Illinois 2016 vs 2020: county swing
63 of 102 counties moved toward the Republican ticket; 2 changed hands.
| County | 2016 | 2020 | Swing | Votes 2016 | Votes 2020 |
|---|---|---|---|---|---|
| Calhoun County | R+38.2 | R+49.4 | R+11.2 | 2,571 | 2,773 |
| Mason County | R+31.5 | R+39.5 | R+8.0 | 6,486 | 6,766 |
| Cass County | R+31.2 | R+37.8 | R+6.6 | 5,124 | 5,326 |
| Alexander County | R+8.3 | R+14.2 | R+5.9 | 2,846 | 2,625 |
| Schuyler County | R+37.8 | R+43.5 | R+5.7 | 3,828 | 3,918 |
| Fulton County | R+15.0 | R+20.1 | R+5.1 | 15,797 | 16,724 |
| McDonough County | R+11.5 | R+16.6 | R+5.1 | 13,092 | 12,285 |
| Gallatin County | R+47.4 | R+52.2 | R+4.8 | 2,707 | 2,675 |
| Pulaski County | R+26.0 | R+30.7 | R+4.7 | 2,735 | 2,631 |
| Henderson County | R+28.5 | R+33.0 | R+4.5 | 3,518 | 3,656 |
| Fayette County | R+57.9 | R+61.8 | R+3.9 | 9,585 | 10,076 |
| Randolph County | R+46.4 | R+50.2 | R+3.8 | 14,194 | 14,910 |
| Stark County | R+37.4 | R+41.2 | R+3.8 | 2,743 | 2,886 |
| Edgar County | R+48.9 | R+52.6 | R+3.7 | 7,873 | 8,196 |
| Bond County | R+37.4 | R+41.0 | R+3.6 | 7,530 | 8,144 |
| Livingston County | R+40.6 | R+44.2 | R+3.6 | 15,269 | 17,174 |
| Mercer County | R+20.4 | R+24.0 | R+3.6 | 8,525 | 8,914 |
| Kankakee County | R+13.0 | R+16.5 | R+3.5 | 47,305 | 50,039 |
| Warren County | R+16.5 | R+20.0 | R+3.5 | 7,807 | 7,924 |
| Clark County | R+47.2 | R+50.6 | R+3.4 | 7,928 | 8,355 |
| Cook County | D+53.7 | D+50.4 | R+3.3 | 2,158,615 | 2,321,399 |
| Pike County | R+57.6 | R+60.9 | R+3.3 | 7,530 | 7,965 |
| Shelby County | R+53.9 | R+57.2 | R+3.3 | 11,010 | 12,097 |
| Vermilion County | R+29.6 | R+32.9 | R+3.3 | 30,570 | 31,642 |
| Jasper County | R+59.4 | R+62.5 | R+3.1 | 5,136 | 5,586 |
| Carroll County | R+26.7 | R+29.4 | R+2.7 | 7,445 | 8,024 |
| Franklin County | R+44.8 | R+47.5 | R+2.7 | 18,711 | 18,669 |
| Knox County | R+3.0 | R+5.7 | R+2.7 | 22,243 | 23,205 |
| Marion County | R+43.9 | R+46.6 | R+2.7 | 17,074 | 17,492 |
| Grundy County | R+23.2 | R+25.8 | R+2.6 | 23,237 | 26,753 |
| Hamilton County | R+57.7 | R+60.3 | R+2.6 | 4,166 | 4,323 |
| Jefferson County | R+42.8 | R+45.2 | R+2.4 | 16,999 | 17,436 |
| Menard County | R+37.0 | R+39.4 | R+2.4 | 6,515 | 6,954 |
| Clinton County | R+48.7 | R+51.0 | R+2.3 | 17,419 | 19,214 |
| Greene County | R+52.6 | R+54.9 | R+2.3 | 5,585 | 6,227 |
| Macoupin County | R+34.2 | R+36.5 | R+2.3 | 22,360 | 24,070 |
| Christian County | R+42.4 | R+44.6 | R+2.2 | 15,459 | 16,204 |
| Clay County | R+63.0 | R+65.2 | R+2.2 | 6,350 | 6,899 |
| Crawford County | R+49.1 | R+51.3 | R+2.2 | 8,728 | 9,441 |
| Morgan County | R+29.6 | R+31.8 | R+2.2 | 14,800 | 15,333 |
| Perry County | R+44.6 | R+46.7 | R+2.1 | 9,853 | 10,071 |
| Whiteside County | R+6.2 | R+8.3 | R+2.1 | 25,582 | 27,375 |
| Cumberland County | R+57.1 | R+59.1 | R+2.0 | 5,567 | 5,850 |
| Jackson County | D+3.3 | D+1.3 | R+2.0 | 24,617 | 22,716 |
| Hancock County | R+47.0 | R+48.9 | R+1.9 | 9,121 | 9,383 |
| Jersey County | R+46.1 | R+48.0 | R+1.9 | 10,991 | 11,960 |
| Jo Daviess County | R+14.6 | R+16.5 | R+1.9 | 11,334 | 12,495 |
| Brown County | R+55.5 | R+57.3 | R+1.8 | 2,379 | 2,525 |
| Bureau County | R+19.6 | R+21.4 | R+1.8 | 16,571 | 17,434 |
| Moultrie County | R+47.3 | R+49.0 | R+1.7 | 6,283 | 6,744 |
| Montgomery County | R+39.5 | R+41.0 | R+1.5 | 12,978 | 13,761 |
