6% | 3,92660.8% | 1031.6% | 6,454 |
| Clinton County | John McCain+1,700 | 7,65744.2% | 9,35754.0% | 3001.7% | 17,314 |
| Coles County | Barack Obama+738 | 11,71650.8% | 10,97847.6% | 3821.7% | 23,076 |
| Cook County | Barack Obama+1,141,288 | 1,629,02476.2% | 487,73622.8% | 20,7061.0% | 2,137,466 |
| Crawford County | John McCain+1,187 | 3,88342.5% | 5,07055.5% | 1761.9% | 9,129 |
| Cumberland County | John McCain+1,101 | 2,05538.6% | 3,15659.3% | 1102.1% | 5,321 |
| De Witt County | John McCain+1,040 | 3,30842.4% | 4,34855.7% | 1451.9% | 7,801 |
| DeKalb County | Barack Obama+7,518 | 25,78457.5% | 18,26640.8% | 7681.7% | 44,818 |
| Douglas County | John McCain+1,777 | 3,22838.6% | 5,00559.9% | 1231.5% | 8,356 |
| DuPage County | Barack Obama+45,072 | 228,69854.7% | 183,62643.9% | 5,6491.4% | 417,973 |
| Edgar County | John McCain+655 | 3,74345.3% | 4,39853.3% | 1141.4% | 8,255 |
| Edwards County | John McCain+997 | 1,14034.0% | 2,13763.8% | 732.2% | 3,350 |
| Effingham County | John McCain+6,061 | 5,26231.3% | 11,32367.3% | 2501.5% | 16,835 |
| Fayette County | John McCain+1,532 | 3,96741.0% | 5,49956.8% | 2142.2% | 9,680 |
| Ford County | John McCain+1,852 | 2,22734.9% | 4,07963.9% | 801.3% | 6,386 |
| Franklin County | John McCain+524 | 8,88047.6% | 9,40450.4% | 3571.9% | 18,641 |
| Fulton County | Barack Obama+3,481 | 9,73259.6% | 6,25138.3% | 3402.1% | 16,323 |
| Gallatin County | Barack Obama+375 | 1,58755.5% | 1,21242.4% | 602.1% | 2,859 |
| Greene County | John McCain+434 | 2,61945.1% | 3,05352.6% | 1352.3% | 5,807 |
| Grundy County | Barack Obama+376 | 11,06349.9% | 10,68748.2% | 4211.9% | 22,171 |
| Hamilton County | John McCain+557 | 1,79642.1% | 2,35355.2% | 1152.7% | 4,264 |
| Hancock County | John McCain+1,020 | 4,14143.7% | 5,16154.5% | 1671.8% | 9,469 |
| Hardin County | John McCain+438 | 89239.6% | 1,33059.0% | 331.5% | 2,255 |
| Henderson County | Barack Obama+674 | 2,21558.1% | 1,54140.4% | 581.5% | 3,814 |
| Henry County | Barack Obama+1,918 | 13,18153.2% | 11,26345.4% | 3411.4% | 24,785 |
| Iroquois County | John McCain+4,052 | 4,64334.1% | 8,69564.0% | 2581.9% | 13,596 |
| Jackson County | Barack Obama+5,561 | 15,24859.7% | 9,68737.9% | 5972.3% | 25,532 |
| Jasper County | John McCain+901 | 2,06340.2% | 2,96457.8% | 1042.0% | 5,131 |
| Jefferson County | John McCain+1,840 | 7,46243.5% | 9,30254.3% | 3772.2% | 17,141 |
| Jersey County | John McCain+287 | 5,04247.6% | 5,32950.4% | 2122.0% | 10,583 |
| Jo Daviess County | Barack Obama+1,233 | 6,40354.5% | 5,17044.0% | 1771.5% | 11,750 |
| Johnson County | John McCain+2,041 | 1,87131.7% | 3,91266.3% | 1182.0% | 5,901 |
| Kane County | Barack Obama+22,793 | 106,75655.2% | 83,96343.4% | 2,5801.3% | 193,299 |
| Kankakee County | Barack Obama+2,223 | 24,75051.5% | 22,52746.9% | 7391.5% | 48,016 |
