Akashic
1876–2024
Elections / 2020 · Dem primary · IL

Biden led Illinois's 2020 Democratic presidential primary.

County-level returns aggregated statewide; Biden led by 22.7 points. This is the Democratic nominating contest — the November result is on the general-election page.

Statewide result
Illinois 2020 Democratic presidential primary — county returns aggregated statewide.
CandidateVotesShare
Biden986,66158.8%
Sanders605,70136.1%
Bloomberg25,5001.5%
Warren24,4131.5%
Other9,7300.6%
Buttigieg9,7290.6%
Gabbard9,6420.6%
Yang4,0210.2%
Klobuchar2,0170.1%
Steyer1,6840.1%
By county (102)
Each row links to the county's full place page.
CountyLed byMarginVotes
Cook CountyBiden+19.1941,892
DuPage CountyBiden+27.0113,351
Lake CountyBiden+36.184,551
Will CountyBiden+24.681,551
Kane CountyBiden+21.651,632
McHenry CountyBiden+24.031,209
St. Clair CountyBiden+42.629,598
Winnebago CountyBiden+19.426,534
Champaign CountySanders+2.626,042
Madison CountyBiden+27.325,772
McLean CountyBiden+12.118,928
Peoria CountyBiden+30.618,827
Sangamon CountyBiden+29.918,182
Rock Island CountyBiden+31.015,474
Kendall CountyBiden+20.214,175
DeKalb CountyBiden+7.110,727
LaSalle CountyBiden+29.410,236
Tazewell CountyBiden+31.010,172
Kankakee CountyBiden+25.29,095
Macon CountyBiden+34.87,626
Jackson CountyBiden+7.56,459
Whiteside CountyBiden+34.14,652
Knox CountyBiden+27.94,545
Vermilion CountyBiden+38.04,518
Boone CountyBiden+12.34,331
Williamson CountyBiden+29.14,319
Grundy CountyBiden+20.94,069
Ogle CountyBiden+20.23,964
Macoupin CountyBiden+36.33,902
Stephenson CountyBiden+35.93,754
Adams CountyBiden+40.83,671
Henry CountyBiden+42.43,471
Fulton CountyBiden+32.33,386
Coles CountyBiden+20.93,317
Bureau CountyBiden+36.42,660
Marion CountyBiden+36.12,622
Franklin CountyBiden+34.22,582
Woodford CountyBiden+34.82,552
Jo Daviess CountyBiden+44.32,543
Lee CountyBiden+24.42,503
Monroe CountyBiden+31.82,491
Jefferson CountyBiden+39.52,153
McDonough CountyBiden+26.62,143
Christian CountyBiden+36.11,956
Morgan CountyBiden+29.71,855
Livingston CountyBiden+34.41,773
Randolph CountyBiden+44.81,743
Montgomery CountyBiden+42.51,723
Effingham CountyBiden+37.21,644
Clinton CountyBiden+32.91,501
Union CountyBiden+29.11,415
Jersey CountyBiden+36.61,403
Mercer CountyBiden+40.21,366
Logan CountyBiden+24.51,345
Saline CountyBiden+32.71,338
Perry CountyBiden+44.21,332
Shelby CountyBiden+46.11,307
Piatt CountyBiden+30.11,293
Hancock CountyBiden+52.81,270
Warren CountyBiden+39.81,200
Mason CountyBiden+44.11,162
Iroquois CountyBiden+27.51,155
Bond CountyBiden+34.71,141
Carroll CountyBiden+39.81,055
Clark CountyBiden+31.81,051
Crawford CountyBiden+36.81,003
De Witt CountyBiden+35.5933
Greene CountyBiden+41.7841
Douglas CountyBiden+33.1827
Edgar CountyBiden+38.8807
Fayette CountyBiden+45.0806
Moultrie CountyBiden+39.5784
Richland CountyBiden+31.9772
Menard CountyBiden+44.3754
White CountyBiden+47.0749
Marshall CountyBiden+38.9733
Cass CountyBiden+36.7730
Lawrence CountyBiden+42.2711
Massac CountyBiden+33.2707
Pike CountyBiden+47.6674
Washington CountyBiden+30.6641
Ford CountyBiden+19.6632
Putnam CountyBiden+46.9616
Hamilton CountyBiden+49.2612
Henderson CountyBiden+45.8587
Gallatin CountyBiden+37.0586
Wayne CountyBiden+22.2582
Alexander CountyBiden+50.9578
Johnson CountyBiden+36.0561
Cumberland CountyBiden+36.8546
Wabash CountyBiden+41.2502
Jasper CountyBiden+40.5492
Clay CountyBiden+37.2487
Schuyler CountyBiden+46.1471
Pulaski CountyBiden+48.2390
Calhoun CountyBiden+53.2357
Stark CountyBiden+32.9325
Hardin CountyBiden+23.8248
Edwards CountyBiden+34.7222
Pope CountyBiden+28.8222
Brown CountyBiden+51.7211
Scott CountyBiden+31.6190