Illinois — 1984 U.S. Senate election

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state1984 Senate electionIllinois · U.S. SenateSimonD+1.9

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How it voted

Share of the 1984 vote

Paul Simon ✓Democrat	50.1%	2,397,165
Charles H. PercyRepublican	48.2%	2,308,039
Steven I. GivotLibertarian	1.2%	59,777

1984Senate margin

D+60

D+30TieR+30

R+60

102 counties, each filled by 1984 D-vs-R margin. Hover any county for its result.

County-level results (102 counties) — table

1984 Senate result by county for Illinois — 1984 US Senate election — winner and D-vs-R margin.

County	Winner	Margin
ADAMS, IL	Republican	R+13.0
ALEXANDER, IL	Democratic	D+30.9
BOND, IL	Democratic	D+8.7
BOONE, IL	Republican	R+21.7
BROWN, IL	Republican	R+4.3
BUREAU, IL	Republican	R+12.0
CALHOUN, IL	Democratic	D+18.6
CARROLL, IL	Republican	R+24.3
CASS, IL	Democratic	D+5.2
CHAMPAIGN, IL	Republican	R+7.6
CHRISTIAN, IL	Democratic	D+11.6
CLARK, IL	Republican	R+15.5
CLAY, IL	Republican	R+17.3
CLINTON, IL	Democratic	D+4.8
COLES, IL	Republican	R+16.0
COOK, IL	Democratic	D+14.7
CRAWFORD, IL	Republican	R+24.0
CUMBERLAND, IL	Republican	R+13.0
DE WITT, IL	Republican	R+15.7
DEKALB, IL	Republican	R+14.7
DOUGLAS, IL	Republican	R+16.2
DU PAGE, IL	Republican	R+35.8
EDGAR, IL	Republican	R+25.0
EDWARDS, IL	Republican	R+34.6
EFFINGHAM, IL	Republican	R+12.9
FAYETTE, IL	Democratic	D+3.1
FORD, IL	Republican	R+29.7
FRANKLIN, IL	Democratic	D+29.4
FULTON, IL	Democratic	D+8.3
GALLATIN, IL	Democratic	D+26.4
GREENE, IL	Democratic	D+8.2
GRUNDY, IL	Republican	R+14.7
HAMILTON, IL	Democratic	D+15.4
HANCOCK, IL	Republican	R+15.1
HARDIN, IL	Democratic	D+14.3
HENDERSON, IL	Republican	R+9.9
HENRY, IL	Republican	R+6.9
IROQUOIS, IL	Republican	R+33.4
JACKSON, IL	Democratic	D+19.9
JASPER, IL	Republican	R+15.7
JEFFERSON, IL	Democratic	D+9.1
JERSEY, IL	Democratic	D+9.2
JO DAVIESS, IL	Republican	R+21.8
JOHNSON, IL	Republican	R+6.4
KANE, IL	Republican	R+22.4
KANKAKEE, IL	Republican	R+7.2
KENDALL, IL	Republican	R+29.1
KNOX, IL	Republican	R+5.3
LA SALLE, IL	Democratic	D+2.0
LAKE, IL	Republican	R+20.3
LAWRENCE, IL	Republican	R+17.0
LEE, IL	Republican	R+25.5
LIVINGSTON, IL	Republican	R+31.0
LOGAN, IL	Republican	R+23.8
MACON, IL	Democratic	D+5.1
MACOUPIN, IL	Democratic	D+14.2
MADISON, IL	Democratic	D+19.4
MARION, IL	Democratic	D+10.4
MARSHALL, IL	Republican	R+7.8
MASON, IL	Democratic	D+4.7
MASSAC, IL	Democratic	D+21.0
MCDONOUGH, IL	Republican	R+19.5
MCHENRY, IL	Republican	R+35.5
MCLEAN, IL	Republican	R+21.4
MENARD, IL	Republican	R+16.2
MERCER, IL	Republican	R+4.7
MONROE, IL	Democratic	D+6.7
MONTGOMERY, IL	Democratic	D+5.6
MORGAN, IL	Republican	R+10.2
MOULTRIE, IL	Democratic	D+0.3
OGLE, IL	Republican	R+28.2
PEORIA, IL	Democratic	D+2.3
PERRY, IL	Democratic	D+14.1
PIATT, IL	Republican	R+11.2
PIKE, IL	Democratic	D+0.4
POPE, IL	Democratic	D+10.0
PULASKI, IL	Democratic	D+17.7
PUTNAM, IL	Republican	R+0.8
RANDOLPH, IL	Democratic	D+16.9
RICHLAND, IL	Republican	R+32.7
ROCK ISLAND, IL	Democratic	D+12.0
SALINE, IL	Democratic	D+20.8
SANGAMON, IL	Republican	R+2.4
SCHUYLER, IL	Republican	R+11.6
SCOTT, IL	Republican	R+14.8
SHELBY, IL	Democratic	D+2.0
ST. CLAIR, IL	Democratic	D+21.7
STARK, IL	Republican	R+19.3
STEPHENSON, IL	Republican	R+22.4
TAZEWELL, IL	Republican	R+2.3
UNION, IL	Democratic	D+16.7
VERMILION, IL	Republican	R+8.6
WABASH, IL	Republican	R+26.5
WARREN, IL	Republican	R+24.0
WASHINGTON, IL	Republican	R+9.8
WAYNE, IL	Republican	R+28.2
WHITE, IL	Republican	R+5.3
WHITESIDE, IL	Republican	R+6.8
WILL, IL	Republican	R+9.4
WILLIAMSON, IL	Democratic	D+17.1
WINNEBAGO, IL	Republican	R+7.5
WOODFORD, IL	Republican	R+22.5

Source. MIT Election Data + Science Lab — 1984 US Senate returns, party-classified by literal ballot party · county returns aggregated from precinct-level results. Real returns — nothing estimated.