| Kendall County | Barack Obama+3,362 | 24,74253.1% | 21,38045.8% | 5091.1% | 46,631 |
| Knox County | Barack Obama+4,772 | 14,19159.2% | 9,41939.3% | 3781.6% | 23,988 |
| Lake County | Barack Obama+58,697 | 177,24259.3% | 118,54539.6% | 3,3181.1% | 299,105 |
| LaSalle County | Barack Obama+5,571 | 27,44354.7% | 21,87243.6% | 8701.7% | 50,185 |
| Lawrence County | John McCain+387 | 3,01646.1% | 3,40352.1% | 1171.8% | 6,536 |
| Lee County | John McCain+493 | 7,76547.6% | 8,25850.6% | 2951.8% | 16,318 |
| Livingston County | John McCain+3,002 | 6,18939.6% | 9,19158.8% | 2451.6% | 15,625 |
| Logan County | John McCain+2,179 | 5,25040.7% | 7,42957.6% | 2171.7% | 12,896 |
| Macon County | Barack Obama+539 | 25,48749.8% | 24,94848.7% | 7811.5% | 51,216 |
| Macoupin County | Barack Obama+2,199 | 12,09054.0% | 9,89144.2% | 3921.8% | 22,373 |
| Madison County | Barack Obama+11,802 | 68,97953.7% | 57,17744.6% | 2,1781.7% | 128,334 |
| Marion County | John McCain+346 | 8,34548.1% | 8,69150.1% | 3281.9% | 17,364 |
| Marshall County | John McCain+64 | 3,08148.6% | 3,14549.7% | 1071.7% | 6,333 |
| Mason County | Barack Obama+401 | 3,54252.0% | 3,14146.1% | 1251.8% | 6,808 |
| Massac County | John McCain+1,678 | 2,69337.5% | 4,37160.8% | 1221.7% | 7,186 |
| McDonough County | Barack Obama+728 | 6,78352.0% | 6,05546.4% | 2041.6% | 13,042 |
| McHenry County | Barack Obama+7,443 | 72,28851.9% | 64,84546.6% | 2,1351.5% | 139,268 |
| McLean County | Barack Obama+922 | 37,68949.8% | 36,76748.5% | 1,2941.7% | 75,750 |
| Menard County | John McCain+966 | 2,70641.9% | 3,67256.8% | 861.3% | 6,464 |
| Mercer County | Barack Obama+1,054 | 4,88755.2% | 3,83343.3% | 1281.4% | 8,848 |
| Monroe County | John McCain+1,928 | 7,95344.0% | 9,88154.6% | 2491.4% | 18,083 |
| Montgomery County | Barack Obama+341 | 6,49150.4% | 6,15047.8% | 2301.8% | 12,871 |
| Morgan County | John McCain+124 | 7,46748.6% | 7,59149.4% | 2951.9% | 15,353 |
| Moultrie County | John McCain+803 | 2,66842.6% | 3,47155.4% | 1211.9% | 6,260 |
| Ogle County | John McCain+1,891 | 11,25345.3% | 13,14452.9% | 4531.8% | 24,850 |
| Peoria County | Barack Obama+11,327 | 45,90656.2% | 34,57942.3% | 1,2191.5% | 81,704 |
| Perry County | John McCain+385 | 4,70147.0% | 5,08650.9% | 2082.1% | 9,995 |
| Piatt County | John McCain+1,132 | 3,85942.9% | 4,99155.5% | 1491.7% | 8,999 |
| Pike County | John McCain+1,433 | 3,02439.7% | 4,45758.5% | 1351.8% | 7,616 |
| Pope County | John McCain+498 | 84537.9% | 1,34360.2% | 431.9% | 2,231 |
| Pulaski County | Barack Obama+45 | 1,63850.1% | 1,59348.7% | 391.2% | 3,270 |
| Putnam County | Barack Obama+522 | 1,90056.9% | 1,37841.3% | 591.8% | 3,337 |
| Randolph County | John McCain+143 | 7,39548.6% | 7,53849.6% | 2691.8% | 15,202 |
| Richland County | John McCain+1,148 | 3,18141.6% | 4,32956.6% | 1401.8% | 7,650 |