| Iroquois County | R+55.4 | R+56.7 | R+1.3 | 13,064 | 14,044 |
| Scott County | R+54.9 | R+56.2 | R+1.3 | 2,608 | 2,741 |
| Marshall County | R+33.4 | R+34.5 | R+1.1 | 5,984 | 6,345 |
| Lawrence County | R+53.0 | R+54.0 | R+1.0 | 6,094 | 6,422 |
| Washington County | R+55.5 | R+56.5 | R+1.0 | 7,427 | 7,921 |
| De Witt County | R+42.0 | R+42.9 | R+0.9 | 7,543 | 8,024 |
| Johnson County | R+57.6 | R+58.5 | R+0.9 | 6,089 | 6,450 |
| Henry County | R+20.8 | R+21.4 | R+0.6 | 24,643 | 25,700 |
| Logan County | R+39.3 | R+39.8 | R+0.5 | 12,401 | 13,294 |
| Union County | R+39.7 | R+40.2 | R+0.5 | 8,537 | 8,904 |
| Coles County | R+26.1 | R+26.4 | R+0.3 | 21,863 | 22,606 |
| Wabash County | R+53.0 | R+53.3 | R+0.3 | 5,464 | 5,607 |
| Hardin County | R+57.4 | R+57.4 | Even | 2,148 | 2,162 |
| Macon County | R+17.7 | R+17.7 | Even | 48,060 | 49,387 |
| LaSalle County | R+14.4 | R+14.3 | D+0.1 | 49,743 | 53,683 |
| Ogle County | R+26.0 | R+25.9 | D+0.1 | 24,193 | 26,340 |
| White County | R+57.6 | R+57.5 | D+0.1 | 7,335 | 7,431 |
| Lee County | R+19.9 | R+19.6 | D+0.3 | 15,489 | 16,440 |
| Edwards County | R+70.0 | R+69.6 | D+0.4 | 3,347 | 3,368 |
| Ford County | R+47.9 | R+47.3 | D+0.6 | 6,396 | 6,967 |
| Putnam County | R+19.9 | R+19.3 | D+0.6 | 3,111 | 3,390 |
| Stephenson County | R+16.3 | R+15.7 | D+0.6 | 20,343 | 22,048 |
| Adams County | R+47.3 | R+46.5 | D+0.8 | 31,951 | 33,527 |
| Effingham County | R+59.9 | R+59.1 | D+0.8 | 17,609 | 19,083 |
| Woodford County | R+40.9 | R+40.1 | D+0.8 | 19,864 | 21,498 |
| Boone County | R+14.3 | R+13.4 | D+0.9 | 23,001 | 24,979 |
| Monroe County | R+36.7 | R+35.7 | D+1.0 | 19,354 | 21,206 |
| Massac County | R+49.2 | R+48.0 | D+1.2 | 6,683 | 6,818 |
| Wayne County | R+71.6 | R+70.4 | D+1.2 | 8,261 | 8,499 |
| Richland County | R+54.1 | R+52.8 | D+1.3 | 7,684 | 8,063 |
| Douglas County | R+45.9 | R+44.4 | D+1.5 | 8,169 | 8,760 |
| Pope County | R+60.8 | R+59.3 | D+1.5 | 2,142 | 2,175 |
| Madison County | R+15.2 | R+13.3 | D+1.9 | 130,179 | 137,558 |
| Will County | D+6.4 | D+8.3 | D+1.9 | 300,904 | 346,266 |
| Saline County | R+50.1 | R+47.9 | D+2.2 | 11,384 | 11,089 |
| Tazewell County | R+28.0 | R+25.7 | D+2.3 | 64,400 | 69,051 |
| Winnebago County | D+0.1 | D+2.5 | D+2.4 | 118,376 | 127,710 |
| DeKalb County | D+3.1 | D+5.8 | D+2.7 | 43,600 | 47,989 |
| St. Clair County | D+5.7 | D+8.7 | D+3.0 | 120,580 | 128,104 |
| Peoria County | D+3.1 | D+6.3 | D+3.2 | 78,503 | 83,973 |
| Piatt County | R+33.1 | R+29.6 | D+3.5 | 9,008 | 9,851 |
| Williamson County | R+40.8 | R+37.3 | D+3.5 | 31,852 | 33,729 |
| DuPage County | D+14.5 | D+18.1 | D+3.6 | 428,769 | 485,064 |
| Rock Island County | D+8.3 | D+12.1 | D+3.8 | 63,994 | 66,817 |
| Kane County | D+10.5 | D+14.4 | D+3.9 | 199,314 | 231,876 |
| Lake County | D+20.2 | D+24.1 | D+3.9 | 303,520 | 334,156 |
| Champaign County | D+18.3 | D+22.8 | D+4.5 | 91,628 | 95,568 |
| Sangamon County | R+9.2 | R+4.4 | D+4.8 | 98,373 | 104,751 |
| McHenry County | R+7.6 | R+2.5 | D+5.1 | 141,750 | 164,578 |
| McLean County flipped | R+1.3 | D+4.0 | D+5.3 | 79,835 | 87,389 |
| Kendall County flipped | R+0.1 | D+5.8 | D+5.9 | 53,447 | 64,205 |
Official results As published by The American Presidency Project (UC Santa Barbara) and the state documents it links. How we use this data