| Rock Island County | Barack Obama+16,846 | 42,21061.7% | 25,36437.1% | 8271.2% | 68,401 |
| Saline County | John McCain+1,016 | 5,08344.5% | 6,09953.4% | 2462.2% | 11,428 |
| Sangamon County | Barack Obama+4,355 | 51,30051.4% | 46,94547.0% | 1,5831.6% | 99,828 |
| Schuyler County | Barack Obama+67 | 1,90049.7% | 1,83347.9% | 902.4% | 3,823 |
| Scott County | John McCain+365 | 1,09041.9% | 1,45556.0% | 552.1% | 2,600 |
| Shelby County | John McCain+2,151 | 4,24539.1% | 6,39658.9% | 2272.1% | 10,868 |
| St. Clair County | Barack Obama+28,202 | 76,16060.6% | 47,95838.1% | 1,6261.3% | 125,744 |
| Stark County | John McCain+156 | 1,35746.7% | 1,51352.0% | 371.3% | 2,907 |
| Stephenson County | Barack Obama+1,440 | 11,34952.5% | 9,90945.9% | 3471.6% | 21,605 |
| Tazewell County | John McCain+3,863 | 29,38446.0% | 33,24752.1% | 1,2231.9% | 63,854 |
| Union County | John McCain+1,085 | 3,91843.0% | 5,00354.9% | 1952.1% | 9,116 |
| Vermilion County | Barack Obama+192 | 16,24649.4% | 16,05448.8% | 5721.7% | 32,872 |
| Wabash County | John McCain+792 | 2,46242.6% | 3,25456.3% | 661.1% | 5,782 |
| Warren County | Barack Obama+649 | 4,28653.4% | 3,63745.3% | 1061.3% | 8,029 |
| Washington County | John McCain+1,131 | 3,34242.1% | 4,47356.4% | 1171.5% | 7,932 |
| Wayne County | John McCain+2,843 | 2,54731.6% | 5,39066.8% | 1341.7% | 8,071 |
| White County | John McCain+672 | 3,31544.5% | 3,98753.5% | 1512.0% | 7,453 |
| Whiteside County | Barack Obama+4,724 | 15,60758.0% | 10,88340.4% | 4161.5% | 26,906 |
| Will County | Barack Obama+37,809 | 160,40656.0% | 122,59742.8% | 3,4171.2% | 286,420 |
| Williamson County | John McCain+4,450 | 12,58941.8% | 17,03956.5% | 5131.7% | 30,141 |
| Winnebago County | Barack Obama+16,148 | 70,03455.6% | 53,88642.8% | 2,1111.7% | 126,031 |
| Woodford County | John McCain+5,192 | 6,99935.9% | 12,19162.6% | 2931.5% | 19,483 |
Nominees: Barack Obama (D) · John McCain (R)
Illinois's presidential margins
1892–2024, the 2008 contest in context
| Year | Margin (D minus R) |
|---|---|
| 1892 | +3.1% |
| 1896 | −13.0% |
| 1900 | −8.4% |
| 1904 | −28.3% |
| 1908 | −15.5% |
| 1912 | +13.2% |
| 1916 | −9.2% |
| 1920 | −42.3% |
| 1924 | −35.5% |
| 1928 | −14.7% |
| 1932 | +13.2% |
| 1936 | +18.0% |
| 1940 | +2.4% |
| 1944 | +3.5% |
| 1948 | +0.8% |
| 1952 | −9.9% |
| 1956 | −19.2% |
| 1960 | +0.2% |
| 1964 | +18.9% |
| 1968 | −2.9% |
| 1972 | −18.5% |
| 1976 | −2.0% |
| 1980 | −7.9% |
| 1984 | −12.9% |
| 1988 | −2.1% |
| 1992 | +14.2% |
| 1996 | +17.5% |
| 2000 | +12.0% |
| 2004 | +10.3% |
| 2008 | +25.1% |
| 2012 | +16.8% |
| 2016 | +16.9% |
| 2020 | +16.9% |
| 2024 | +10.9% |
Same ballot, 2008IL
Source. MIT Election Data + Science Lab — 2008 presidential returns · official county-level results. Real returns — nothing estimated.